Fixed error 'java.lang.ClassCastException: cannot be cast to...

Fixed error 'java.lang.ClassCastException:  cannot be cast to android.view.WindowManagerImpl' on Android when using native alert dialogs, updated README.md with Xcode version required

.idea/workspace.xml

@@ -15,7 +15,25 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="9b41f7a2-a71e-4923-91fb-249d7815b3e7" name="Default" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/CHANGELOG.md" beforeDir="false" afterPath="$PROJECT_DIR$/CHANGELOG.md" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/InAppWebViewChromeClient.java" beforeDir="false" afterPath="$PROJECT_DIR$/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/InAppWebViewChromeClient.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/ios/Flutter/flutter_export_environment.sh" beforeDir="false" afterPath="$PROJECT_DIR$/example/ios/Flutter/flutter_export_environment.sh" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/ios/Runner.xcodeproj/project.pbxproj" beforeDir="false" afterPath="$PROJECT_DIR$/example/ios/Runner.xcodeproj/project.pbxproj" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/pubspec.yaml" beforeDir="false" afterPath="$PROJECT_DIR$/example/pubspec.yaml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" beforeDir="false" afterPath="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/channel_manager.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/channel_manager.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/chrome_safari_browser.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/chrome_safari_browser.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/content_blocker.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/content_blocker.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/cookie_manager.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/cookie_manager.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/in_app_browser.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/in_app_browser.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/in_app_localhost_server.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/in_app_localhost_server.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/in_app_webview.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/in_app_webview.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/types.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/types.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/webview_options.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/webview_options.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pubspec.yaml" beforeDir="false" afterPath="$PROJECT_DIR$/pubspec.yaml" afterDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/.dart_tool/" />
     <ignored path="$PROJECT_DIR$/.idea/" />
@@ -35,12 +53,13 @@
   <component name="ExecutionTargetManager" SELECTED_TARGET="Pixel_3_XL_API_24" />
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="true">
+      <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/README.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="330">
-              <caret line="22" column="92" selection-start-line="22" selection-start-column="92" selection-end-line="22" selection-end-column="92" />
+            <state relative-caret-position="12735">
+              <caret line="849" selection-start-line="849" selection-end-line="849" />
               <folding>
+                <element signature="e#0#20#0" expanded="true" />
                 <element signature="e#0#39#0" expanded="true" />
                 <element signature="e#0#39#0" expanded="true" />
               </folding>
@@ -51,29 +70,29 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="255">
-              <caret line="17" column="101" lean-forward="true" selection-start-line="17" selection-start-column="101" selection-end-line="17" selection-end-column="101" />
+            <state relative-caret-position="30">
+              <caret line="2" column="145" selection-start-line="2" selection-start-column="145" selection-end-line="2" selection-end-column="145" />
             </state>
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/pubspec.yaml">
+      <file pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state>
-              <caret column="26" selection-start-column="6" selection-end-column="26" />
+            <state relative-caret-position="304">
+              <caret line="78" column="1" selection-start-line="78" selection-start-column="1" selection-end-line="78" selection-end-column="1" />
+              <folding>
+                <element signature="e#0#20#0" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/lib/src/in_app_webview.dart">
+        <entry file="file://$USER_HOME$/Downloads/in_app_webiew_example.screen.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="235">
-              <caret line="1170" column="66" selection-start-line="1170" selection-start-column="66" selection-end-line="1170" selection-end-column="66" />
-              <folding>
-                <element signature="e#0#17#0" expanded="true" />
-              </folding>
+            <state relative-caret-position="345">
+              <caret line="33" column="57" selection-start-line="33" selection-start-column="2" selection-end-line="33" selection-end-column="57" />
             </state>
           </provider>
         </entry>
@@ -90,13 +109,6 @@
   </component>
   <component name="FindInProjectRecents">
     <findStrings>
-      <find>reload</find>
-      <find>methods</find>
-      <find>class</find>
-      <find>HttpAuthCredentialDatabase</find>
-      <find>###</find>
-      <find>#####</find>
-      <find>loadFile</find>
       <find>window.</find>
       <find>onLoadHttpError</find>
       <find>microphone</find>
@@ -117,9 +129,16 @@
       <find>[InAppBrowser]</find>
       <find>Response({</find>
       <find>flutter_inappbrowser</find>
-      <find>flutterInAppBrowserPlatformReady</find>
       <find>InAppBrowser</find>
       <find>PlatformRead</find>
+      <find>flutterInAppBrowserPlatformReady</find>
+      <find>llowContentAccess</find>
+      <find>ppCache</find>
+      <find>onReceivedClientCertRequest</find>
+      <find>a SSL</find>
+      <find>iltInZoomControls</find>
+      <find>databaseEnabled</find>
+      <find>Cookie</find>
     </findStrings>
     <replaceStrings>
       <replace>activity.getPreferences(0)</replace>
@@ -142,13 +161,10 @@
   <component name="IdeDocumentHistory">
     <option name="CHANGED_PATHS">
       <list>
-        <option value="$PROJECT_DIR$/.github/ISSUE_TEMPLATE/BUG_REPORT.md" />
-        <option value="$PROJECT_DIR$/example/test_driver/app_test.dart" />
         <option value="$PROJECT_DIR$/lib/src/chrome_safari_browser.dart" />
         <option value="$PROJECT_DIR$/example/assets/index.html" />
         <option value="$PROJECT_DIR$/lib/src/types.dart" />
         <option value="$PROJECT_DIR$/example/android/app/src/main/AndroidManifest.xml" />
-        <option value="$PROJECT_DIR$/pubspec.yaml" />
         <option value="$PROJECT_DIR$/lib/flutter_inappwebview.dart" />
         <option value="$PROJECT_DIR$/ios/flutter_inappbrowser.podspec" />
         <option value="$PROJECT_DIR$/example/lib/in_app_webiew_example.screen.dart" />
@@ -168,7 +184,6 @@
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_download_start_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_find_result_received_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_js_dialog_test.dart" />
-        <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_http_error_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_resource_custom_scheme_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_resource_test.dart" />
@@ -180,23 +195,28 @@
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_target_blank_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_should_override_url_loading_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_ssl_request_test.dart" />
-        <option value="$PROJECT_DIR$/lib/src/in_app_browser.dart" />
-        <option value="$PROJECT_DIR$/lib/src/webview_options.dart" />
-        <option value="$PROJECT_DIR$/example/pubspec.yaml" />
-        <option value="$PROJECT_DIR$/example/lib/main.dart" />
         <option value="$PROJECT_DIR$/ios/Classes/InAppBrowserFlutterPlugin.m" />
         <option value="$PROJECT_DIR$/ios/Classes/InAppWebViewFlutterPlugin.h" />
         <option value="$PROJECT_DIR$/ios/Classes/SwiftFlutterPlugin.swift" />
-        <option value="$PROJECT_DIR$/lib/src/in_app_webview.dart" />
         <option value="$PROJECT_DIR$/lib/src/cookie_manager.dart" />
         <option value="$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart" />
         <option value="$PROJECT_DIR$/example/test_assets/in_app_webview_initial_file_test.html" />
+        <option value="$PROJECT_DIR$/.git/config" />
+        <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" />
+        <option value="$PROJECT_DIR$/example/pubspec.yaml" />
+        <option value="$PROJECT_DIR$/lib/src/in_app_webview.dart" />
+        <option value="$PROJECT_DIR$/pubspec.yaml" />
         <option value="$PROJECT_DIR$/CHANGELOG.md" />
+        <option value="$PROJECT_DIR$/lib/src/webview_options.dart" />
+        <option value="$PROJECT_DIR$/lib/src/in_app_browser.dart" />
+        <option value="$PROJECT_DIR$/lib/src/channel_manager.dart" />
+        <option value="$PROJECT_DIR$/example/lib/main.dart" />
         <option value="$PROJECT_DIR$/README.md" />
       </list>
     </option>
   </component>
-  <component name="ProjectFrameBounds">
+  <component name="ProjectFrameBounds" extendedState="6">
+    <option name="x" value="-1" />
     <option name="y" value="23" />
     <option name="width" value="1920" />
     <option name="height" value="1057" />
@@ -248,6 +268,42 @@
               <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
               <item name="example" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="assets" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="assets" type="462c0819:PsiDirectoryNode" />
+              <item name="images" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="lib" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="test_driver" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="lib" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="lib" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+            </path>
           </expand>
           <select />
         </subPane>
@@ -284,6 +340,10 @@
     <property name="show.migrate.to.gradle.popup" value="false" />
   </component>
   <component name="RecentsManager">
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/example/assets/images" />
+      <recent name="$PROJECT_DIR$/android/src/main/java" />
+    </key>
     <key name="CopyFile.RECENT_KEYS">
       <recent name="$PROJECT_DIR$/example/test_driver" />
       <recent name="$PROJECT_DIR$/example/test_assets" />
@@ -291,10 +351,6 @@
       <recent name="$PROJECT_DIR$/example/assets/images" />
       <recent name="$PROJECT_DIR$/android/libs" />
     </key>
-    <key name="MoveFile.RECENT_KEYS">
-      <recent name="$PROJECT_DIR$/example/assets/images" />
-      <recent name="$PROJECT_DIR$/android/src/main/java" />
-    </key>
   </component>
   <component name="RunDashboard">
     <option name="ruleStates">
@@ -412,8 +468,7 @@
     </todo-panel>
   </component>
   <component name="ToolWindowManager">
-    <frame x="0" y="23" width="1920" height="1057" extended-state="0" />
-    <editor active="true" />
+    <frame x="-1" y="23" width="1920" height="1057" extended-state="6" />
     <layout>
       <window_info content_ui="combo" id="Project" order="0" sideWeight="0.6177474" visible="true" weight="0.20766774" />
       <window_info id="Structure" order="1" sideWeight="0.38225257" side_tool="true" weight="0.2087327" />
@@ -434,7 +489,7 @@
       <window_info anchor="bottom" id="Android Profiler" order="7" show_stripe_button="false" />
       <window_info anchor="bottom" id="Event Log" order="8" sideWeight="0.50532484" side_tool="true" weight="0.35751295" />
       <window_info anchor="bottom" id="Version Control" order="9" />
-      <window_info active="true" anchor="bottom" id="Terminal" order="10" sideWeight="0.4946752" visible="true" weight="0.38860103" />
+      <window_info active="true" anchor="bottom" id="Terminal" order="10" sideWeight="0.4946752" visible="true" weight="0.5668394" />
       <window_info anchor="bottom" id="Logcat" order="11" weight="0.32953367" />
       <window_info anchor="bottom" id="Messages" order="12" sideWeight="0.4968051" weight="0.33782384" />
       <window_info anchor="bottom" id="Dependency Viewer" order="13" weight="0.32800853" />
@@ -464,55 +519,6 @@
     </ignored-roots>
   </component>
   <component name="editorHistoryManager">
-    <entry file="file://$PROJECT_DIR$/lib/src/content_blocker.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state>
-          <folding>
-            <element signature="e#0#41#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/test.sh">
-      <provider selected="true" editor-type-id="text-editor" />
-    </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/types.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="570">
-          <caret line="1614" column="101" selection-start-line="1614" selection-start-column="70" selection-end-line="1614" selection-end-column="101" />
-          <folding>
-            <element signature="e#0#20#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/example/flutter_webview_example_android.iml">
-      <provider selected="true" editor-type-id="text-editor" />
-    </entry>
-    <entry file="file://$PROJECT_DIR$/example/flutter_webview_example.iml">
-      <provider selected="true" editor-type-id="text-editor" />
-    </entry>
-    <entry file="file://$PROJECT_DIR$/ios/flutter_inappwebview.podspec">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="60">
-          <caret line="4" column="44" selection-start-line="4" selection-start-column="44" selection-end-line="4" selection-end-column="44" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/example/lib/in_app_browser_example.screen.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="45">
-          <caret line="3" column="57" selection-start-line="3" selection-start-column="57" selection-end-line="3" selection-end-column="57" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/example/lib/chrome_safari_browser_example.screen.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="15">
-          <caret line="1" column="57" selection-start-line="1" selection-start-column="57" selection-end-line="1" selection-end-column="57" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/example/test_driver/custom_widget_test.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="45">
@@ -562,13 +568,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_initial_file_test.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="30">
-          <caret line="2" column="57" selection-start-line="2" selection-start-column="57" selection-end-line="2" selection-end-column="57" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_initial_url_test.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="30">
@@ -611,13 +610,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="30">
-          <caret line="2" column="57" selection-start-line="2" selection-start-column="57" selection-end-line="2" selection-end-column="57" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_http_error_test.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="30">
@@ -688,143 +680,222 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_ssl_request_test.dart">
+    <entry file="file://$PROJECT_DIR$/example/lib/in_app_webiew_example.screen.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="15">
+          <caret line="1" column="57" selection-start-line="1" selection-start-column="57" selection-end-line="1" selection-end-column="57" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/ios/Classes/InAppWebViewFlutterPlugin.h">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="285">
+          <caret line="19" column="36" selection-start-line="19" selection-start-column="36" selection-end-line="19" selection-end-column="36" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/ios/Classes/InAppWebViewFlutterPlugin.m">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="300">
+          <caret line="20" column="41" selection-start-line="20" selection-start-column="16" selection-end-line="20" selection-end-column="41" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/ios/Classes/SwiftFlutterPlugin.swift">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-496">
+        <state relative-caret-position="765">
+          <caret line="51" column="91" selection-start-line="51" selection-start-column="71" selection-end-line="51" selection-end-column="91" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/cookie_manager.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="180">
+          <caret line="12" column="101" selection-start-line="12" selection-start-column="101" selection-end-line="12" selection-end-column="101" />
           <folding>
-            <element signature="e#1#40#0" expanded="true" />
+            <element signature="e#0#20#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/webview_options.dart">
+    <entry file="file://$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="32">
-          <caret line="3" column="20" selection-start-line="3" selection-start-column="20" selection-end-line="3" selection-end-column="20" />
+        <state relative-caret-position="195">
+          <caret line="13" column="101" selection-start-line="13" selection-start-column="101" selection-end-line="13" selection-end-column="101" />
           <folding>
-            <element signature="e#0#17#0" expanded="true" />
+            <element signature="e#0#20#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/in_app_browser.dart">
+    <entry file="file://$PROJECT_DIR$/example/assets/index.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-147" />
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/test_assets/in_app_webview_initial_file_test.html">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="90">
-          <caret line="6" column="8" selection-start-line="6" selection-start-column="8" selection-end-line="6" selection-end-column="8" />
+        <state relative-caret-position="135">
+          <caret line="9" column="22" selection-start-line="9" selection-start-column="22" selection-end-line="9" selection-end-column="22" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/lib/in_app_webiew_example.screen.dart">
+    <entry file="file://$PROJECT_DIR$/android/src/main/AndroidManifest.xml">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/.git/description">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/.git/config">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="15">
-          <caret line="1" column="57" selection-start-line="1" selection-start-column="57" selection-end-line="1" selection-end-column="57" />
+        <state relative-caret-position="195">
+          <caret line="13" lean-forward="true" selection-start-line="13" selection-end-line="13" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/pubspec.yaml">
+    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="180">
-          <caret line="12" column="32" selection-start-line="12" selection-start-column="32" selection-end-line="12" selection-end-column="32" />
+        <state relative-caret-position="357">
+          <caret line="27" column="33" selection-start-line="27" selection-start-column="33" selection-end-line="27" selection-end-column="33" />
+          <folding>
+            <element signature="e#0#39#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/ios/Classes/InAppWebViewFlutterPlugin.h">
+    <entry file="file://$PROJECT_DIR$/lib/src/types.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="285">
-          <caret line="19" column="36" selection-start-line="19" selection-start-column="36" selection-end-line="19" selection-end-column="36" />
+        <state relative-caret-position="161">
+          <caret line="480" column="9" selection-start-line="480" selection-start-column="9" selection-end-line="480" selection-end-column="9" />
+          <folding>
+            <element signature="e#0#20#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/ios/Classes/InAppWebViewFlutterPlugin.m">
+    <entry file="file://$USER_HOME$/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity-0.4.5+6/lib/connectivity.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="300">
-          <caret line="20" column="41" selection-start-line="20" selection-start-column="16" selection-end-line="20" selection-end-column="41" />
+        <state relative-caret-position="75">
+          <caret line="11" column="5" selection-start-line="11" selection-start-column="5" selection-end-line="11" selection-end-column="5" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
+    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_ssl_request_test.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="367">
+          <caret line="52" column="22" selection-start-line="50" selection-start-column="20" selection-end-line="52" selection-end-column="22" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_initial_file_test.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="182">
-          <caret line="14" column="1" lean-forward="true" selection-start-line="14" selection-start-column="1" selection-end-line="14" selection-end-column="1" />
+        <state relative-caret-position="96">
+          <caret line="28" column="85" selection-start-line="28" selection-start-column="20" selection-end-line="28" selection-end-column="85" />
           <folding>
-            <element signature="e#0#20#0" expanded="true" />
+            <element signature="e#0#39#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/ios/Classes/SwiftFlutterPlugin.swift">
+    <entry file="file://$PROJECT_DIR$/example/pubspec.yaml">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="765">
-          <caret line="51" column="91" selection-start-line="51" selection-start-column="71" selection-end-line="51" selection-end-column="91" />
+        <state relative-caret-position="360">
+          <caret line="24" column="24" selection-start-line="24" selection-start-column="24" selection-end-line="24" selection-end-column="24" />
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/lib/src/in_app_webview.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="235">
-          <caret line="1170" column="66" selection-start-line="1170" selection-start-column="66" selection-end-line="1170" selection-end-column="66" />
+        <state relative-caret-position="161">
+          <caret line="105" column="30" selection-start-line="105" selection-start-column="15" selection-end-line="105" selection-end-column="30" />
           <folding>
             <element signature="e#0#17#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/cookie_manager.dart">
+    <entry file="file://$PROJECT_DIR$/pubspec.yaml">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="180">
-          <caret line="12" column="101" selection-start-line="12" selection-start-column="101" selection-end-line="12" selection-end-column="101" />
+        <state relative-caret-position="165">
+          <caret line="11" column="10" selection-start-line="11" selection-start-column="10" selection-end-line="11" selection-end-column="10" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/in_app_browser.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="413">
+          <caret line="539" column="3" lean-forward="true" selection-start-line="539" selection-start-column="3" selection-end-line="539" selection-end-column="3" />
           <folding>
             <element signature="e#0#20#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart">
+    <entry file="file://$PROJECT_DIR$/lib/src/channel_manager.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="195">
-          <caret line="13" column="101" selection-start-line="13" selection-start-column="101" selection-end-line="13" selection-end-column="101" />
+        <state relative-caret-position="225">
+          <caret line="15" column="36" selection-start-line="15" selection-start-column="36" selection-end-line="15" selection-end-column="36" />
           <folding>
             <element signature="e#0#20#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/assets/index.html">
+    <entry file="file://$PROJECT_DIR$/lib/flutter_inappwebview.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-147" />
+        <state relative-caret-position="315">
+          <caret line="21" column="29" lean-forward="true" selection-start-line="21" selection-start-column="29" selection-end-line="21" selection-end-column="29" />
+          <folding>
+            <element signature="e#0#1252#0" expanded="true" />
+          </folding>
+        </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/test_assets/in_app_webview_initial_file_test.html">
+    <entry file="file://$PROJECT_DIR$/lib/src/webview_options.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="135">
-          <caret line="9" column="22" selection-start-line="9" selection-start-column="22" selection-end-line="9" selection-end-column="22" />
+        <state relative-caret-position="10620">
+          <caret line="708" column="23" lean-forward="true" selection-start-line="708" selection-start-column="23" selection-end-line="708" selection-end-column="23" />
+          <folding>
+            <element signature="e#0#17#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/android/src/main/AndroidManifest.xml">
-      <provider selected="true" editor-type-id="text-editor" />
+    <entry file="file://$USER_HOME$/Downloads/in_app_webiew_example.screen.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="345">
+          <caret line="33" column="57" selection-start-line="33" selection-start-column="2" selection-end-line="33" selection-end-column="57" />
+        </state>
+      </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
+    <entry file="file://$PROJECT_DIR$/README.md">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="255">
-          <caret line="17" column="101" lean-forward="true" selection-start-line="17" selection-start-column="101" selection-end-line="17" selection-end-column="101" />
+        <state relative-caret-position="12735">
+          <caret line="849" selection-start-line="849" selection-end-line="849" />
+          <folding>
+            <element signature="e#0#20#0" expanded="true" />
+            <element signature="e#0#39#0" expanded="true" />
+            <element signature="e#0#39#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/pubspec.yaml">
+    <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
       <provider selected="true" editor-type-id="text-editor">
-        <state>
-          <caret column="26" selection-start-column="6" selection-end-column="26" />
+        <state relative-caret-position="30">
+          <caret line="2" column="145" selection-start-line="2" selection-start-column="145" selection-end-line="2" selection-end-column="145" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
+    <entry file="file://$PROJECT_DIR$/example/README.md">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="330">
-          <caret line="22" column="92" selection-start-line="22" selection-start-column="92" selection-end-line="22" selection-end-column="92" />
+        <state relative-caret-position="304">
+          <caret line="78" column="1" selection-start-line="78" selection-start-column="1" selection-end-line="78" selection-end-column="1" />
           <folding>
-            <element signature="e#0#39#0" expanded="true" />
-            <element signature="e#0#39#0" expanded="true" />
+            <element signature="e#0#20#0" expanded="true" />
           </folding>
         </state>
       </provider>

CHANGELOG.md

+## 2.0.1+1
+
+- Fixed error "java.lang.ClassCastException: $Proxy1 cannot be cast to android.view.WindowManagerImpl" on Android when using native alert dialogs
+
 ## 2.0.1
 
 - Added `onPermissionRequest` event. This event is fired when the webview is requesting permission to access the specified resources and the permission currently isn't granted or denied (available only on Android).

README.md

@@ -14,7 +14,7 @@ A Flutter plugin that allows you to add an inline webview or open an in-app brow
 - Dart sdk: ">=2.0.0-dev.68.0 <3.0.0"
 - Flutter: ">=1.9.1+hotfix.5 <2.0.0"
 - Android: `minSdkVersion 17`
-- iOS: `--ios-language swift`
+- iOS: `--ios-language swift`, Xcode version `>= 11`
 
 ### Note for Android
 
@@ -440,7 +440,7 @@ Instead, on the `onLoadStop` WebView event, you can use `callHandler` directly:
 * `onSafeBrowsingHit`: Event fired when the webview notifies that a loading URL has been flagged by Safe Browsing (available only on Android).
 * `onReceivedHttpAuthRequest`: Event fired when the WebView received an HTTP authentication request. The default behavior is to cancel the request.
 * `onReceivedServerTrustAuthRequest`: Event fired when the WebView need to perform server trust authentication (certificate validation).
-* `onReceivedClientCertRequest`: Notify the host application to handle a SSL client certificate request.
+* `onReceivedClientCertRequest`: Notify the host application to handle an SSL client certificate request.
 * `onFindResultReceived`: Event fired as find-on-page operations progress.
 * `shouldInterceptAjaxRequest`: Event fired when an `XMLHttpRequest` is sent to a server.
 * `onAjaxReadyStateChange`: Event fired whenever the `readyState` attribute of an `XMLHttpRequest` changes.

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/InAppWebViewChromeClient.java

@@ -164,7 +164,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
       }
     };
 
-    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(registrar.activeContext(), R.style.Theme_AppCompat_Dialog_Alert);
     alertDialogBuilder.setMessage(alertMessage);
     if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
       alertDialogBuilder.setPositiveButton(confirmButtonTitle, clickListener);
@@ -255,7 +255,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
       }
     };
 
-    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(registrar.activeContext(), R.style.Theme_AppCompat_Dialog_Alert);
     alertDialogBuilder.setMessage(alertMessage);
     if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
       alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);
@@ -372,7 +372,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
       }
     };
 
-    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(registrar.activeContext(), R.style.Theme_AppCompat_Dialog_Alert);
     alertDialogBuilder.setMessage(alertMessage);
     if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
       alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);

example/ios/Flutter/flutter_export_environment.sh

@@ -2,9 +2,10 @@
 # This is a generated file; do not edit or check into version control.
 export "FLUTTER_ROOT=/Users/lorenzopichilli/flutter"
 export "FLUTTER_APPLICATION_PATH=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example"
-export "FLUTTER_TARGET=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example/test_driver/app.dart"
+export "FLUTTER_TARGET=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example/lib/main.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "SYMROOT=${SOURCE_ROOT}/../build/ios"
 export "FLUTTER_FRAMEWORK_DIR=/Users/lorenzopichilli/flutter/bin/cache/artifacts/engine/ios"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
+export "TRACK_WIDGET_CREATION=true"

example/ios/Runner.xcodeproj/project.pbxproj

@@ -268,6 +268,8 @@
 			inputPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
 				"${PODS_ROOT}/../.symlinks/flutter/ios/Flutter.framework",
+				"${BUILT_PRODUCTS_DIR}/Reachability/Reachability.framework",
+				"${BUILT_PRODUCTS_DIR}/connectivity/connectivity.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_downloader/flutter_downloader.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_inappwebview/flutter_inappwebview.framework",
 				"${BUILT_PRODUCTS_DIR}/path_provider/path_provider.framework",
@@ -275,6 +277,8 @@
 			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Flutter.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Reachability.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/connectivity.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_downloader.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_inappwebview.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/path_provider.framework",

example/pubspec.yaml

@@ -22,6 +22,7 @@ dependencies:
   flutter_downloader: ^1.3.2
   path_provider: ^1.4.0
   permission_handler: ^3.3.0
+  connectivity: ^0.4.5+6
   flutter_inappwebview:
     path: ../
 

example/test_driver/in_app_webview_on_load_error_test.dart

@@ -27,7 +27,7 @@ class InAppWebViewOnLoadErrorTestState extends WidgetTestState {
               Expanded(
                 child: Container(
                   child: InAppWebView(
-                    initialUrl: "http://not-existing-domain.org/",
+                    initialUrl: "https://not-existing-domain.org/",
                     initialHeaders: {},
                     initialOptions: InAppWebViewWidgetOptions(
                         inAppWebViewOptions: InAppWebViewOptions(

lib/src/channel_manager.dart

@@ -6,7 +6,8 @@ import 'package:flutter/services.dart';
 import 'types.dart' show ListenerCallback;
 
 class ChannelManager {
-  static const MethodChannel channel = const MethodChannel('com.pichillilorenzo/flutter_inappbrowser');
+  static const MethodChannel channel =
+      const MethodChannel('com.pichillilorenzo/flutter_inappbrowser');
   static bool initialized = false;
   static final listeners = HashMap<String, ListenerCallback>();
 
@@ -16,12 +17,11 @@ class ChannelManager {
   }
 
   static void addListener(String key, ListenerCallback callback) {
-    if (!initialized)
-      init();
+    if (!initialized) init();
     listeners.putIfAbsent(key, () => callback);
   }
 
-  static void init () {
+  static void init() {
     channel.setMethodCallHandler(_handleMethod);
     initialized = true;
   }

lib/src/chrome_safari_browser.dart

@@ -20,7 +20,7 @@ class ChromeSafariBrowser {
   bool _isOpened = false;
 
   ///Initialize the [ChromeSafariBrowser] instance with an [InAppBrowser] fallback instance or `null`.
-  ChromeSafariBrowser ({bFallback}) {
+  ChromeSafariBrowser({bFallback}) {
     uuid = uuidGenerator.v4();
     browserFallback = bFallback;
     ChannelManager.addListener(uuid, handleMethod);
@@ -28,7 +28,7 @@ class ChromeSafariBrowser {
   }
 
   Future<dynamic> handleMethod(MethodCall call) async {
-    switch(call.method) {
+    switch (call.method) {
       case "onChromeSafariBrowserOpened":
         onOpened();
         break;
@@ -53,7 +53,11 @@ class ChromeSafariBrowser {
   ///[headersFallback]: The additional header of the [InAppBrowser] instance fallback to be used in the HTTP request for this URL, specified as a map from name to value.
   ///
   ///[optionsFallback]: Options used by the [InAppBrowser] instance fallback.
-  Future<void> open({@required String url, ChromeSafariBrowserClassOptions options, Map<String, String> headersFallback = const {}, InAppBrowserClassOptions optionsFallback}) async {
+  Future<void> open(
+      {@required String url,
+      ChromeSafariBrowserClassOptions options,
+      Map<String, String> headersFallback = const {},
+      InAppBrowserClassOptions optionsFallback}) async {
     assert(url != null && url.isNotEmpty);
     this.throwIsAlreadyOpened(message: 'Cannot open $url!');
 
@@ -65,21 +69,33 @@ class ChromeSafariBrowser {
 
     Map<String, dynamic> optionsFallbackMap = {};
     if (optionsFallback != null) {
-      optionsFallbackMap.addAll(optionsFallback.inAppBrowserOptions?.toMap() ?? {});
-      optionsFallbackMap.addAll(optionsFallback.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+      optionsFallbackMap
+          .addAll(optionsFallback.inAppBrowserOptions?.toMap() ?? {});
+      optionsFallbackMap.addAll(optionsFallback
+              .inAppWebViewWidgetOptions?.inAppWebViewOptions
+              ?.toMap() ??
+          {});
       if (Platform.isAndroid) {
-        optionsFallbackMap.addAll(optionsFallback.androidInAppBrowserOptions?.toMap() ?? {});
-        optionsFallbackMap.addAll(optionsFallback.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
-      }
-      else if (Platform.isIOS) {
-        optionsFallbackMap.addAll(optionsFallback.iosInAppBrowserOptions?.toMap() ?? {});
-        optionsFallbackMap.addAll(optionsFallback.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+        optionsFallbackMap
+            .addAll(optionsFallback.androidInAppBrowserOptions?.toMap() ?? {});
+        optionsFallbackMap.addAll(optionsFallback
+                .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
+                ?.toMap() ??
+            {});
+      } else if (Platform.isIOS) {
+        optionsFallbackMap
+            .addAll(optionsFallback.iosInAppBrowserOptions?.toMap() ?? {});
+        optionsFallbackMap.addAll(optionsFallback
+                .inAppWebViewWidgetOptions?.iosInAppWebViewOptions
+                ?.toMap() ??
+            {});
       }
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('uuid', () => uuid);
-    args.putIfAbsent('uuidFallback', () => (browserFallback != null) ? browserFallback.uuid : '');
+    args.putIfAbsent('uuidFallback',
+        () => (browserFallback != null) ? browserFallback.uuid : '');
     args.putIfAbsent('url', () => url);
     args.putIfAbsent('headers', () => headersFallback);
     args.putIfAbsent('options', () => optionsMap);
@@ -91,19 +107,13 @@ class ChromeSafariBrowser {
   }
 
   ///Event fires when the [ChromeSafariBrowser] is opened.
-  void onOpened() {
-
-  }
+  void onOpened() {}
 
   ///Event fires when the [ChromeSafariBrowser] is loaded.
-  void onLoaded() {
-
-  }
+  void onLoaded() {}
 
   ///Event fires when the [ChromeSafariBrowser] is closed.
-  void onClosed() {
-
-  }
+  void onClosed() {}
 
   ///Returns `true` if the [ChromeSafariBrowser] instance is opened, otherwise `false`.
   bool isOpened() {
@@ -112,13 +122,17 @@ class ChromeSafariBrowser {
 
   void throwIsAlreadyOpened({String message = ''}) {
     if (this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is already opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is already opened.'
+      ]);
     }
   }
 
   void throwIsNotOpened({String message = ''}) {
     if (!this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is not opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is not opened.'
+      ]);
     }
   }
 }

lib/src/content_blocker.dart

@@ -11,27 +11,22 @@ import 'types.dart';
 class ContentBlocker {
   ///Trigger of the content blocker. The trigger tells to the WebView when to perform the corresponding action.
   ContentBlockerTrigger trigger;
+
   ///Action associated to the trigger. The action tells to the WebView what to do when the trigger is matched.
   ContentBlockerAction action;
 
-  ContentBlocker({@required this.trigger,@required this.action});
+  ContentBlocker({@required this.trigger, @required this.action});
 
   Map<String, Map<String, dynamic>> toMap() {
-    return {
-      "trigger": trigger.toMap(),
-      "action": action.toMap()
-    };
+    return {"trigger": trigger.toMap(), "action": action.toMap()};
   }
 
   static ContentBlocker fromMap(Map<dynamic, Map<dynamic, dynamic>> map) {
     return ContentBlocker(
         trigger: ContentBlockerTrigger.fromMap(
-          Map<String, dynamic>.from(map["trigger"])
-        ),
+            Map<String, dynamic>.from(map["trigger"])),
         action: ContentBlockerAction.fromMap(
-          Map<String, dynamic>.from(map["action"])
-        )
-      );
+            Map<String, dynamic>.from(map["action"])));
   }
 }
 
@@ -42,29 +37,42 @@ class ContentBlocker {
 class ContentBlockerTrigger {
   ///A regular expression pattern to match the URL against.
   String urlFilter;
+
   ///Used only by iOS. A Boolean value. The default value is false.
   bool urlFilterIsCaseSensitive;
+
   ///A list of [ContentBlockerTriggerResourceType] representing the resource types (how the browser intends to use the resource) that the rule should match.
   ///If not specified, the rule matches all resource types.
   List<ContentBlockerTriggerResourceType> resourceType;
+
   ///A list of strings matched to a URL's domain; limits action to a list of specific domains.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Add * in front to match domain and subdomains. Can't be used with [ContentBlockerTrigger.unlessDomain].
   List<String> ifDomain;
+
   ///A list of strings matched to a URL's domain; acts on any site except domains in a provided list.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Add * in front to match domain and subdomains. Can't be used with [ContentBlockerTrigger.ifDomain].
   List<String> unlessDomain;
+
   ///A list of [ContentBlockerTriggerLoadType] that can include one of two mutually exclusive values. If not specified, the rule matches all load types.
   List<ContentBlockerTriggerLoadType> loadType;
+
   ///A list of strings matched to the entire main document URL; limits the action to a specific list of URL patterns.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Can't be used with [ContentBlockerTrigger.unlessTopUrl].
   List<String> ifTopUrl;
+
   ///An array of strings matched to the entire main document URL; acts on any site except URL patterns in provided list.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Can't be used with [ContentBlockerTrigger.ifTopUrl].
   List<String> unlessTopUrl;
 
-  ContentBlockerTrigger({@required String urlFilter, bool urlFilterIsCaseSensitive = false, List<ContentBlockerTriggerResourceType> resourceType = const [],
-    List<String> ifDomain = const [], List<String> unlessDomain = const [], List<ContentBlockerTriggerLoadType> loadType = const [],
-    List<String> ifTopUrl = const [], List<String> unlessTopUrl = const []}) {
+  ContentBlockerTrigger(
+      {@required String urlFilter,
+      bool urlFilterIsCaseSensitive = false,
+      List<ContentBlockerTriggerResourceType> resourceType = const [],
+      List<String> ifDomain = const [],
+      List<String> unlessDomain = const [],
+      List<ContentBlockerTriggerLoadType> loadType = const [],
+      List<String> ifTopUrl = const [],
+      List<String> unlessTopUrl = const []}) {
     this.urlFilter = urlFilter;
     assert(this.urlFilter != null);
     this.resourceType = resourceType;
@@ -101,7 +109,9 @@ class ContentBlockerTrigger {
     };
 
     map.keys
-        .where((key) => map[key] == null || (map[key] is List && (map[key] as List).length == 0)) // filter keys
+        .where((key) =>
+            map[key] == null ||
+            (map[key] is List && (map[key] as List).length == 0)) // filter keys
         .toList() // create a copy to avoid concurrent modifications
         .forEach(map.remove);
 
@@ -112,7 +122,8 @@ class ContentBlockerTrigger {
     List<ContentBlockerTriggerResourceType> resourceType = [];
     List<ContentBlockerTriggerLoadType> loadType = [];
 
-    List<String> resourceTypeStringList = List<String>.from(map["resource-type"] ?? []);
+    List<String> resourceTypeStringList =
+        List<String>.from(map["resource-type"] ?? []);
     resourceTypeStringList.forEach((type) {
       resourceType.add(ContentBlockerTriggerResourceType.fromValue(type));
     });
@@ -130,8 +141,7 @@ class ContentBlockerTrigger {
         resourceType: resourceType,
         loadType: loadType,
         ifTopUrl: List<String>.from(map["if-top-url"] ?? []),
-        unlessTopUrl: List<String>.from(map["unless-top-url"] ?? [])
-    );
+        unlessTopUrl: List<String>.from(map["unless-top-url"] ?? []));
   }
 }
 
@@ -143,11 +153,13 @@ class ContentBlockerTrigger {
 class ContentBlockerAction {
   ///Type of the action.
   ContentBlockerActionType type;
+
   ///If the action type is [ContentBlockerActionType.CSS_DISPLAY_NONE], then also the [selector] property is required, otherwise it is ignored.
   ///It specify a string that defines a selector list. Use CSS identifiers as the individual selector values, separated by commas.
   String selector;
 
-  ContentBlockerAction({@required ContentBlockerActionType type, String selector}) {
+  ContentBlockerAction(
+      {@required ContentBlockerActionType type, String selector}) {
     this.type = type;
     assert(this.type != null);
     if (this.type == ContentBlockerActionType.CSS_DISPLAY_NONE) {
@@ -157,13 +169,12 @@ class ContentBlockerAction {
   }
 
   Map<String, dynamic> toMap() {
-    Map<String, dynamic> map =  {
-      "type": type.toValue(),
-      "selector": selector
-    };
+    Map<String, dynamic> map = {"type": type.toValue(), "selector": selector};
 
     map.keys
-        .where((key) => map[key] == null || (map[key] is List && (map[key] as List).length == 0)) // filter keys
+        .where((key) =>
+            map[key] == null ||
+            (map[key] is List && (map[key] as List).length == 0)) // filter keys
         .toList() // create a copy to avoid concurrent modifications
         .forEach(map.remove);
 
@@ -173,7 +184,6 @@ class ContentBlockerAction {
   static ContentBlockerAction fromMap(Map<String, dynamic> map) {
     return ContentBlockerAction(
         type: ContentBlockerActionType.fromValue(map["type"]),
-        selector: map["selector"]
-    );
+        selector: map["selector"]);
   }
 }

lib/src/cookie_manager.dart

@@ -10,7 +10,8 @@ import 'types.dart';
 ///**NOTE for iOS**: available from iOS 11.0+.
 class CookieManager {
   static CookieManager _instance;
-  static const MethodChannel _channel = const MethodChannel('com.pichillilorenzo/flutter_inappwebview_cookiemanager');
+  static const MethodChannel _channel = const MethodChannel(
+      'com.pichillilorenzo/flutter_inappwebview_cookiemanager');
 
   ///Gets the cookie manager shared instance.
   static CookieManager instance() {
@@ -23,21 +24,22 @@ class CookieManager {
     return _instance;
   }
 
-  static Future<dynamic> _handleMethod(MethodCall call) async {
-  }
+  static Future<dynamic> _handleMethod(MethodCall call) async {}
 
   ///Sets a cookie for the given [url]. Any existing cookie with the same [host], [path] and [name] will be replaced with the new cookie. The cookie being set will be ignored if it is expired.
   ///
   ///The default value of [path] is `"/"`.
   ///If [domain] is `null`, its default value will be the domain name of [url].
-  Future<void> setCookie({@required String url, @required String name, @required String value,
+  Future<void> setCookie(
+      {@required String url,
+      @required String name,
+      @required String value,
       String domain,
       String path = "/",
       int expiresDate,
       int maxAge,
-        bool isSecure }) async {
-    if (domain == null)
-      domain = _getDomainName(url);
+      bool isSecure}) async {
+    if (domain == null) domain = _getDomainName(url);
 
     assert(url != null && url.isNotEmpty);
     assert(name != null && name.isNotEmpty);
@@ -64,17 +66,20 @@ class CookieManager {
 
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('url', () => url);
-    List<dynamic> cookieListMap = await _channel.invokeMethod('getCookies', args);
+    List<dynamic> cookieListMap =
+        await _channel.invokeMethod('getCookies', args);
     cookieListMap = cookieListMap.cast<Map<dynamic, dynamic>>();
     List<Cookie> cookies = [];
-    for(var i = 0; i < cookieListMap.length; i++) {
-      cookies.add(Cookie(name: cookieListMap[i]["name"], value: cookieListMap[i]["value"]));
+    for (var i = 0; i < cookieListMap.length; i++) {
+      cookies.add(Cookie(
+          name: cookieListMap[i]["name"], value: cookieListMap[i]["value"]));
     }
     return cookies;
   }
 
   ///Gets a cookie by its [name] for the given [url].
-  Future<Cookie> getCookie({@required String url, @required String name}) async {
+  Future<Cookie> getCookie(
+      {@required String url, @required String name}) async {
     assert(url != null && url.isNotEmpty);
     assert(name != null && name.isNotEmpty);
 
@@ -82,7 +87,7 @@ class CookieManager {
     args.putIfAbsent('url', () => url);
     List<dynamic> cookies = await _channel.invokeMethod('getCookies', args);
     cookies = cookies.cast<Map<dynamic, dynamic>>();
-    for(var i = 0; i < cookies.length; i++) {
+    for (var i = 0; i < cookies.length; i++) {
       cookies[i] = cookies[i].cast<String, dynamic>();
       if (cookies[i]["name"] == name)
         return Cookie(name: cookies[i]["name"], value: cookies[i]["value"]);
@@ -94,9 +99,12 @@ class CookieManager {
   ///
   ///The default value of [path] is `"/"`.
   ///If [domain] is `null` or empty, its default value will be the domain name of [url].
-  Future<void> deleteCookie({@required String url, @required String name, String domain = "", String path = "/"}) async {
-    if (domain == null || domain.isEmpty)
-      domain = _getDomainName(url);
+  Future<void> deleteCookie(
+      {@required String url,
+      @required String name,
+      String domain = "",
+      String path = "/"}) async {
+    if (domain == null || domain.isEmpty) domain = _getDomainName(url);
 
     assert(url != null && url.isNotEmpty);
     assert(name != null && name.isNotEmpty);
@@ -115,9 +123,9 @@ class CookieManager {
   ///
   ///The default value of [path] is `"/"`.
   ///If [domain] is `null` or empty, its default value will be the domain name of [url].
-  Future<void> deleteCookies({@required String url, String domain = "", String path = "/"}) async {
-    if (domain == null || domain.isEmpty)
-      domain = _getDomainName(url);
+  Future<void> deleteCookies(
+      {@required String url, String domain = "", String path = "/"}) async {
+    if (domain == null || domain.isEmpty) domain = _getDomainName(url);
 
     assert(url != null && url.isNotEmpty);
     assert(domain != null && url.isNotEmpty);
@@ -139,8 +147,7 @@ class CookieManager {
   String _getDomainName(String url) {
     Uri uri = Uri.parse(url);
     String domain = uri.host;
-    if (domain == null)
-      return "";
+    if (domain == null) return "";
     return domain.startsWith("www.") ? domain.substring(4) : domain;
   }
 }

lib/src/http_auth_credentials_database.dart

@@ -11,7 +11,8 @@ import 'package:flutter/services.dart';
 ///doesn't offer the same functionalities as iOS `URLCredentialStorage`.
 class HttpAuthCredentialDatabase {
   static HttpAuthCredentialDatabase _instance;
-  static const MethodChannel _channel = const MethodChannel('com.pichillilorenzo/flutter_inappwebview_credential_database');
+  static const MethodChannel _channel = const MethodChannel(
+      'com.pichillilorenzo/flutter_inappwebview_credential_database');
 
   ///Gets the database shared instance.
   static HttpAuthCredentialDatabase instance() {
@@ -24,44 +25,57 @@ class HttpAuthCredentialDatabase {
     return _instance;
   }
 
-  static Future<dynamic> _handleMethod(MethodCall call) async {
-  }
+  static Future<dynamic> _handleMethod(MethodCall call) async {}
 
   ///Gets a map list of all HTTP auth credentials saved.
   ///Each map contains the key `protectionSpace` of type [ProtectionSpace]
   ///and the key `credentials` of type `List<HttpAuthCredential>` that contains all the HTTP auth credentials saved for that `protectionSpace`.
   Future<List<Map<String, dynamic>>> getAllAuthCredentials() async {
     Map<String, dynamic> args = <String, dynamic>{};
-    List<dynamic> allCredentials = await _channel.invokeMethod('getAllAuthCredentials', args);
+    List<dynamic> allCredentials =
+        await _channel.invokeMethod('getAllAuthCredentials', args);
     List<Map<String, dynamic>> result = [];
     for (Map<dynamic, dynamic> map in allCredentials) {
       Map<dynamic, dynamic> protectionSpace = map["protectionSpace"];
       List<dynamic> credentials = map["credentials"];
       result.add({
-        "protectionSpace": ProtectionSpace(host: protectionSpace["host"], protocol: protectionSpace["protocol"], realm: protectionSpace["realm"], port: protectionSpace["port"]),
-        "credentials": credentials.map((credential) => HttpAuthCredential(username: credential["username"], password: credential["password"])).toList()
+        "protectionSpace": ProtectionSpace(
+            host: protectionSpace["host"],
+            protocol: protectionSpace["protocol"],
+            realm: protectionSpace["realm"],
+            port: protectionSpace["port"]),
+        "credentials": credentials
+            .map((credential) => HttpAuthCredential(
+                username: credential["username"],
+                password: credential["password"]))
+            .toList()
       });
     }
     return result;
   }
 
   ///Gets all the HTTP auth credentials saved for that [protectionSpace].
-  Future<List<HttpAuthCredential>> getHttpAuthCredentials({@required ProtectionSpace protectionSpace}) async {
+  Future<List<HttpAuthCredential>> getHttpAuthCredentials(
+      {@required ProtectionSpace protectionSpace}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);
     args.putIfAbsent("realm", () => protectionSpace.realm);
     args.putIfAbsent("port", () => protectionSpace.port);
-    List<dynamic> credentialList = await _channel.invokeMethod('getHttpAuthCredentials', args);
+    List<dynamic> credentialList =
+        await _channel.invokeMethod('getHttpAuthCredentials', args);
     List<HttpAuthCredential> credentials = [];
     for (Map<dynamic, dynamic> credential in credentialList) {
-      credentials.add(HttpAuthCredential(username: credential["username"], password: credential["password"]));
+      credentials.add(HttpAuthCredential(
+          username: credential["username"], password: credential["password"]));
     }
     return credentials;
   }
 
   ///Saves an HTTP auth [credential] for that [protectionSpace].
-  Future<void> setHttpAuthCredential({@required ProtectionSpace protectionSpace, @required HttpAuthCredential credential}) async {
+  Future<void> setHttpAuthCredential(
+      {@required ProtectionSpace protectionSpace,
+      @required HttpAuthCredential credential}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);
@@ -73,7 +87,9 @@ class HttpAuthCredentialDatabase {
   }
 
   ///Removes an HTTP auth [credential] for that [protectionSpace].
-  Future<void> removeHttpAuthCredential({@required ProtectionSpace protectionSpace, @required HttpAuthCredential credential}) async {
+  Future<void> removeHttpAuthCredential(
+      {@required ProtectionSpace protectionSpace,
+      @required HttpAuthCredential credential}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);
@@ -85,7 +101,8 @@ class HttpAuthCredentialDatabase {
   }
 
   ///Removes all the HTTP auth credentials saved for that [protectionSpace].
-  Future<void> removeHttpAuthCredentials({@required ProtectionSpace protectionSpace}) async {
+  Future<void> removeHttpAuthCredentials(
+      {@required ProtectionSpace protectionSpace}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);

lib/src/in_app_browser.dart

@@ -14,23 +14,25 @@ import 'in_app_webview.dart' show InAppWebViewController;
 ///
 ///This class uses the native WebView of the platform.
 class InAppBrowser {
-
   String uuid;
-  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap = HashMap<String, JavaScriptHandlerCallback>();
+  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap =
+      HashMap<String, JavaScriptHandlerCallback>();
   bool _isOpened = false;
+
   /// WebView Controller that can be used to access the [InAppWebView] API.
   InAppWebViewController webViewController;
 
   ///
-  InAppBrowser () {
+  InAppBrowser() {
     uuid = uuidGenerator.v4();
     ChannelManager.addListener(uuid, handleMethod);
     _isOpened = false;
-    webViewController = new InAppWebViewController.fromInAppBrowser(uuid, ChannelManager.channel, this);
+    webViewController = new InAppWebViewController.fromInAppBrowser(
+        uuid, ChannelManager.channel, this);
   }
 
   Future<dynamic> handleMethod(MethodCall call) async {
-    switch(call.method) {
+    switch (call.method) {
       case "onBrowserCreated":
         this._isOpened = true;
         onBrowserCreated();
@@ -51,21 +53,29 @@ class InAppBrowser {
   ///[headers]: The additional headers to be used in the HTTP request for this URL, specified as a map from name to value.
   ///
   ///[options]: Options for the [InAppBrowser].
-  Future<void> open({String url = "about:blank", Map<String, String> headers = const {}, InAppBrowserClassOptions options}) async {
+  Future<void> open(
+      {String url = "about:blank",
+      Map<String, String> headers = const {},
+      InAppBrowserClassOptions options}) async {
     assert(url != null && url.isNotEmpty);
     this.throwIsAlreadyOpened(message: 'Cannot open $url!');
 
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
-    }
-    else if (Platform.isIOS) {
+      optionsMap.addAll(options
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -113,21 +123,29 @@ class InAppBrowser {
   ///[headers]: The additional headers to be used in the HTTP request for this URL, specified as a map from name to value.
   ///
   ///[options]: Options for the [InAppBrowser].
-  Future<void> openFile({@required String assetFilePath, Map<String, String> headers = const {}, InAppBrowserClassOptions options}) async {
+  Future<void> openFile(
+      {@required String assetFilePath,
+      Map<String, String> headers = const {},
+      InAppBrowserClassOptions options}) async {
     assert(assetFilePath != null && assetFilePath.isNotEmpty);
     this.throwIsAlreadyOpened(message: 'Cannot open $assetFilePath!');
 
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
-    }
-    else if (Platform.isIOS) {
+      optionsMap.addAll(options
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -149,20 +167,30 @@ class InAppBrowser {
   ///The [encoding] parameter specifies the encoding of the data.
   ///
   ///The [options] parameter specifies the options for the [InAppBrowser].
-  Future<void> openData({@required String data, String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank", InAppBrowserClassOptions options}) async {
+  Future<void> openData(
+      {@required String data,
+      String mimeType = "text/html",
+      String encoding = "utf8",
+      String baseUrl = "about:blank",
+      InAppBrowserClassOptions options}) async {
     assert(data != null);
 
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
-    }
-    else if (Platform.isIOS) {
+      optionsMap.addAll(options
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -233,14 +261,19 @@ class InAppBrowser {
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
-    }
-    else if (Platform.isIOS) {
+      optionsMap.addAll(options
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -257,19 +290,27 @@ class InAppBrowser {
     args.putIfAbsent('uuid', () => uuid);
     args.putIfAbsent('optionsType', () => "InAppBrowserOptions");
 
-    InAppBrowserClassOptions inAppBrowserClassOptions = InAppBrowserClassOptions();
-    Map<dynamic, dynamic> options = await ChannelManager.channel.invokeMethod('getOptions', args);
+    InAppBrowserClassOptions inAppBrowserClassOptions =
+        InAppBrowserClassOptions();
+    Map<dynamic, dynamic> options =
+        await ChannelManager.channel.invokeMethod('getOptions', args);
     if (options != null) {
       options = options.cast<String, dynamic>();
-      inAppBrowserClassOptions.inAppBrowserOptions = InAppBrowserOptions.fromMap(options);
-      inAppBrowserClassOptions.inAppWebViewWidgetOptions.inAppWebViewOptions = InAppWebViewOptions.fromMap(options);
+      inAppBrowserClassOptions.inAppBrowserOptions =
+          InAppBrowserOptions.fromMap(options);
+      inAppBrowserClassOptions.inAppWebViewWidgetOptions.inAppWebViewOptions =
+          InAppWebViewOptions.fromMap(options);
       if (Platform.isAndroid) {
-        inAppBrowserClassOptions.androidInAppBrowserOptions = AndroidInAppBrowserOptions.fromMap(options);
-        inAppBrowserClassOptions.inAppWebViewWidgetOptions.androidInAppWebViewOptions = AndroidInAppWebViewOptions.fromMap(options);
-      }
-      else if (Platform.isIOS) {
-        inAppBrowserClassOptions.iosInAppBrowserOptions = IosInAppBrowserOptions.fromMap(options);
-        inAppBrowserClassOptions.inAppWebViewWidgetOptions.iosInAppWebViewOptions = IosInAppWebViewOptions.fromMap(options);
+        inAppBrowserClassOptions.androidInAppBrowserOptions =
+            AndroidInAppBrowserOptions.fromMap(options);
+        inAppBrowserClassOptions
+                .inAppWebViewWidgetOptions.androidInAppWebViewOptions =
+            AndroidInAppWebViewOptions.fromMap(options);
+      } else if (Platform.isIOS) {
+        inAppBrowserClassOptions.iosInAppBrowserOptions =
+            IosInAppBrowserOptions.fromMap(options);
+        inAppBrowserClassOptions.inAppWebViewWidgetOptions
+            .iosInAppWebViewOptions = IosInAppWebViewOptions.fromMap(options);
       }
     }
 
@@ -282,29 +323,19 @@ class InAppBrowser {
   }
 
   ///Event fired when the [InAppBrowser] is created.
-  void onBrowserCreated() {
-
-  }
+  void onBrowserCreated() {}
 
   ///Event fired when the [InAppBrowser] window is closed.
-  void onExit() {
-
-  }
+  void onExit() {}
 
   ///Event fired when the [InAppBrowser] starts to load an [url].
-  void onLoadStart(String url) {
-
-  }
+  void onLoadStart(String url) {}
 
   ///Event fired when the [InAppBrowser] finishes loading an [url].
-  void onLoadStop(String url) {
-
-  }
+  void onLoadStop(String url) {}
 
   ///Event fired when the [InAppBrowser] encounters an error loading an [url].
-  void onLoadError(String url, int code, String message) {
-
-  }
+  void onLoadError(String url, int code, String message) {}
 
   ///Event fired when the [InAppBrowser] main page receives an HTTP error.
   ///
@@ -315,51 +346,37 @@ class InAppBrowser {
   ///[description] represents the description of the HTTP error. On iOS, it is always an empty string.
   ///
   ///**NOTE**: available on Android 23+.
-  void onLoadHttpError(String url, int statusCode, String description) {
-
-  }
+  void onLoadHttpError(String url, int statusCode, String description) {}
 
   ///Event fired when the current [progress] (range 0-100) of loading a page is changed.
-  void onProgressChanged(int progress) {
-
-  }
+  void onProgressChanged(int progress) {}
 
   ///Event fired when the [InAppBrowser] webview receives a [ConsoleMessage].
-  void onConsoleMessage(ConsoleMessage consoleMessage) {
-
-  }
+  void onConsoleMessage(ConsoleMessage consoleMessage) {}
 
   ///Give the host application a chance to take control when a URL is about to be loaded in the current WebView.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldOverrideUrlLoading] option to `true`.
-  void shouldOverrideUrlLoading(String url) {
-
-  }
+  void shouldOverrideUrlLoading(String url) {}
 
   ///Event fired when the [InAppBrowser] webview loads a resource.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnLoadResource] and [InAppWebViewOptions.javaScriptEnabled] options to `true`.
-  void onLoadResource(LoadedResource resource) {
-
-  }
+  void onLoadResource(LoadedResource resource) {}
 
   ///Event fired when the [InAppBrowser] webview scrolls.
   ///
   ///[x] represents the current horizontal scroll origin in pixels.
   ///
   ///[y] represents the current vertical scroll origin in pixels.
-  void onScrollChanged(int x, int y) {
-
-  }
+  void onScrollChanged(int x, int y) {}
 
   ///Event fired when [InAppBrowser] recognizes and starts a downloadable file.
   ///
   ///[url] represents the url of the file.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnDownloadStart] option to `true`.
-  void onDownloadStart(String url) {
-
-  }
+  void onDownloadStart(String url) {}
 
   ///Event fired when the [InAppBrowser] webview finds the `custom-scheme` while loading a resource. Here you can handle the url request and return a [CustomSchemeResponse] to load a specific resource encoded to `base64`.
   ///
@@ -367,18 +384,15 @@ class InAppBrowser {
   ///
   ///[url] represents the url of the request.
   // ignore: missing_return
-  Future<CustomSchemeResponse> onLoadResourceCustomScheme(String scheme, String url) {
-
-  }
+  Future<CustomSchemeResponse> onLoadResourceCustomScheme(
+      String scheme, String url) {}
 
   ///Event fired when the [InAppBrowser] webview tries to open a link with `target="_blank"`.
   ///
   ///[url] represents the url of the link.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnTargetBlank] option to `true`.
-  void onTargetBlank(String url) {
-
-  }
+  void onTargetBlank(String url) {}
 
   ///Event that notifies the host application that web content from the specified origin is attempting to use the Geolocation API, but no permission state is currently set for that origin.
   ///Note that for applications targeting Android N and later SDKs (API level > `Build.VERSION_CODES.M`) this method is only called for requests originating from secure origins such as https.
@@ -388,27 +402,22 @@ class InAppBrowser {
   ///
   ///**NOTE**: available only on Android.
   // ignore: missing_return
-  Future<GeolocationPermissionShowPromptResponse> onGeolocationPermissionsShowPrompt (String origin) {
-
-  }
+  Future<GeolocationPermissionShowPromptResponse>
+      onGeolocationPermissionsShowPrompt(String origin) {}
 
   ///Event fired when javascript calls the `alert()` method to display an alert dialog.
   ///If [JsAlertResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
   // ignore: missing_return
-  Future<JsAlertResponse> onJsAlert(String message) {
-
-  }
+  Future<JsAlertResponse> onJsAlert(String message) {}
 
   ///Event fired when javascript calls the `confirm()` method to display a confirm dialog.
   ///If [JsConfirmResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
   // ignore: missing_return
-  Future<JsConfirmResponse> onJsConfirm(String message) {
-
-  }
+  Future<JsConfirmResponse> onJsConfirm(String message) {}
 
   ///Event fired when javascript calls the `prompt()` method to display a prompt dialog.
   ///If [JsPromptResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
@@ -416,9 +425,7 @@ class InAppBrowser {
   ///[message] represents the message to be displayed in the alert dialog.
   ///[defaultValue] represents the default value displayed in the prompt dialog.
   // ignore: missing_return
-  Future<JsPromptResponse> onJsPrompt(String message, String defaultValue) {
-
-  }
+  Future<JsPromptResponse> onJsPrompt(String message, String defaultValue) {}
 
   ///Event fired when the WebView notifies that a loading URL has been flagged by Safe Browsing.
   ///The default behavior is to show an interstitial to the user, with the reporting checkbox visible.
@@ -429,37 +436,33 @@ class InAppBrowser {
   ///
   ///**NOTE**: available only on Android.
   // ignore: missing_return
-  Future<SafeBrowsingResponse> onSafeBrowsingHit(String url, SafeBrowsingThreat threatType) {
-
-  }
+  Future<SafeBrowsingResponse> onSafeBrowsingHit(
+      String url, SafeBrowsingThreat threatType) {}
 
   ///Event fired when the WebView received an HTTP authentication request. The default behavior is to cancel the request.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [HttpAuthChallenge].
   // ignore: missing_return
-  Future<HttpAuthResponse> onReceivedHttpAuthRequest(HttpAuthChallenge challenge) {
-
-  }
+  Future<HttpAuthResponse> onReceivedHttpAuthRequest(
+      HttpAuthChallenge challenge) {}
 
   ///Event fired when the WebView need to perform server trust authentication (certificate validation).
   ///The host application must return either [ServerTrustAuthResponse] instance with [ServerTrustAuthResponseAction.CANCEL] or [ServerTrustAuthResponseAction.PROCEED].
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ServerTrustChallenge].
   // ignore: missing_return
-  Future<ServerTrustAuthResponse> onReceivedServerTrustAuthRequest(ServerTrustChallenge challenge) {
+  Future<ServerTrustAuthResponse> onReceivedServerTrustAuthRequest(
+      ServerTrustChallenge challenge) {}
 
-  }
-
-  ///Notify the host application to handle a SSL client certificate request.
+  ///Notify the host application to handle an SSL client certificate request.
   ///Webview stores the response in memory (for the life of the application) if [ClientCertResponseAction.PROCEED] or [ClientCertResponseAction.CANCEL]
   ///is called and does not call [onReceivedClientCertRequest] again for the same host and port pair.
   ///Note that, multiple layers in chromium network stack might be caching the responses.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ClientCertChallenge].
   // ignore: missing_return
-  Future<ClientCertResponse> onReceivedClientCertRequest(ClientCertChallenge challenge) {
-
-  }
+  Future<ClientCertResponse> onReceivedClientCertRequest(
+      ClientCertChallenge challenge) {}
 
   ///Event fired as find-on-page operations progress.
   ///The listener may be notified multiple times while the operation is underway, and the numberOfMatches value should not be considered final unless [isDoneCounting] is true.
@@ -469,9 +472,8 @@ class InAppBrowser {
   ///[numberOfMatches] represents how many matches have been found.
   ///
   ///[isDoneCounting] whether the find operation has actually completed.
-  void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, bool isDoneCounting) {
-
-  }
+  void onFindResultReceived(
+      int activeMatchOrdinal, int numberOfMatches, bool isDoneCounting) {}
 
   ///Event fired when an `XMLHttpRequest` is sent to a server.
   ///It gives the host application a chance to take control over the request before sending it.
@@ -480,9 +482,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptAjaxRequest] option to `true`.
   // ignore: missing_return
-  Future<AjaxRequest> shouldInterceptAjaxRequest(AjaxRequest ajaxRequest) {
-
-  }
+  Future<AjaxRequest> shouldInterceptAjaxRequest(AjaxRequest ajaxRequest) {}
 
   ///Event fired whenever the `readyState` attribute of an `XMLHttpRequest` changes.
   ///It gives the host application a chance to abort the request.
@@ -491,9 +491,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptAjaxRequest] option to `true`.
   // ignore: missing_return
-  Future<AjaxRequestAction> onAjaxReadyStateChange(AjaxRequest ajaxRequest) {
-
-  }
+  Future<AjaxRequestAction> onAjaxReadyStateChange(AjaxRequest ajaxRequest) {}
 
   ///Event fired as an `XMLHttpRequest` progress.
   ///It gives the host application a chance to abort the request.
@@ -502,9 +500,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptAjaxRequest] option to `true`.
   // ignore: missing_return
-  Future<AjaxRequestAction> onAjaxProgress(AjaxRequest ajaxRequest) {
-
-  }
+  Future<AjaxRequestAction> onAjaxProgress(AjaxRequest ajaxRequest) {}
 
   ///Event fired when a request is sent to a server through [Fetch API](https://developer.mozilla.org/it/docs/Web/API/Fetch_API).
   ///It gives the host application a chance to take control over the request before sending it.
@@ -513,9 +509,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptFetchRequest] option to `true`.
   // ignore: missing_return
-  Future<FetchRequest> shouldInterceptFetchRequest(FetchRequest fetchRequest) {
-
-  }
+  Future<FetchRequest> shouldInterceptFetchRequest(FetchRequest fetchRequest) {}
 
   ///Event fired when the navigation state of the WebView changes throught the usage of
   ///javascript **[History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API)** functions (`pushState()`, `replaceState()`) and `onpopstate` event.
@@ -523,9 +517,7 @@ class InAppBrowser {
   ///Also, the event is fired when the javascript `window.location` changes without reloading the webview (for example appending or modifying an hash to the url).
   ///
   ///[url] represents the new url.
-  void onNavigationStateChange(String url) {
-
-  }
+  void onNavigationStateChange(String url) {}
 
   ///Event fired when the WebView is requesting permission to access the specified resources and the permission currently isn't granted or denied.
   ///
@@ -534,20 +526,23 @@ class InAppBrowser {
   ///[resources] represents the array of resources the web content wants to access.
   ///
   ///**NOTE**: available only on Android 23+.
-  Future<PermissionRequestResponse> onPermissionRequest(String origin, List<String> resources) {
-
-  }
+  // ignore: missing_return
+  Future<PermissionRequestResponse> onPermissionRequest(
+      String origin, List<String> resources) {}
 
   void throwIsAlreadyOpened({String message = ''}) {
     if (this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is already opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is already opened.'
+      ]);
     }
   }
 
   void throwIsNotOpened({String message = ''}) {
     if (!this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is not opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is not opened.'
+      ]);
     }
   }
-
 }

lib/src/in_app_localhost_server.dart

@@ -8,7 +8,6 @@ import 'package:mime/mime.dart';
 ///
 ///This class allows you to create a simple server on `http://localhost:[port]/` in order to be able to load your assets file on a server. The default [port] value is `8080`.
 class InAppLocalhostServer {
-
   HttpServer _server;
   int _port = 8080;
 
@@ -28,7 +27,6 @@ class InAppLocalhostServer {
   ///```
   ///The `NSAllowsLocalNetworking` key is available since **iOS 10**.
   Future<void> start() async {
-
     if (this._server != null) {
       throw Exception('Server already started on http://localhost:$_port');
     }
@@ -48,8 +46,7 @@ class InAppLocalhostServer {
           path += (path.endsWith('/')) ? 'index.html' : '';
 
           try {
-            body = (await rootBundle.load(path))
-                .buffer.asUint8List();
+            body = (await rootBundle.load(path)).buffer.asUint8List();
           } catch (e) {
             print(e.toString());
             request.response.close();
@@ -57,14 +54,17 @@ class InAppLocalhostServer {
           }
 
           var contentType = ['text', 'html'];
-          if (!request.requestedUri.path.endsWith('/') && request.requestedUri.pathSegments.isNotEmpty) {
-            var mimeType = lookupMimeType(request.requestedUri.path, headerBytes: body);
+          if (!request.requestedUri.path.endsWith('/') &&
+              request.requestedUri.pathSegments.isNotEmpty) {
+            var mimeType =
+                lookupMimeType(request.requestedUri.path, headerBytes: body);
             if (mimeType != null) {
               contentType = mimeType.split('/');
             }
           }
 
-          request.response.headers.contentType = new ContentType(contentType[0], contentType[1], charset: 'utf-8');
+          request.response.headers.contentType =
+              new ContentType(contentType[0], contentType[1], charset: 'utf-8');
           request.response.add(body);
           request.response.close();
         });
@@ -84,5 +84,4 @@ class InAppLocalhostServer {
       this._server = null;
     }
   }
-
 }

lib/src/in_app_webview.dart

@@ -16,24 +16,31 @@ import 'types.dart';
 import 'in_app_browser.dart';
 import 'webview_options.dart';
 
-const javaScriptHandlerForbiddenNames = ["onLoadResource", "shouldInterceptAjaxRequest", "onAjaxReadyStateChange", "onAjaxProgress", "shouldInterceptFetchRequest"];
+const javaScriptHandlerForbiddenNames = [
+  "onLoadResource",
+  "shouldInterceptAjaxRequest",
+  "onAjaxReadyStateChange",
+  "onAjaxProgress",
+  "shouldInterceptFetchRequest"
+];
 
 ///InAppWebView Widget class.
 ///
 ///Flutter Widget for adding an **inline native WebView** integrated in the flutter widget tree.
 class InAppWebView extends StatefulWidget {
-
   ///Event fired when the [InAppWebView] is created.
   final void Function(InAppWebViewController controller) onWebViewCreated;
 
   ///Event fired when the [InAppWebView] starts to load an [url].
-  final void Function(InAppWebViewController controller, String url) onLoadStart;
+  final void Function(InAppWebViewController controller, String url)
+      onLoadStart;
 
   ///Event fired when the [InAppWebView] finishes loading an [url].
   final void Function(InAppWebViewController controller, String url) onLoadStop;
 
   ///Event fired when the [InAppWebView] encounters an error loading an [url].
-  final void Function(InAppWebViewController controller, String url, int code, String message) onLoadError;
+  final void Function(InAppWebViewController controller, String url, int code,
+      String message) onLoadError;
 
   ///Event fired when the [InAppWebView] main page receives an HTTP error.
   ///
@@ -44,51 +51,63 @@ class InAppWebView extends StatefulWidget {
   ///[description] represents the description of the HTTP error. On iOS, it is always an empty string.
   ///
   ///**NOTE**: available on Android 23+.
-  final void Function(InAppWebViewController controller, String url, int statusCode, String description) onLoadHttpError;
+  final void Function(InAppWebViewController controller, String url,
+      int statusCode, String description) onLoadHttpError;
 
   ///Event fired when the current [progress] of loading a page is changed.
-  final void Function(InAppWebViewController controller, int progress) onProgressChanged;
+  final void Function(InAppWebViewController controller, int progress)
+      onProgressChanged;
 
   ///Event fired when the [InAppWebView] receives a [ConsoleMessage].
-  final void Function(InAppWebViewController controller, ConsoleMessage consoleMessage) onConsoleMessage;
+  final void Function(
+          InAppWebViewController controller, ConsoleMessage consoleMessage)
+      onConsoleMessage;
 
   ///Give the host application a chance to take control when a URL is about to be loaded in the current WebView.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldOverrideUrlLoading] option to `true`.
-  final void Function(InAppWebViewController controller, String url) shouldOverrideUrlLoading;
+  final void Function(InAppWebViewController controller, String url)
+      shouldOverrideUrlLoading;
 
   ///Event fired when the [InAppWebView] loads a resource.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnLoadResource] and [InAppWebViewOptions.javaScriptEnabled] options to `true`.
-  final void Function(InAppWebViewController controller, LoadedResource resource) onLoadResource;
+  final void Function(
+          InAppWebViewController controller, LoadedResource resource)
+      onLoadResource;
 
   ///Event fired when the [InAppWebView] scrolls.
   ///
   ///[x] represents the current horizontal scroll origin in pixels.
   ///
   ///[y] represents the current vertical scroll origin in pixels.
-  final void Function(InAppWebViewController controller, int x, int y) onScrollChanged;
+  final void Function(InAppWebViewController controller, int x, int y)
+      onScrollChanged;
 
   ///Event fired when [InAppWebView] recognizes and starts a downloadable file.
   ///
   ///[url] represents the url of the file.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnDownloadStart] option to `true`.
-  final void Function(InAppWebViewController controller, String url) onDownloadStart;
+  final void Function(InAppWebViewController controller, String url)
+      onDownloadStart;
 
   ///Event fired when the [InAppWebView] finds the `custom-scheme` while loading a resource. Here you can handle the url request and return a [CustomSchemeResponse] to load a specific resource encoded to `base64`.
   ///
   ///[scheme] represents the scheme of the url.
   ///
   ///[url] represents the url of the request.
-  final Future<CustomSchemeResponse> Function(InAppWebViewController controller, String scheme, String url) onLoadResourceCustomScheme;
+  final Future<CustomSchemeResponse> Function(
+          InAppWebViewController controller, String scheme, String url)
+      onLoadResourceCustomScheme;
 
   ///Event fired when the [InAppWebView] tries to open a link with `target="_blank"`.
   ///
   ///[url] represents the url of the link.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnTargetBlank] option to `true`.
-  final void Function(InAppWebViewController controller, String url) onTargetBlank;
+  final void Function(InAppWebViewController controller, String url)
+      onTargetBlank;
 
   ///Event that notifies the host application that web content from the specified origin is attempting to use the Geolocation API, but no permission state is currently set for that origin.
   ///Note that for applications targeting Android N and later SDKs (API level > `Build.VERSION_CODES.M`) this method is only called for requests originating from secure origins such as https.
@@ -97,19 +116,23 @@ class InAppWebView extends StatefulWidget {
   ///[origin] represents the origin of the web content attempting to use the Geolocation API.
   ///
   ///**NOTE**: available only on Android.
-  final Future<GeolocationPermissionShowPromptResponse> Function(InAppWebViewController controller, String origin) onGeolocationPermissionsShowPrompt;
+  final Future<GeolocationPermissionShowPromptResponse> Function(
+          InAppWebViewController controller, String origin)
+      onGeolocationPermissionsShowPrompt;
 
   ///Event fired when javascript calls the `alert()` method to display an alert dialog.
   ///If [JsAlertResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
-  final Future<JsAlertResponse> Function(InAppWebViewController controller, String message) onJsAlert;
+  final Future<JsAlertResponse> Function(
+      InAppWebViewController controller, String message) onJsAlert;
 
   ///Event fired when javascript calls the `confirm()` method to display a confirm dialog.
   ///If [JsConfirmResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
-  final Future<JsConfirmResponse> Function(InAppWebViewController controller, String message) onJsConfirm;
+  final Future<JsConfirmResponse> Function(
+      InAppWebViewController controller, String message) onJsConfirm;
 
   ///Event fired when javascript calls the `prompt()` method to display a prompt dialog.
   ///If [JsPromptResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
@@ -117,7 +140,8 @@ class InAppWebView extends StatefulWidget {
   ///[message] represents the message to be displayed in the alert dialog.
   ///
   ///[defaultValue] represents the default value displayed in the prompt dialog.
-  final Future<JsPromptResponse> Function(InAppWebViewController controller, String message, String defaultValue) onJsPrompt;
+  final Future<JsPromptResponse> Function(InAppWebViewController controller,
+      String message, String defaultValue) onJsPrompt;
 
   ///Event fired when the webview notifies that a loading URL has been flagged by Safe Browsing.
   ///The default behavior is to show an interstitial to the user, with the reporting checkbox visible.
@@ -127,26 +151,33 @@ class InAppWebView extends StatefulWidget {
   ///[threatType] represents the reason the resource was caught by Safe Browsing, corresponding to a [SafeBrowsingThreat].
   ///
   ///**NOTE**: available only on Android.
-  final Future<SafeBrowsingResponse> Function(InAppWebViewController controller, String url, SafeBrowsingThreat threatType) onSafeBrowsingHit;
+  final Future<SafeBrowsingResponse> Function(InAppWebViewController controller,
+      String url, SafeBrowsingThreat threatType) onSafeBrowsingHit;
 
   ///Event fired when the WebView received an HTTP authentication request. The default behavior is to cancel the request.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [HttpAuthChallenge].
-  final Future<HttpAuthResponse> Function(InAppWebViewController controller, HttpAuthChallenge challenge) onReceivedHttpAuthRequest;
+  final Future<HttpAuthResponse> Function(
+          InAppWebViewController controller, HttpAuthChallenge challenge)
+      onReceivedHttpAuthRequest;
 
   ///Event fired when the WebView need to perform server trust authentication (certificate validation).
   ///The host application must return either [ServerTrustAuthResponse] instance with [ServerTrustAuthResponseAction.CANCEL] or [ServerTrustAuthResponseAction.PROCEED].
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ServerTrustChallenge].
-  final Future<ServerTrustAuthResponse> Function(InAppWebViewController controller, ServerTrustChallenge challenge) onReceivedServerTrustAuthRequest;
+  final Future<ServerTrustAuthResponse> Function(
+          InAppWebViewController controller, ServerTrustChallenge challenge)
+      onReceivedServerTrustAuthRequest;
 
-  ///Notify the host application to handle a SSL client certificate request.
+  ///Notify the host application to handle an SSL client certificate request.
   ///Webview stores the response in memory (for the life of the application) if [ClientCertResponseAction.PROCEED] or [ClientCertResponseAction.CANCEL]
   ///is called and does not call [onReceivedClientCertRequest] again for the same host and port pair.
   ///Note that, multiple layers in chromium network stack might be caching the responses.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ClientCertChallenge].
-  final Future<ClientCertResponse> Function(InAppWebViewController controller, ClientCertChallenge challenge) onReceivedClientCertRequest;
+  final Future<ClientCertResponse> Function(
+          InAppWebViewController controller, ClientCertChallenge challenge)
+      onReceivedClientCertRequest;
 
   ///Event fired as find-on-page operations progress.
   ///The listener may be notified multiple times while the operation is underway, and the numberOfMatches value should not be considered final unless [isDoneCounting] is true.
@@ -156,7 +187,8 @@ class InAppWebView extends StatefulWidget {
   ///[numberOfMatches] represents how many matches have been found.
   ///
   ///[isDoneCounting] whether the find operation has actually completed.
-  final void Function(InAppWebViewController controller, int activeMatchOrdinal, int numberOfMatches, bool isDoneCounting) onFindResultReceived;
+  final void Function(InAppWebViewController controller, int activeMatchOrdinal,
+      int numberOfMatches, bool isDoneCounting) onFindResultReceived;
 
   ///Event fired when an `XMLHttpRequest` is sent to a server.
   ///It gives the host application a chance to take control over the request before sending it.
@@ -168,7 +200,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept ajax requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the ajax requests will be intercept for sure.
-  final Future<AjaxRequest> Function(InAppWebViewController controller, AjaxRequest ajaxRequest) shouldInterceptAjaxRequest;
+  final Future<AjaxRequest> Function(
+          InAppWebViewController controller, AjaxRequest ajaxRequest)
+      shouldInterceptAjaxRequest;
 
   ///Event fired whenever the `readyState` attribute of an `XMLHttpRequest` changes.
   ///It gives the host application a chance to abort the request.
@@ -180,7 +214,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept ajax requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the ajax requests will be intercept for sure.
-  final Future<AjaxRequestAction> Function(InAppWebViewController controller, AjaxRequest ajaxRequest) onAjaxReadyStateChange;
+  final Future<AjaxRequestAction> Function(
+          InAppWebViewController controller, AjaxRequest ajaxRequest)
+      onAjaxReadyStateChange;
 
   ///Event fired as an `XMLHttpRequest` progress.
   ///It gives the host application a chance to abort the request.
@@ -192,7 +228,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept ajax requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the ajax requests will be intercept for sure.
-  final Future<AjaxRequestAction> Function(InAppWebViewController controller, AjaxRequest ajaxRequest) onAjaxProgress;
+  final Future<AjaxRequestAction> Function(
+          InAppWebViewController controller, AjaxRequest ajaxRequest)
+      onAjaxProgress;
 
   ///Event fired when a request is sent to a server through [Fetch API](https://developer.mozilla.org/it/docs/Web/API/Fetch_API).
   ///It gives the host application a chance to take control over the request before sending it.
@@ -204,7 +242,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept fetch requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the fetch requests will be intercept for sure.
-  final Future<FetchRequest> Function(InAppWebViewController controller, FetchRequest fetchRequest) shouldInterceptFetchRequest;
+  final Future<FetchRequest> Function(
+          InAppWebViewController controller, FetchRequest fetchRequest)
+      shouldInterceptFetchRequest;
 
   ///Event fired when the navigation state of the [InAppWebView] changes throught the usage of
   ///javascript **[History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API)** functions (`pushState()`, `replaceState()`) and `onpopstate` event.
@@ -212,7 +252,8 @@ class InAppWebView extends StatefulWidget {
   ///Also, the event is fired when the javascript `window.location` changes without reloading the webview (for example appending or modifying an hash to the url).
   ///
   ///[url] represents the new url.
-  final void Function(InAppWebViewController controller, String url) onNavigationStateChange;
+  final void Function(InAppWebViewController controller, String url)
+      onNavigationStateChange;
 
   ///Event fired when the WebView is requesting permission to access the specified resources and the permission currently isn't granted or denied.
   ///
@@ -221,18 +262,26 @@ class InAppWebView extends StatefulWidget {
   ///[resources] represents the array of resources the web content wants to access.
   ///
   ///**NOTE**: available only on Android 23+.
-  final Future<PermissionRequestResponse> Function(InAppWebViewController controller, String origin, List<String> resources) onPermissionRequest;
+  final Future<PermissionRequestResponse> Function(
+      InAppWebViewController controller,
+      String origin,
+      List<String> resources) onPermissionRequest;
 
   ///Initial url that will be loaded.
   final String initialUrl;
+
   ///Initial asset file that will be loaded. See [InAppWebView.loadFile()] for explanation.
   final String initialFile;
+
   ///Initial [InAppWebViewInitialData] that will be loaded.
   final InAppWebViewInitialData initialData;
+
   ///Initial headers that will be used.
   final Map<String, String> initialHeaders;
+
   ///Initial options that will be used.
   final InAppWebViewWidgetOptions initialOptions;
+
   /// `gestureRecognizers` specifies which gestures should be consumed by the web view.
   /// It is possible for other gesture recognizers to be competing with the web view on pointer
   /// events, e.g if the web view is inside a [ListView] the [ListView] will want to handle
@@ -248,7 +297,7 @@ class InAppWebView extends StatefulWidget {
     this.initialFile,
     this.initialData,
     this.initialHeaders = const {},
-    this.initialOptions,
+    @required this.initialOptions,
     this.onWebViewCreated,
     this.onLoadStart,
     this.onLoadStop,
@@ -285,17 +334,19 @@ class InAppWebView extends StatefulWidget {
 }
 
 class _InAppWebViewState extends State<InAppWebView> {
-
   InAppWebViewController _controller;
 
   @override
   Widget build(BuildContext context) {
     Map<String, dynamic> initialOptions = {};
-    initialOptions.addAll(widget.initialOptions.inAppWebViewOptions?.toMap() ?? {});
+    initialOptions
+        .addAll(widget.initialOptions.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid)
-      initialOptions.addAll(widget.initialOptions.androidInAppWebViewOptions?.toMap() ?? {});
+      initialOptions.addAll(
+          widget.initialOptions.androidInAppWebViewOptions?.toMap() ?? {});
     else if (Platform.isIOS)
-      initialOptions.addAll(widget.initialOptions.iosInAppWebViewOptions?.toMap() ?? {});
+      initialOptions
+          .addAll(widget.initialOptions.iosInAppWebViewOptions?.toMap() ?? {});
 
     if (defaultTargetPlatform == TargetPlatform.android) {
       return AndroidView(
@@ -356,7 +407,7 @@ class _InAppWebViewState extends State<InAppWebView> {
   }
 
   @override
-  void dispose(){
+  void dispose() {
     super.dispose();
   }
 
@@ -373,10 +424,10 @@ class _InAppWebViewState extends State<InAppWebView> {
 /// An [InAppWebViewController] instance can be obtained by setting the [InAppWebView.onWebViewCreated]
 /// callback for an [InAppWebView] widget.
 class InAppWebViewController {
-
   InAppWebView _widget;
   MethodChannel _channel;
-  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap = HashMap<String, JavaScriptHandlerCallback>();
+  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap =
+      HashMap<String, JavaScriptHandlerCallback>();
   // ignore: unused_field
   bool _isOpened = false;
   // ignore: unused_field
@@ -384,35 +435,34 @@ class InAppWebViewController {
   String _inAppBrowserUuid;
   InAppBrowser _inAppBrowser;
 
-
   InAppWebViewController(int id, InAppWebView widget) {
     this._id = id;
-    this._channel = MethodChannel('com.pichillilorenzo/flutter_inappwebview_$id');
+    this._channel =
+        MethodChannel('com.pichillilorenzo/flutter_inappwebview_$id');
     this._channel.setMethodCallHandler(handleMethod);
     this._widget = widget;
   }
 
-  InAppWebViewController.fromInAppBrowser(String uuid, MethodChannel channel, InAppBrowser inAppBrowser) {
+  InAppWebViewController.fromInAppBrowser(
+      String uuid, MethodChannel channel, InAppBrowser inAppBrowser) {
     this._inAppBrowserUuid = uuid;
     this._channel = channel;
     this._inAppBrowser = inAppBrowser;
   }
 
   Future<dynamic> handleMethod(MethodCall call) async {
-    switch(call.method) {
+    switch (call.method) {
       case "onLoadStart":
         String url = call.arguments["url"];
         if (_widget != null && _widget.onLoadStart != null)
           _widget.onLoadStart(this, url);
-        else if (_inAppBrowser != null)
-          _inAppBrowser.onLoadStart(url);
+        else if (_inAppBrowser != null) _inAppBrowser.onLoadStart(url);
         break;
       case "onLoadStop":
         String url = call.arguments["url"];
         if (_widget != null && _widget.onLoadStop != null)
           _widget.onLoadStop(this, url);
-        else if (_inAppBrowser != null)
-          _inAppBrowser.onLoadStop(url);
+        else if (_inAppBrowser != null) _inAppBrowser.onLoadStop(url);
         break;
       case "onLoadError":
         String url = call.arguments["url"];
@@ -448,8 +498,10 @@ class InAppWebViewController {
         break;
       case "onConsoleMessage":
         String message = call.arguments["message"];
-        ConsoleMessageLevel messageLevel = ConsoleMessageLevel.fromValue(call.arguments["messageLevel"]);
-        ConsoleMessage consoleMessage = ConsoleMessage(message: message, messageLevel: messageLevel);
+        ConsoleMessageLevel messageLevel =
+            ConsoleMessageLevel.fromValue(call.arguments["messageLevel"]);
+        ConsoleMessage consoleMessage =
+            ConsoleMessage(message: message, messageLevel: messageLevel);
         if (_widget != null && _widget.onConsoleMessage != null)
           _widget.onConsoleMessage(this, consoleMessage);
         else if (_inAppBrowser != null)
@@ -460,31 +512,31 @@ class InAppWebViewController {
         int y = call.arguments["y"];
         if (_widget != null && _widget.onScrollChanged != null)
           _widget.onScrollChanged(this, x, y);
-        else if (_inAppBrowser != null)
-          _inAppBrowser.onScrollChanged(x, y);
+        else if (_inAppBrowser != null) _inAppBrowser.onScrollChanged(x, y);
         break;
       case "onDownloadStart":
         String url = call.arguments["url"];
         if (_widget != null && _widget.onDownloadStart != null)
           _widget.onDownloadStart(this, url);
-        else if (_inAppBrowser != null)
-          _inAppBrowser.onDownloadStart(url);
+        else if (_inAppBrowser != null) _inAppBrowser.onDownloadStart(url);
         break;
       case "onLoadResourceCustomScheme":
         String scheme = call.arguments["scheme"];
         String url = call.arguments["url"];
         if (_widget != null && _widget.onLoadResourceCustomScheme != null) {
           try {
-            var response = await _widget.onLoadResourceCustomScheme(this, scheme, url);
-            return (response != null) ? response.toJson(): null;
+            var response =
+                await _widget.onLoadResourceCustomScheme(this, scheme, url);
+            return (response != null) ? response.toJson() : null;
           } catch (error) {
             print(error);
             return null;
           }
         } else if (_inAppBrowser != null) {
           try {
-            var response = await _inAppBrowser.onLoadResourceCustomScheme(scheme, url);
-            return (response != null) ? response.toJson(): null;
+            var response =
+                await _inAppBrowser.onLoadResourceCustomScheme(scheme, url);
+            return (response != null) ? response.toJson() : null;
           } catch (error) {
             print(error);
             return null;
@@ -495,15 +547,19 @@ class InAppWebViewController {
         String url = call.arguments["url"];
         if (_widget != null && _widget.onTargetBlank != null)
           _widget.onTargetBlank(this, url);
-        else if (_inAppBrowser != null)
-          _inAppBrowser.onTargetBlank(url);
+        else if (_inAppBrowser != null) _inAppBrowser.onTargetBlank(url);
         break;
       case "onGeolocationPermissionsShowPrompt":
         String origin = call.arguments["origin"];
-        if (_widget != null && _widget.onGeolocationPermissionsShowPrompt != null)
-          return (await _widget.onGeolocationPermissionsShowPrompt(this, origin))?.toMap();
+        if (_widget != null &&
+            _widget.onGeolocationPermissionsShowPrompt != null)
+          return (await _widget.onGeolocationPermissionsShowPrompt(
+                  this, origin))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onGeolocationPermissionsShowPrompt(origin))?.toMap();
+          return (await _inAppBrowser
+                  .onGeolocationPermissionsShowPrompt(origin))
+              ?.toMap();
         break;
       case "onJsAlert":
         String message = call.arguments["message"];
@@ -523,17 +579,22 @@ class InAppWebViewController {
         String message = call.arguments["message"];
         String defaultValue = call.arguments["defaultValue"];
         if (_widget != null && _widget.onJsPrompt != null)
-          return (await _widget.onJsPrompt(this, message, defaultValue))?.toMap();
+          return (await _widget.onJsPrompt(this, message, defaultValue))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onJsPrompt(message, defaultValue))?.toMap();
+          return (await _inAppBrowser.onJsPrompt(message, defaultValue))
+              ?.toMap();
         break;
       case "onSafeBrowsingHit":
         String url = call.arguments["url"];
-        SafeBrowsingThreat threatType = SafeBrowsingThreat.fromValue(call.arguments["threatType"]);
+        SafeBrowsingThreat threatType =
+            SafeBrowsingThreat.fromValue(call.arguments["threatType"]);
         if (_widget != null && _widget.onSafeBrowsingHit != null)
-          return (await _widget.onSafeBrowsingHit(this, url, threatType))?.toMap();
+          return (await _widget.onSafeBrowsingHit(this, url, threatType))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onSafeBrowsingHit(url, threatType))?.toMap();
+          return (await _inAppBrowser.onSafeBrowsingHit(url, threatType))
+              ?.toMap();
         break;
       case "onReceivedHttpAuthRequest":
         String host = call.arguments["host"];
@@ -541,12 +602,17 @@ class InAppWebViewController {
         String realm = call.arguments["realm"];
         int port = call.arguments["port"];
         int previousFailureCount = call.arguments["previousFailureCount"];
-        var protectionSpace = ProtectionSpace(host: host, protocol: protocol, realm: realm, port: port);
-        var challenge = HttpAuthChallenge(previousFailureCount: previousFailureCount, protectionSpace: protectionSpace);
+        var protectionSpace = ProtectionSpace(
+            host: host, protocol: protocol, realm: realm, port: port);
+        var challenge = HttpAuthChallenge(
+            previousFailureCount: previousFailureCount,
+            protectionSpace: protectionSpace);
         if (_widget != null && _widget.onReceivedHttpAuthRequest != null)
-          return (await _widget.onReceivedHttpAuthRequest(this, challenge))?.toMap();
+          return (await _widget.onReceivedHttpAuthRequest(this, challenge))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onReceivedHttpAuthRequest(challenge))?.toMap();
+          return (await _inAppBrowser.onReceivedHttpAuthRequest(challenge))
+              ?.toMap();
         break;
       case "onReceivedServerTrustAuthRequest":
         String host = call.arguments["host"];
@@ -556,33 +622,47 @@ class InAppWebViewController {
         int error = call.arguments["error"];
         String message = call.arguments["message"];
         Uint8List serverCertificate = call.arguments["serverCertificate"];
-        var protectionSpace = ProtectionSpace(host: host, protocol: protocol, realm: realm, port: port);
-        var challenge = ServerTrustChallenge(protectionSpace: protectionSpace, error: error, message: message, serverCertificate: serverCertificate);
+        var protectionSpace = ProtectionSpace(
+            host: host, protocol: protocol, realm: realm, port: port);
+        var challenge = ServerTrustChallenge(
+            protectionSpace: protectionSpace,
+            error: error,
+            message: message,
+            serverCertificate: serverCertificate);
         if (_widget != null && _widget.onReceivedServerTrustAuthRequest != null)
-          return (await _widget.onReceivedServerTrustAuthRequest(this, challenge))?.toMap();
+          return (await _widget.onReceivedServerTrustAuthRequest(
+                  this, challenge))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onReceivedServerTrustAuthRequest(challenge))?.toMap();
+          return (await _inAppBrowser
+                  .onReceivedServerTrustAuthRequest(challenge))
+              ?.toMap();
         break;
       case "onReceivedClientCertRequest":
         String host = call.arguments["host"];
         String protocol = call.arguments["protocol"];
         String realm = call.arguments["realm"];
         int port = call.arguments["port"];
-        var protectionSpace = ProtectionSpace(host: host, protocol: protocol, realm: realm, port: port);
+        var protectionSpace = ProtectionSpace(
+            host: host, protocol: protocol, realm: realm, port: port);
         var challenge = ClientCertChallenge(protectionSpace: protectionSpace);
         if (_widget != null && _widget.onReceivedClientCertRequest != null)
-          return (await _widget.onReceivedClientCertRequest(this, challenge))?.toMap();
+          return (await _widget.onReceivedClientCertRequest(this, challenge))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onReceivedClientCertRequest(challenge))?.toMap();
+          return (await _inAppBrowser.onReceivedClientCertRequest(challenge))
+              ?.toMap();
         break;
       case "onFindResultReceived":
         int activeMatchOrdinal = call.arguments["activeMatchOrdinal"];
         int numberOfMatches = call.arguments["numberOfMatches"];
         bool isDoneCounting = call.arguments["isDoneCounting"];
         if (_widget != null && _widget.onFindResultReceived != null)
-          _widget.onFindResultReceived(this, activeMatchOrdinal, numberOfMatches, isDoneCounting);
+          _widget.onFindResultReceived(
+              this, activeMatchOrdinal, numberOfMatches, isDoneCounting);
         else if (_inAppBrowser != null)
-          _inAppBrowser.onFindResultReceived(activeMatchOrdinal, numberOfMatches, isDoneCounting);
+          _inAppBrowser.onFindResultReceived(
+              activeMatchOrdinal, numberOfMatches, isDoneCounting);
         break;
       case "onNavigationStateChange":
         String url = call.arguments["url"];
@@ -595,24 +675,34 @@ class InAppWebViewController {
         String origin = call.arguments["origin"];
         List<String> resources = call.arguments["resources"].cast<String>();
         if (_widget != null && _widget.onPermissionRequest != null)
-          return (await _widget.onPermissionRequest(this, origin, resources))?.toMap();
+          return (await _widget.onPermissionRequest(this, origin, resources))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await  _inAppBrowser.onPermissionRequest(origin, resources))?.toMap();
+          return (await _inAppBrowser.onPermissionRequest(origin, resources))
+              ?.toMap();
         break;
       case "onCallJsHandler":
         String handlerName = call.arguments["handlerName"];
         // decode args to json
         List<dynamic> args = jsonDecode(call.arguments["args"]);
 
-        switch(handlerName) {
+        switch (handlerName) {
           case "onLoadResource":
             Map<dynamic, dynamic> argMap = args[0];
             String initiatorType = argMap["initiatorType"];
             String url = argMap["name"];
-            double startTime = argMap["startTime"] is int ? argMap["startTime"].toDouble() : argMap["startTime"];
-            double duration = argMap["duration"] is int ? argMap["duration"].toDouble() : argMap["duration"];
-
-            var response = new LoadedResource(initiatorType: initiatorType, url: url, startTime: startTime, duration: duration);
+            double startTime = argMap["startTime"] is int
+                ? argMap["startTime"].toDouble()
+                : argMap["startTime"];
+            double duration = argMap["duration"] is int
+                ? argMap["duration"].toDouble()
+                : argMap["duration"];
+
+            var response = new LoadedResource(
+                initiatorType: initiatorType,
+                url: url,
+                startTime: startTime,
+                duration: duration);
 
             if (_widget != null && _widget.onLoadResource != null)
               _widget.onLoadResource(this, response);
@@ -631,12 +721,23 @@ class InAppWebViewController {
             AjaxRequestHeaders headers = AjaxRequestHeaders(argMap["headers"]);
             String responseType = argMap["responseType"];
 
-            var request = new AjaxRequest(data: data, method: method, url: url, isAsync: isAsync, user: user, password: password, withCredentials: withCredentials, headers: headers, responseType: responseType);
+            var request = new AjaxRequest(
+                data: data,
+                method: method,
+                url: url,
+                isAsync: isAsync,
+                user: user,
+                password: password,
+                withCredentials: withCredentials,
+                headers: headers,
+                responseType: responseType);
 
             if (_widget != null && _widget.shouldInterceptAjaxRequest != null)
-              return jsonEncode(await _widget.shouldInterceptAjaxRequest(this, request));
+              return jsonEncode(
+                  await _widget.shouldInterceptAjaxRequest(this, request));
             else if (_inAppBrowser != null)
-              return jsonEncode(await _inAppBrowser.shouldInterceptAjaxRequest(request));
+              return jsonEncode(
+                  await _inAppBrowser.shouldInterceptAjaxRequest(request));
             return null;
           case "onAjaxReadyStateChange":
             Map<dynamic, dynamic> argMap = args[0];
@@ -658,14 +759,31 @@ class InAppWebViewController {
             String statusText = argMap["statusText"];
             Map<dynamic, dynamic> responseHeaders = argMap["responseHeaders"];
 
-            var request = new AjaxRequest(data: data, method: method, url: url, isAsync: isAsync, user: user, password: password,
-                withCredentials: withCredentials, headers: headers, readyState: AjaxRequestReadyState.fromValue(readyState), status: status, responseURL: responseURL,
-                responseType: responseType, response: response, responseText: responseText, responseXML: responseXML, statusText: statusText, responseHeaders: responseHeaders);
+            var request = new AjaxRequest(
+                data: data,
+                method: method,
+                url: url,
+                isAsync: isAsync,
+                user: user,
+                password: password,
+                withCredentials: withCredentials,
+                headers: headers,
+                readyState: AjaxRequestReadyState.fromValue(readyState),
+                status: status,
+                responseURL: responseURL,
+                responseType: responseType,
+                response: response,
+                responseText: responseText,
+                responseXML: responseXML,
+                statusText: statusText,
+                responseHeaders: responseHeaders);
 
             if (_widget != null && _widget.onAjaxReadyStateChange != null)
-              return jsonEncode(await _widget.onAjaxReadyStateChange(this, request));
+              return jsonEncode(
+                  await _widget.onAjaxReadyStateChange(this, request));
             else if (_inAppBrowser != null)
-              return jsonEncode(await _inAppBrowser.onAjaxReadyStateChange(request));
+              return jsonEncode(
+                  await _inAppBrowser.onAjaxReadyStateChange(request));
             return null;
           case "onAjaxProgress":
             Map<dynamic, dynamic> argMap = args[0];
@@ -688,11 +806,31 @@ class InAppWebViewController {
             Map<dynamic, dynamic> responseHeaders = argMap["responseHeaders"];
             Map<dynamic, dynamic> eventMap = argMap["event"];
 
-            AjaxRequestEvent event = AjaxRequestEvent(lengthComputable: eventMap["lengthComputable"], loaded: eventMap["loaded"], total: eventMap["total"], type: AjaxRequestEventType.fromValue(eventMap["type"]));
-
-            var request = new AjaxRequest(data: data, method: method, url: url, isAsync: isAsync, user: user, password: password,
-                withCredentials: withCredentials, headers: headers, readyState: AjaxRequestReadyState.fromValue(readyState), status: status, responseURL: responseURL,
-                responseType: responseType, response: response, responseText: responseText, responseXML: responseXML, statusText: statusText, responseHeaders: responseHeaders, event: event);
+            AjaxRequestEvent event = AjaxRequestEvent(
+                lengthComputable: eventMap["lengthComputable"],
+                loaded: eventMap["loaded"],
+                total: eventMap["total"],
+                type: AjaxRequestEventType.fromValue(eventMap["type"]));
+
+            var request = new AjaxRequest(
+                data: data,
+                method: method,
+                url: url,
+                isAsync: isAsync,
+                user: user,
+                password: password,
+                withCredentials: withCredentials,
+                headers: headers,
+                readyState: AjaxRequestReadyState.fromValue(readyState),
+                status: status,
+                responseURL: responseURL,
+                responseType: responseType,
+                response: response,
+                responseText: responseText,
+                responseXML: responseXML,
+                statusText: statusText,
+                responseHeaders: responseHeaders,
+                event: event);
 
             if (_widget != null && _widget.onAjaxProgress != null)
               return jsonEncode(await _widget.onAjaxProgress(this, request));
@@ -706,7 +844,9 @@ class InAppWebViewController {
             Map<dynamic, dynamic> headers = argMap["headers"];
             Uint8List body = Uint8List.fromList(argMap["body"].cast<int>());
             String mode = argMap["mode"];
-            FetchRequestCredential credentials = FetchRequest.createFetchRequestCredentialFromMap(argMap["credentials"]);
+            FetchRequestCredential credentials =
+                FetchRequest.createFetchRequestCredentialFromMap(
+                    argMap["credentials"]);
             String cache = argMap["cache"];
             String redirect = argMap["redirect"];
             String referrer = argMap["referrer"];
@@ -714,13 +854,26 @@ class InAppWebViewController {
             String integrity = argMap["integrity"];
             bool keepalive = argMap["keepalive"];
 
-            var request = new FetchRequest(url: url, method: method, headers: headers, body: body, mode: mode, credentials: credentials,
-                cache: cache, redirect: redirect, referrer: referrer, referrerPolicy: referrerPolicy, integrity: integrity, keepalive: keepalive);
+            var request = new FetchRequest(
+                url: url,
+                method: method,
+                headers: headers,
+                body: body,
+                mode: mode,
+                credentials: credentials,
+                cache: cache,
+                redirect: redirect,
+                referrer: referrer,
+                referrerPolicy: referrerPolicy,
+                integrity: integrity,
+                keepalive: keepalive);
 
             if (_widget != null && _widget.shouldInterceptFetchRequest != null)
-              return jsonEncode(await _widget.shouldInterceptFetchRequest(this, request));
+              return jsonEncode(
+                  await _widget.shouldInterceptFetchRequest(this, request));
             else if (_inAppBrowser != null)
-              return jsonEncode(await _inAppBrowser.shouldInterceptFetchRequest(request));
+              return jsonEncode(
+                  await _inAppBrowser.shouldInterceptFetchRequest(request));
             return null;
         }
 
@@ -777,10 +930,11 @@ class InAppWebViewController {
   Future<String> getHtml() async {
     var html = "";
     InAppWebViewWidgetOptions options = await getOptions();
-    if (options != null && options.inAppWebViewOptions.javaScriptEnabled == true) {
-      html = await evaluateJavascript(source: "window.document.getElementsByTagName('html')[0].outerHTML;");
-      if (html != null && html.isNotEmpty)
-        return html;
+    if (options != null &&
+        options.inAppWebViewOptions.javaScriptEnabled == true) {
+      html = await evaluateJavascript(
+          source: "window.document.getElementsByTagName('html')[0].outerHTML;");
+      if (html != null && html.isNotEmpty) return html;
     }
 
     var webviewUrl = await getUrl();
@@ -789,13 +943,13 @@ class InAppWebViewController {
       var assetPath = assetPathSplitted[assetPathSplitted.length - 1];
       var bytes = await rootBundle.load(assetPath);
       html = utf8.decode(bytes.buffer.asUint8List());
-    }
-    else {
+    } else {
       HttpClient client = new HttpClient();
       var url = Uri.parse(webviewUrl);
       try {
         var htmlRequest = await client.getUrl(url);
-        html = await (await htmlRequest.close()).transform(Utf8Decoder()).join();
+        html =
+            await (await htmlRequest.close()).transform(Utf8Decoder()).join();
       } catch (e) {
         print(e);
       }
@@ -809,7 +963,9 @@ class InAppWebViewController {
 
     HttpClient client = new HttpClient();
     var webviewUrl = await getUrl();
-    var url = (webviewUrl.startsWith("file:///")) ? Uri.file(webviewUrl) : Uri.parse(webviewUrl);
+    var url = (webviewUrl.startsWith("file:///"))
+        ? Uri.file(webviewUrl)
+        : Uri.parse(webviewUrl);
     String manifestUrl;
 
     var html = await getHtml();
@@ -835,14 +991,18 @@ class InAppWebViewController {
           if (manifestUrl.startsWith("/")) {
             manifestUrl = manifestUrl.substring(1);
           }
-          manifestUrl = ((assetPathBase == null) ? url.scheme + "://" + url.host + "/" : assetPathBase) + manifestUrl;
+          manifestUrl = ((assetPathBase == null)
+                  ? url.scheme + "://" + url.host + "/"
+                  : assetPathBase) +
+              manifestUrl;
         }
         continue;
       }
       if (!attributes["rel"].contains("icon")) {
         continue;
       }
-      favicons.addAll(_createFavicons(url, assetPathBase, attributes["href"], attributes["rel"], attributes["sizes"], false));
+      favicons.addAll(_createFavicons(url, assetPathBase, attributes["href"],
+          attributes["rel"], attributes["sizes"], false));
     }
 
     // try to get /favicon.ico
@@ -850,7 +1010,7 @@ class InAppWebViewController {
       var faviconUrl = url.scheme + "://" + url.host + "/favicon.ico";
       await client.headUrl(Uri.parse(faviconUrl));
       favicons.add(Favicon(url: faviconUrl, rel: "shortcut icon"));
-    } catch(e) {
+    } catch (e) {
       print("/favicon.ico file not found: " + e.toString());
     }
 
@@ -864,16 +1024,19 @@ class InAppWebViewController {
     try {
       manifestRequest = await client.getUrl(Uri.parse(manifestUrl));
       manifestResponse = await manifestRequest.close();
-      manifestFound = manifestResponse.statusCode == 200 && manifestResponse.headers.contentType?.mimeType == "application/json";
-    } catch(e) {
+      manifestFound = manifestResponse.statusCode == 200 &&
+          manifestResponse.headers.contentType?.mimeType == "application/json";
+    } catch (e) {
       print("Manifest file not found: " + e.toString());
     }
 
     if (manifestFound) {
-      Map<String, dynamic> manifest = json.decode(await manifestResponse.transform(Utf8Decoder()).join());
+      Map<String, dynamic> manifest =
+          json.decode(await manifestResponse.transform(Utf8Decoder()).join());
       if (manifest.containsKey("icons")) {
-        for(Map<String, dynamic> icon in manifest["icons"]) {
-          favicons.addAll(_createFavicons(url, assetPathBase, icon["src"], icon["rel"], icon["sizes"], true));
+        for (Map<String, dynamic> icon in manifest["icons"]) {
+          favicons.addAll(_createFavicons(url, assetPathBase, icon["src"],
+              icon["rel"], icon["sizes"], true));
         }
       }
     }
@@ -885,7 +1048,8 @@ class InAppWebViewController {
     return url.startsWith("http://") || url.startsWith("https://");
   }
 
-  List<Favicon> _createFavicons(Uri url, String assetPathBase, String urlIcon, String rel, String sizes, bool isManifest) {
+  List<Favicon> _createFavicons(Uri url, String assetPathBase, String urlIcon,
+      String rel, String sizes, bool isManifest) {
     List<Favicon> favicons = [];
 
     List<String> urlSplitted = urlIcon.split("/");
@@ -893,17 +1057,26 @@ class InAppWebViewController {
       if (urlIcon.startsWith("/")) {
         urlIcon = urlIcon.substring(1);
       }
-      urlIcon = ((assetPathBase == null) ? url.scheme + "://" + url.host + "/" : assetPathBase) + urlIcon;
+      urlIcon = ((assetPathBase == null)
+              ? url.scheme + "://" + url.host + "/"
+              : assetPathBase) +
+          urlIcon;
     }
     if (isManifest) {
-      rel = (sizes != null) ? urlSplitted[urlSplitted.length - 1].replaceFirst("-" + sizes, "").split(" ")[0].split(".")[0] : null;
+      rel = (sizes != null)
+          ? urlSplitted[urlSplitted.length - 1]
+              .replaceFirst("-" + sizes, "")
+              .split(" ")[0]
+              .split(".")[0]
+          : null;
     }
     if (sizes != null && sizes.isNotEmpty && sizes != "any") {
       List<String> sizesSplitted = sizes.split(" ");
       for (String size in sizesSplitted) {
         int width = int.parse(size.split("x")[0]);
         int height = int.parse(size.split("x")[1]);
-        favicons.add(Favicon(url: urlIcon, rel: rel, width: width, height: height));
+        favicons
+            .add(Favicon(url: urlIcon, rel: rel, width: width, height: height));
       }
     } else {
       favicons.add(Favicon(url: urlIcon, rel: rel, width: null, height: null));
@@ -913,7 +1086,8 @@ class InAppWebViewController {
   }
 
   ///Loads the given [url] with optional [headers] specified as a map from name to value.
-  Future<void> loadUrl({@required String url, Map<String, String> headers = const {}}) async {
+  Future<void> loadUrl(
+      {@required String url, Map<String, String> headers = const {}}) async {
     assert(url != null && url.isNotEmpty);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null && _inAppBrowser != null) {
@@ -926,7 +1100,8 @@ class InAppWebViewController {
   }
 
   ///Loads the given [url] with [postData] using `POST` method into this WebView.
-  Future<void> postUrl({@required String url, @required Uint8List postData}) async {
+  Future<void> postUrl(
+      {@required String url, @required Uint8List postData}) async {
     assert(url != null && url.isNotEmpty);
     assert(postData != null);
     Map<String, dynamic> args = <String, dynamic>{};
@@ -942,7 +1117,11 @@ class InAppWebViewController {
   ///Loads the given [data] into this WebView, using [baseUrl] as the base URL for the content.
   ///The [mimeType] parameter specifies the format of the data.
   ///The [encoding] parameter specifies the encoding of the data.
-  Future<void> loadData({@required String data, String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank"}) async {
+  Future<void> loadData(
+      {@required String data,
+      String mimeType = "text/html",
+      String encoding = "utf8",
+      String baseUrl = "about:blank"}) async {
     assert(data != null);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null && _inAppBrowser != null) {
@@ -985,7 +1164,9 @@ class InAppWebViewController {
   ///inAppBrowser.loadFile("assets/index.html");
   ///...
   ///```
-  Future<void> loadFile({@required String assetFilePath, Map<String, String> headers = const {}}) async {
+  Future<void> loadFile(
+      {@required String assetFilePath,
+      Map<String, String> headers = const {}}) async {
     assert(assetFilePath != null && assetFilePath.isNotEmpty);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null && _inAppBrowser != null) {
@@ -1107,8 +1288,7 @@ class InAppWebViewController {
     }
     args.putIfAbsent('source', () => source);
     var data = await _channel.invokeMethod('evaluateJavascript', args);
-    if (data != null && Platform.isAndroid)
-      data = json.decode(data);
+    if (data != null && Platform.isAndroid) data = json.decode(data);
     return data;
   }
 
@@ -1124,7 +1304,8 @@ class InAppWebViewController {
   }
 
   ///Injects a JavaScript file into the WebView from the flutter assets directory.
-  Future<void> injectJavascriptFileFromAsset({@required String assetFilePath}) async {
+  Future<void> injectJavascriptFileFromAsset(
+      {@required String assetFilePath}) async {
     String source = await rootBundle.loadString(assetFilePath);
     await evaluateJavascript(source: source);
   }
@@ -1201,7 +1382,9 @@ class InAppWebViewController {
   ///    });
   ///  """);
   ///```
-  void addJavaScriptHandler({@required String handlerName, @required JavaScriptHandlerCallback callback}) {
+  void addJavaScriptHandler(
+      {@required String handlerName,
+      @required JavaScriptHandlerCallback callback}) {
     assert(!javaScriptHandlerForbiddenNames.contains(handlerName));
     this.javaScriptHandlersMap[handlerName] = (callback);
   }
@@ -1209,7 +1392,8 @@ class InAppWebViewController {
   ///Removes a JavaScript message handler previously added with the [addJavaScriptHandler()] associated to [handlerName] key.
   ///Returns the value associated with [handlerName] before it was removed.
   ///Returns `null` if [handlerName] was not found.
-  JavaScriptHandlerCallback removeJavaScriptHandler({@required String handlerName}) {
+  JavaScriptHandlerCallback removeJavaScriptHandler(
+      {@required String handlerName}) {
     return this.javaScriptHandlersMap.remove(handlerName);
   }
 
@@ -1252,15 +1436,20 @@ class InAppWebViewController {
       args.putIfAbsent('uuid', () => _inAppBrowserUuid);
     }
 
-    InAppWebViewWidgetOptions inAppWebViewWidgetOptions = InAppWebViewWidgetOptions();
-    Map<dynamic, dynamic> options = await _channel.invokeMethod('getOptions', args);
+    InAppWebViewWidgetOptions inAppWebViewWidgetOptions =
+        InAppWebViewWidgetOptions();
+    Map<dynamic, dynamic> options =
+        await _channel.invokeMethod('getOptions', args);
     if (options != null) {
       options = options.cast<String, dynamic>();
-      inAppWebViewWidgetOptions.inAppWebViewOptions = InAppWebViewOptions.fromMap(options);
+      inAppWebViewWidgetOptions.inAppWebViewOptions =
+          InAppWebViewOptions.fromMap(options);
       if (Platform.isAndroid)
-        inAppWebViewWidgetOptions.androidInAppWebViewOptions = AndroidInAppWebViewOptions.fromMap(options);
+        inAppWebViewWidgetOptions.androidInAppWebViewOptions =
+            AndroidInAppWebViewOptions.fromMap(options);
       else if (Platform.isIOS)
-        inAppWebViewWidgetOptions.iosInAppWebViewOptions = IosInAppWebViewOptions.fromMap(options);
+        inAppWebViewWidgetOptions.iosInAppWebViewOptions =
+            IosInAppWebViewOptions.fromMap(options);
     }
 
     return inAppWebViewWidgetOptions;
@@ -1276,7 +1465,8 @@ class InAppWebViewController {
       _inAppBrowser.throwIsNotOpened();
       args.putIfAbsent('uuid', () => _inAppBrowserUuid);
     }
-    Map<dynamic, dynamic> result = await _channel.invokeMethod('getCopyBackForwardList', args);
+    Map<dynamic, dynamic> result =
+        await _channel.invokeMethod('getCopyBackForwardList', args);
     result = result.cast<String, dynamic>();
 
     List<dynamic> historyListMap = result["history"];
@@ -1285,9 +1475,14 @@ class InAppWebViewController {
     int currentIndex = result["currentIndex"];
 
     List<WebHistoryItem> historyList = List();
-    for(var i = 0; i < historyListMap.length; i++) {
+    for (var i = 0; i < historyListMap.length; i++) {
       LinkedHashMap<dynamic, dynamic> historyItem = historyListMap[i];
-      historyList.add(WebHistoryItem(originalUrl: historyItem["originalUrl"], title: historyItem["title"], url: historyItem["url"], index: i, offset: i - currentIndex));
+      historyList.add(WebHistoryItem(
+          originalUrl: historyItem["originalUrl"],
+          title: historyItem["title"],
+          url: historyItem["url"],
+          index: i,
+          offset: i - currentIndex));
     }
     return WebHistory(list: historyList, currentIndex: currentIndex);
   }
@@ -1434,12 +1629,14 @@ class InAppWebViewController {
 
   ///Gets the html (with javascript) of the Chromium's t-rex runner game. Used in combination with [getTRexRunnerCss()].
   Future<String> getTRexRunnerHtml() async {
-    return await rootBundle.loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.html");
+    return await rootBundle
+        .loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.html");
   }
 
   ///Gets the css of the Chromium's t-rex runner game. Used in combination with [getTRexRunnerHtml()].
   Future<String> getTRexRunnerCss() async {
-    return await rootBundle.loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.css");
+    return await rootBundle
+        .loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.css");
   }
 
   ///Scrolls the WebView to the position.

lib/src/types.dart

@@ -32,10 +32,11 @@ class ConsoleMessageLevel {
       return ConsoleMessageLevel._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 0:
         return "TIP";
       case 2:
@@ -65,18 +66,19 @@ class ConsoleMessageLevel {
 ///Public class representing a resource response of the [InAppBrowser] WebView.
 ///It is used by the method [InAppBrowser.onLoadResource()].
 class LoadedResource {
-
   ///A string representing the type of resource.
   String initiatorType;
+
   ///Resource URL.
   String url;
+
   ///Returns the [DOMHighResTimeStamp](https://developer.mozilla.org/en-US/docs/Web/API/DOMHighResTimeStamp) for the time a resource fetch started.
   double startTime;
+
   ///Returns the [DOMHighResTimeStamp](https://developer.mozilla.org/en-US/docs/Web/API/DOMHighResTimeStamp) duration to fetch a resource.
   double duration;
 
   LoadedResource({this.initiatorType, this.url, this.startTime, this.duration});
-
 }
 
 ///Initial [data] as a content for an [InAppWebView] instance, using [baseUrl] as the base URL for it.
@@ -88,7 +90,11 @@ class InAppWebViewInitialData {
   String encoding;
   String baseUrl;
 
-  InAppWebViewInitialData({@required this.data, this.mimeType = "text/html", this.encoding = "utf8", this.baseUrl = "about:blank"});
+  InAppWebViewInitialData(
+      {@required this.data,
+      this.mimeType = "text/html",
+      this.encoding = "utf8",
+      this.baseUrl = "about:blank"});
 
   Map<String, String> toMap() {
     return {
@@ -136,12 +142,17 @@ class WebResourceResponse {
 class CustomSchemeResponse {
   ///Data enconded to 'base64'.
   Uint8List data;
+
   ///Content-Type of the data, such as `image/png`.
   String contentType;
+
   ///Content-Enconding of the data, such as `utf-8`.
   String contentEnconding;
 
-  CustomSchemeResponse({@required this.data, @required this.contentType, this.contentEnconding = 'utf-8'});
+  CustomSchemeResponse(
+      {@required this.data,
+      @required this.contentType,
+      this.contentEnconding = 'utf-8'});
 
   Map<String, dynamic> toJson() {
     return {
@@ -157,11 +168,11 @@ class CustomSchemeResponse {
 ///
 ///To receive notifications of these messages, use the [onConsoleMessage] event.
 class ConsoleMessage {
-
   String message;
   ConsoleMessageLevel messageLevel;
 
-  ConsoleMessage({this.message = "", this.messageLevel = ConsoleMessageLevel.LOG});
+  ConsoleMessage(
+      {this.message = "", this.messageLevel = ConsoleMessageLevel.LOG});
 }
 
 ///WebHistory class.
@@ -170,6 +181,7 @@ class ConsoleMessage {
 class WebHistory {
   ///List of all [WebHistoryItem]s.
   List<WebHistoryItem> list;
+
   ///Index of the current [WebHistoryItem].
   int currentIndex;
 
@@ -182,16 +194,21 @@ class WebHistory {
 class WebHistoryItem {
   ///Original url of this history item.
   String originalUrl;
+
   ///Document title of this history item.
   String title;
+
   ///Url of this history item.
   String url;
+
   ///0-based position index in the back-forward [WebHistory.list].
   int index;
+
   ///Position offset respect to the currentIndex of the back-forward [WebHistory.list].
   int offset;
 
-  WebHistoryItem({this.originalUrl, this.title, this.url, this.index, this.offset});
+  WebHistoryItem(
+      {this.originalUrl, this.title, this.url, this.index, this.offset});
 }
 
 ///GeolocationPermissionPromptResponse class.
@@ -200,19 +217,18 @@ class WebHistoryItem {
 class GeolocationPermissionShowPromptResponse {
   ///The origin for which permissions are set.
   String origin;
+
   ///Whether or not the origin should be allowed to use the Geolocation API.
   bool allow;
+
   ///Whether the permission should be retained beyond the lifetime of a page currently being displayed by a WebView
   bool retain;
 
-  GeolocationPermissionShowPromptResponse({this.origin, this.allow, this.retain});
+  GeolocationPermissionShowPromptResponse(
+      {this.origin, this.allow, this.retain});
 
   Map<String, dynamic> toMap() {
-    return {
-      "origin": origin,
-      "allow": allow,
-      "retain": retain
-    };
+    return {"origin": origin, "allow": allow, "retain": retain};
   }
 }
 
@@ -234,14 +250,21 @@ class JsAlertResponseAction {
 class JsAlertResponse {
   ///Message to be displayed in the window.
   String message;
+
   ///Title of the confirm button.
   String confirmButtonTitle;
+
   ///Whether the client will handle the alert dialog.
   bool handledByClient;
+
   ///Action used to confirm that the user hit confirm button.
   JsAlertResponseAction action;
 
-  JsAlertResponse({this.message = "", this.handledByClient = false, this.confirmButtonTitle = "", this.action = JsAlertResponseAction.CONFIRM});
+  JsAlertResponse(
+      {this.message = "",
+      this.handledByClient = false,
+      this.confirmButtonTitle = "",
+      this.action = JsAlertResponseAction.CONFIRM});
 
   Map<String, dynamic> toMap() {
     return {
@@ -272,16 +295,25 @@ class JsConfirmResponseAction {
 class JsConfirmResponse {
   ///Message to be displayed in the window.
   String message;
+
   ///Title of the confirm button.
   String confirmButtonTitle;
+
   ///Title of the cancel button.
   String cancelButtonTitle;
+
   ///Whether the client will handle the confirm dialog.
   bool handledByClient;
+
   ///Action used to confirm that the user hit confirm or cancel button.
   JsConfirmResponseAction action;
 
-  JsConfirmResponse({this.message = "", this.handledByClient = false, this.confirmButtonTitle = "", this.cancelButtonTitle = "", this.action = JsConfirmResponseAction.CANCEL});
+  JsConfirmResponse(
+      {this.message = "",
+      this.handledByClient = false,
+      this.confirmButtonTitle = "",
+      this.cancelButtonTitle = "",
+      this.action = JsConfirmResponseAction.CANCEL});
 
   Map<String, dynamic> toMap() {
     return {
@@ -313,20 +345,33 @@ class JsPromptResponseAction {
 class JsPromptResponse {
   ///Message to be displayed in the window.
   String message;
+
   ///The default value displayed in the prompt dialog.
   String defaultValue;
+
   ///Title of the confirm button.
   String confirmButtonTitle;
+
   ///Title of the cancel button.
   String cancelButtonTitle;
+
   ///Whether the client will handle the prompt dialog.
   bool handledByClient;
+
   ///Value of the prompt dialog.
   String value;
+
   ///Action used to confirm that the user hit confirm or cancel button.
   JsPromptResponseAction action;
 
-  JsPromptResponse({this.message = "", this.defaultValue = "", this.handledByClient = false, this.confirmButtonTitle = "", this.cancelButtonTitle = "", this.value, this.action = JsPromptResponseAction.CANCEL});
+  JsPromptResponse(
+      {this.message = "",
+      this.defaultValue = "",
+      this.handledByClient = false,
+      this.confirmButtonTitle = "",
+      this.cancelButtonTitle = "",
+      this.value,
+      this.action = JsPromptResponseAction.CANCEL});
 
   Map<String, dynamic> toMap() {
     return {
@@ -350,9 +395,10 @@ class SafeBrowsingThreat {
       return SafeBrowsingThreat._internal(value);
     return null;
   }
+
   int toValue() => _value;
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "SAFE_BROWSING_THREAT_MALWARE";
       case 2:
@@ -367,11 +413,16 @@ class SafeBrowsingThreat {
     }
   }
 
-  static const SAFE_BROWSING_THREAT_UNKNOWN = const SafeBrowsingThreat._internal(0);
-  static const SAFE_BROWSING_THREAT_MALWARE = const SafeBrowsingThreat._internal(1);
-  static const SAFE_BROWSING_THREAT_PHISHING = const SafeBrowsingThreat._internal(2);
-  static const SAFE_BROWSING_THREAT_UNWANTED_SOFTWARE = const SafeBrowsingThreat._internal(3);
-  static const SAFE_BROWSING_THREAT_BILLING = const SafeBrowsingThreat._internal(4);
+  static const SAFE_BROWSING_THREAT_UNKNOWN =
+      const SafeBrowsingThreat._internal(0);
+  static const SAFE_BROWSING_THREAT_MALWARE =
+      const SafeBrowsingThreat._internal(1);
+  static const SAFE_BROWSING_THREAT_PHISHING =
+      const SafeBrowsingThreat._internal(2);
+  static const SAFE_BROWSING_THREAT_UNWANTED_SOFTWARE =
+      const SafeBrowsingThreat._internal(3);
+  static const SAFE_BROWSING_THREAT_BILLING =
+      const SafeBrowsingThreat._internal(4);
 
   bool operator ==(value) => value == _value;
 
@@ -387,10 +438,13 @@ class SafeBrowsingResponseAction {
 
   ///Act as if the user clicked the "back to safety" button.
   static const BACK_TO_SAFETY = const SafeBrowsingResponseAction._internal(0);
+
   ///Act as if the user clicked the "visit this unsafe site" button.
   static const PROCEED = const SafeBrowsingResponseAction._internal(1);
+
   ///Display the default interstitial.
-  static const SHOW_INTERSTITIAL = const SafeBrowsingResponseAction._internal(2);
+  static const SHOW_INTERSTITIAL =
+      const SafeBrowsingResponseAction._internal(2);
 
   bool operator ==(value) => value == _value;
 
@@ -403,16 +457,16 @@ class SafeBrowsingResponseAction {
 class SafeBrowsingResponse {
   ///If reporting is enabled, all reports will be sent according to the privacy policy referenced by [InAppWebViewController.getSafeBrowsingPrivacyPolicyUrl].
   bool report;
+
   ///Indicate the [SafeBrowsingResponseAction] to take when hitting a malicious URL.
   SafeBrowsingResponseAction action;
 
-  SafeBrowsingResponse({this.report = true, this.action = SafeBrowsingResponseAction.SHOW_INTERSTITIAL});
+  SafeBrowsingResponse(
+      {this.report = true,
+      this.action = SafeBrowsingResponseAction.SHOW_INTERSTITIAL});
 
   Map<String, dynamic> toMap() {
-    return {
-      "report": report,
-      "action": action?.toValue()
-    };
+    return {"report": report, "action": action?.toValue()};
   }
 }
 
@@ -424,10 +478,13 @@ class HttpAuthResponseAction {
 
   ///Instructs the WebView to cancel the authentication request.
   static const CANCEL = const HttpAuthResponseAction._internal(0);
+
   ///Instructs the WebView to proceed with the authentication with the given credentials.
   static const PROCEED = const HttpAuthResponseAction._internal(1);
+
   ///Uses the credentials stored for the current host.
-  static const USE_SAVED_HTTP_AUTH_CREDENTIALS = const HttpAuthResponseAction._internal(2);
+  static const USE_SAVED_HTTP_AUTH_CREDENTIALS =
+      const HttpAuthResponseAction._internal(2);
 
   bool operator ==(value) => value == _value;
 
@@ -439,14 +496,21 @@ class HttpAuthResponseAction {
 class HttpAuthResponse {
   ///Represents the username used for the authentication if the [action] corresponds to [HttpAuthResponseAction.PROCEED]
   String username;
+
   ///Represents the password used for the authentication if the [action] corresponds to [HttpAuthResponseAction.PROCEED]
   String password;
+
   ///Indicate if the given credentials need to be saved permanently.
   bool permanentPersistence;
+
   ///Indicate the [HttpAuthResponseAction] to take in response of the authentication challenge.
   HttpAuthResponseAction action;
 
-  HttpAuthResponse({this.username = "", this.password = "", this.permanentPersistence = false, this.action = HttpAuthResponseAction.CANCEL});
+  HttpAuthResponse(
+      {this.username = "",
+      this.password = "",
+      this.permanentPersistence = false,
+      this.action = HttpAuthResponseAction.CANCEL});
 
   Map<String, dynamic> toMap() {
     return {
@@ -463,26 +527,34 @@ class HttpAuthResponse {
 class HttpAuthChallenge {
   ///A count of previous failed authentication attempts.
   int previousFailureCount;
+
   ///The protection space requiring authentication.
   ProtectionSpace protectionSpace;
 
-  HttpAuthChallenge({@required this.previousFailureCount, @required this.protectionSpace}): assert(previousFailureCount != null && protectionSpace != null);
+  HttpAuthChallenge(
+      {@required this.previousFailureCount, @required this.protectionSpace})
+      : assert(previousFailureCount != null && protectionSpace != null);
 }
 
 ///ProtectionSpace class represents a protection space requiring authentication.
 class ProtectionSpace {
   ///The hostname of the server.
   String host;
+
   ///The protocol of the server - e.g. "http", "ftp", "https".
   String protocol;
+
   ///A string indicating a protocol-specific subdivision of a single host.
   ///For http and https, this maps to the realm string in http authentication challenges.
   ///For many other protocols it is unused.
   String realm;
+
   ///The port of the server.
   int port;
 
-  ProtectionSpace({@required this.host, @required this.protocol, this.realm, this.port}): assert(host != null && protocol != null);
+  ProtectionSpace(
+      {@required this.host, @required this.protocol, this.realm, this.port})
+      : assert(host != null && protocol != null);
 }
 
 ///HttpAuthCredential represents the credentials of an http authentication.
@@ -490,10 +562,12 @@ class ProtectionSpace {
 class HttpAuthCredential {
   ///Represents the username.
   String username;
+
   ///Represents the password.
   String password;
 
-  HttpAuthCredential({@required this.username, @required this.password}): assert(username != null && password != null);
+  HttpAuthCredential({@required this.username, @required this.password})
+      : assert(username != null && password != null);
 }
 
 ///ServerTrustAuthResponseAction class used by [ServerTrustAuthResponse] class.
@@ -504,6 +578,7 @@ class ServerTrustAuthResponseAction {
 
   ///Instructs the WebView to cancel the authentication challenge.
   static const CANCEL = const ServerTrustAuthResponseAction._internal(0);
+
   ///Instructs the WebView to proceed with the authentication challenge.
   static const PROCEED = const ServerTrustAuthResponseAction._internal(1);
 
@@ -521,9 +596,7 @@ class ServerTrustAuthResponse {
   ServerTrustAuthResponse({this.action = ServerTrustAuthResponseAction.CANCEL});
 
   Map<String, dynamic> toMap() {
-    return {
-      "action": action?.toValue()
-    };
+    return {"action": action?.toValue()};
   }
 }
 
@@ -532,18 +605,26 @@ class ServerTrustAuthResponse {
 class ServerTrustChallenge {
   ///The protection space requiring authentication.
   ProtectionSpace protectionSpace;
+
   ///The primary error associated to the server SSL certificate.
   ///
   ///**NOTE**: on iOS this value is always -1.
   int error;
+
   ///The message associated to the [error].
   ///
   ///**NOTE**: on iOS this value is always an empty string.
   String message;
+
   ///The `X509Certificate` used to create the server SSL certificate.
   Uint8List serverCertificate;
 
-  ServerTrustChallenge({@required this.protectionSpace, @required this.error, this.message, this.serverCertificate}): assert(protectionSpace != null && error != null);
+  ServerTrustChallenge(
+      {@required this.protectionSpace,
+      @required this.error,
+      this.message,
+      this.serverCertificate})
+      : assert(protectionSpace != null && error != null);
 }
 
 ///ClientCertResponseAction class used by [ClientCertResponse] class.
@@ -554,8 +635,10 @@ class ClientCertResponseAction {
 
   ///Cancel this request.
   static const CANCEL = const ClientCertResponseAction._internal(0);
+
   ///Proceed with the specified certificate.
   static const PROCEED = const ClientCertResponseAction._internal(1);
+
   ///Ignore the request for now.
   static const IGNORE = const ClientCertResponseAction._internal(2);
 
@@ -569,14 +652,21 @@ class ClientCertResponseAction {
 class ClientCertResponse {
   ///The file path of the certificate to use.
   String certificatePath;
+
   ///The certificate password.
   String certificatePassword;
+
   ///An Android-specific property used by Java [KeyStore](https://developer.android.com/reference/java/security/KeyStore) class to get the instance.
   String androidKeyStoreType;
+
   ///Indicate the [ClientCertResponseAction] to take in response of the client certificate challenge.
   ClientCertResponseAction action;
 
-  ClientCertResponse({this.certificatePath, this.certificatePassword = "", this.androidKeyStoreType = "PKCS12", this.action = ClientCertResponseAction.CANCEL}) {
+  ClientCertResponse(
+      {this.certificatePath,
+      this.certificatePassword = "",
+      this.androidKeyStoreType = "PKCS12",
+      this.action = ClientCertResponseAction.CANCEL}) {
     if (this.action == ClientCertResponseAction.PROCEED)
       assert(certificatePath != null && certificatePath.isNotEmpty);
   }
@@ -597,21 +687,26 @@ class ClientCertChallenge {
   ///The protection space requiring authentication.
   ProtectionSpace protectionSpace;
 
-  ClientCertChallenge({@required this.protectionSpace}): assert(protectionSpace != null);
+  ClientCertChallenge({@required this.protectionSpace})
+      : assert(protectionSpace != null);
 }
 
 ///Favicon class represents a favicon of a website. It is used by [InAppWebViewController.getFavicons] method.
 class Favicon {
   ///The url of the favicon image.
   String url;
+
   ///The relationship between the current web page and the favicon image.
   String rel;
+
   ///The width of the favicon image.
   int width;
+
   ///The height of the favicon image.
   int height;
 
-  Favicon({@required this.url, this.rel, this.width, this.height}): assert(url != null);
+  Favicon({@required this.url, this.rel, this.width, this.height})
+      : assert(url != null);
 
   String toString() {
     return "url: $url, rel: $rel, width: $width, height: $height";
@@ -627,10 +722,11 @@ class AndroidInAppWebViewCacheMode {
       return AndroidInAppWebViewCacheMode._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "LOAD_CACHE_ELSE_NETWORK";
       case 2:
@@ -646,12 +742,17 @@ class AndroidInAppWebViewCacheMode {
   ///Default cache usage mode. If the navigation type doesn't impose any specific behavior,
   ///use cached resources when they are available and not expired, otherwise load resources from the network.
   static const LOAD_DEFAULT = const AndroidInAppWebViewCacheMode._internal(-1);
+
   ///Use cached resources when they are available, even if they have expired. Otherwise load resources from the network.
-  static const LOAD_CACHE_ELSE_NETWORK = const AndroidInAppWebViewCacheMode._internal(1);
+  static const LOAD_CACHE_ELSE_NETWORK =
+      const AndroidInAppWebViewCacheMode._internal(1);
+
   ///Don't use the cache, load from the network.
   static const LOAD_NO_CACHE = const AndroidInAppWebViewCacheMode._internal(2);
+
   ///Don't use the network, load from the cache.
-  static const LOAD_CACHE_ONLY = const AndroidInAppWebViewCacheMode._internal(3);
+  static const LOAD_CACHE_ONLY =
+      const AndroidInAppWebViewCacheMode._internal(3);
 
   bool operator ==(value) => value == _value;
 
@@ -670,10 +771,11 @@ class AndroidInAppWebViewModeMenuItem {
       return AndroidInAppWebViewModeMenuItem._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "MENU_ITEM_SHARE";
       case 2:
@@ -687,13 +789,20 @@ class AndroidInAppWebViewModeMenuItem {
   }
 
   ///No menu items should be disabled.
-  static const MENU_ITEM_NONE = const AndroidInAppWebViewModeMenuItem._internal(0);
+  static const MENU_ITEM_NONE =
+      const AndroidInAppWebViewModeMenuItem._internal(0);
+
   ///Disable menu item "Share".
-  static const MENU_ITEM_SHARE = const AndroidInAppWebViewModeMenuItem._internal(1);
+  static const MENU_ITEM_SHARE =
+      const AndroidInAppWebViewModeMenuItem._internal(1);
+
   ///Disable menu item "Web Search".
-  static const MENU_ITEM_WEB_SEARCH = const AndroidInAppWebViewModeMenuItem._internal(2);
+  static const MENU_ITEM_WEB_SEARCH =
+      const AndroidInAppWebViewModeMenuItem._internal(2);
+
   ///Disable all the action mode menu items for text processing.
-  static const MENU_ITEM_PROCESS_TEXT = const AndroidInAppWebViewModeMenuItem._internal(4);
+  static const MENU_ITEM_PROCESS_TEXT =
+      const AndroidInAppWebViewModeMenuItem._internal(4);
 
   bool operator ==(value) => value == _value;
 
@@ -712,10 +821,11 @@ class AndroidInAppWebViewForceDark {
       return AndroidInAppWebViewForceDark._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "FORCE_DARK_AUTO";
       case 2:
@@ -729,8 +839,11 @@ class AndroidInAppWebViewForceDark {
   ///Disable force dark, irrespective of the force dark mode of the WebView parent.
   ///In this mode, WebView content will always be rendered as-is, regardless of whether native views are being automatically darkened.
   static const FORCE_DARK_OFF = const AndroidInAppWebViewForceDark._internal(0);
+
   ///Enable force dark dependent on the state of the WebView parent view.
-  static const FORCE_DARK_AUTO = const AndroidInAppWebViewForceDark._internal(1);
+  static const FORCE_DARK_AUTO =
+      const AndroidInAppWebViewForceDark._internal(1);
+
   ///Unconditionally enable force dark. In this mode WebView content will always be rendered so as to emulate a dark theme.
   static const FORCE_DARK_ON = const AndroidInAppWebViewForceDark._internal(2);
 
@@ -745,19 +858,25 @@ class AndroidInAppWebViewLayoutAlgorithm {
   final String _value;
   const AndroidInAppWebViewLayoutAlgorithm._internal(this._value);
   static AndroidInAppWebViewLayoutAlgorithm fromValue(String value) {
-    return (["NORMAL", "TEXT_AUTOSIZING"].contains(value)) ? AndroidInAppWebViewLayoutAlgorithm._internal(value) : null;
+    return (["NORMAL", "TEXT_AUTOSIZING"].contains(value))
+        ? AndroidInAppWebViewLayoutAlgorithm._internal(value)
+        : null;
   }
+
   String toValue() => _value;
   @override
   String toString() => _value;
 
   ///NORMAL means no rendering changes. This is the recommended choice for maximum compatibility across different platforms and Android versions.
-  static const NORMAL = const AndroidInAppWebViewLayoutAlgorithm._internal("NORMAL");
+  static const NORMAL =
+      const AndroidInAppWebViewLayoutAlgorithm._internal("NORMAL");
+
   ///TEXT_AUTOSIZING boosts font size of paragraphs based on heuristics to make the text readable when viewing a wide-viewport layout in the overview mode.
   ///It is recommended to enable zoom support [AndroidInAppWebViewOptions.supportZoom] when using this mode.
   ///
   ///**NOTE**: available on Android 19+.
-  static const TEXT_AUTOSIZING = const AndroidInAppWebViewLayoutAlgorithm._internal("TEXT_AUTOSIZING");
+  static const TEXT_AUTOSIZING =
+      const AndroidInAppWebViewLayoutAlgorithm._internal("TEXT_AUTOSIZING");
 
   bool operator ==(value) => value == _value;
 
@@ -776,10 +895,11 @@ class AndroidInAppWebViewMixedContentMode {
       return AndroidInAppWebViewMixedContentMode._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "MIXED_CONTENT_NEVER_ALLOW";
       case 2:
@@ -792,16 +912,21 @@ class AndroidInAppWebViewMixedContentMode {
 
   ///In this mode, the WebView will allow a secure origin to load content from any other origin, even if that origin is insecure.
   ///This is the least secure mode of operation for the WebView, and where possible apps should not set this mode.
-  static const MIXED_CONTENT_ALWAYS_ALLOW = const AndroidInAppWebViewMixedContentMode._internal(0);
+  static const MIXED_CONTENT_ALWAYS_ALLOW =
+      const AndroidInAppWebViewMixedContentMode._internal(0);
+
   ///In this mode, the WebView will not allow a secure origin to load content from an insecure origin.
   ///This is the preferred and most secure mode of operation for the WebView and apps are strongly advised to use this mode.
-  static const MIXED_CONTENT_NEVER_ALLOW = const AndroidInAppWebViewMixedContentMode._internal(1);
+  static const MIXED_CONTENT_NEVER_ALLOW =
+      const AndroidInAppWebViewMixedContentMode._internal(1);
+
   ///In this mode, the WebView will attempt to be compatible with the approach of a modern web browser with regard to mixed content.
   ///Some insecure content may be allowed to be loaded by a secure origin and other types of content will be blocked.
   ///The types of content are allowed or blocked may change release to release and are not explicitly defined.
   ///This mode is intended to be used by apps that are not in control of the content that they render but desire to operate in a reasonably secure environment.
   ///For highest security, apps are recommended to use [AndroidInAppWebViewMixedContentMode.MIXED_CONTENT_NEVER_ALLOW].
-  static const MIXED_CONTENT_COMPATIBILITY_MODE = const AndroidInAppWebViewMixedContentMode._internal(2);
+  static const MIXED_CONTENT_COMPATIBILITY_MODE =
+      const AndroidInAppWebViewMixedContentMode._internal(2);
 
   bool operator ==(value) => value == _value;
 
@@ -818,10 +943,11 @@ class IosInAppWebViewSelectionGranularity {
       return IosInAppWebViewSelectionGranularity._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "CHARACTER";
       case 0:
@@ -832,8 +958,10 @@ class IosInAppWebViewSelectionGranularity {
 
   ///Selection granularity varies automatically based on the selection.
   static const DYNAMIC = const IosInAppWebViewSelectionGranularity._internal(0);
+
   ///Selection endpoints can be placed at any character boundary.
-  static const CHARACTER = const IosInAppWebViewSelectionGranularity._internal(1);
+  static const CHARACTER =
+      const IosInAppWebViewSelectionGranularity._internal(1);
 
   bool operator ==(value) => value == _value;
 
@@ -848,31 +976,61 @@ class IosInAppWebViewDataDetectorTypes {
   final String _value;
   const IosInAppWebViewDataDetectorTypes._internal(this._value);
   static IosInAppWebViewDataDetectorTypes fromValue(String value) {
-    return (["NONE", "PHONE_NUMBER", "LINK", "ADDRESS", "CALENDAR_EVENT", "TRACKING_NUMBER",
-      "TRACKING_NUMBER", "FLIGHT_NUMBER", "LOOKUP_SUGGESTION", "SPOTLIGHT_SUGGESTION", "ALL"].contains(value)) ? IosInAppWebViewDataDetectorTypes._internal(value) : null;
+    return ([
+      "NONE",
+      "PHONE_NUMBER",
+      "LINK",
+      "ADDRESS",
+      "CALENDAR_EVENT",
+      "TRACKING_NUMBER",
+      "TRACKING_NUMBER",
+      "FLIGHT_NUMBER",
+      "LOOKUP_SUGGESTION",
+      "SPOTLIGHT_SUGGESTION",
+      "ALL"
+    ].contains(value))
+        ? IosInAppWebViewDataDetectorTypes._internal(value)
+        : null;
   }
+
   String toValue() => _value;
   @override
   String toString() => _value;
 
   ///No detection is performed.
   static const NONE = const IosInAppWebViewDataDetectorTypes._internal("NONE");
+
   ///Phone numbers are detected and turned into links.
-  static const PHONE_NUMBER = const IosInAppWebViewDataDetectorTypes._internal("PHONE_NUMBER");
+  static const PHONE_NUMBER =
+      const IosInAppWebViewDataDetectorTypes._internal("PHONE_NUMBER");
+
   ///URLs in text are detected and turned into links.
   static const LINK = const IosInAppWebViewDataDetectorTypes._internal("LINK");
+
   ///Addresses are detected and turned into links.
-  static const ADDRESS = const IosInAppWebViewDataDetectorTypes._internal("ADDRESS");
+  static const ADDRESS =
+      const IosInAppWebViewDataDetectorTypes._internal("ADDRESS");
+
   ///Dates and times that are in the future are detected and turned into links.
-  static const CALENDAR_EVENT = const IosInAppWebViewDataDetectorTypes._internal("CALENDAR_EVENT");
+  static const CALENDAR_EVENT =
+      const IosInAppWebViewDataDetectorTypes._internal("CALENDAR_EVENT");
+
   ///Tracking numbers are detected and turned into links.
-  static const TRACKING_NUMBER = const IosInAppWebViewDataDetectorTypes._internal("TRACKING_NUMBER");
+  static const TRACKING_NUMBER =
+      const IosInAppWebViewDataDetectorTypes._internal("TRACKING_NUMBER");
+
   ///Flight numbers are detected and turned into links.
-  static const FLIGHT_NUMBER = const IosInAppWebViewDataDetectorTypes._internal("FLIGHT_NUMBER");
+  static const FLIGHT_NUMBER =
+      const IosInAppWebViewDataDetectorTypes._internal("FLIGHT_NUMBER");
+
   ///Lookup suggestions are detected and turned into links.
-  static const LOOKUP_SUGGESTION = const IosInAppWebViewDataDetectorTypes._internal("LOOKUP_SUGGESTION");
+  static const LOOKUP_SUGGESTION =
+      const IosInAppWebViewDataDetectorTypes._internal("LOOKUP_SUGGESTION");
+
   ///Spotlight suggestions are detected and turned into links.
-  static const SPOTLIGHT_SUGGESTION = const IosInAppWebViewDataDetectorTypes._internal("SPOTLIGHT_SUGGESTION");
+  static const SPOTLIGHT_SUGGESTION =
+      const IosInAppWebViewDataDetectorTypes._internal("SPOTLIGHT_SUGGESTION");
+
   ///All of the above data types are turned into links when detected. Choosing this value will automatically include any new detection type that is added.
   static const ALL = const IosInAppWebViewDataDetectorTypes._internal("ALL");
 
@@ -891,10 +1049,11 @@ class InAppWebViewUserPreferredContentMode {
       return InAppWebViewUserPreferredContentMode._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "MOBILE";
       case 2:
@@ -906,11 +1065,15 @@ class InAppWebViewUserPreferredContentMode {
   }
 
   ///The recommended content mode for the current platform.
-  static const RECOMMENDED = const InAppWebViewUserPreferredContentMode._internal(0);
+  static const RECOMMENDED =
+      const InAppWebViewUserPreferredContentMode._internal(0);
+
   ///Represents content targeting mobile browsers.
   static const MOBILE = const InAppWebViewUserPreferredContentMode._internal(1);
+
   ///Represents content targeting desktop browsers.
-  static const DESKTOP = const InAppWebViewUserPreferredContentMode._internal(2);
+  static const DESKTOP =
+      const InAppWebViewUserPreferredContentMode._internal(2);
 
   bool operator ==(value) => value == _value;
 
@@ -927,10 +1090,11 @@ class IosWebViewOptionsPresentationStyle {
       return IosWebViewOptionsPresentationStyle._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "PAGE_SHEET";
       case 2:
@@ -956,27 +1120,43 @@ class IosWebViewOptionsPresentationStyle {
   }
 
   ///A presentation style in which the presented view covers the screen.
-  static const FULL_SCREEN = const IosWebViewOptionsPresentationStyle._internal(0);
+  static const FULL_SCREEN =
+      const IosWebViewOptionsPresentationStyle._internal(0);
+
   ///A presentation style that partially covers the underlying content.
-  static const PAGE_SHEET = const IosWebViewOptionsPresentationStyle._internal(1);
+  static const PAGE_SHEET =
+      const IosWebViewOptionsPresentationStyle._internal(1);
+
   ///A presentation style that displays the content centered in the screen.
-  static const FORM_SHEET = const IosWebViewOptionsPresentationStyle._internal(2);
+  static const FORM_SHEET =
+      const IosWebViewOptionsPresentationStyle._internal(2);
+
   ///A presentation style where the content is displayed over another view controller’s content.
-  static const CURRENT_CONTEXT = const IosWebViewOptionsPresentationStyle._internal(3);
+  static const CURRENT_CONTEXT =
+      const IosWebViewOptionsPresentationStyle._internal(3);
+
   ///A custom view presentation style that is managed by a custom presentation controller and one or more custom animator objects.
   static const CUSTOM = const IosWebViewOptionsPresentationStyle._internal(4);
+
   ///A view presentation style in which the presented view covers the screen.
-  static const OVER_FULL_SCREEN = const IosWebViewOptionsPresentationStyle._internal(5);
+  static const OVER_FULL_SCREEN =
+      const IosWebViewOptionsPresentationStyle._internal(5);
+
   ///A presentation style where the content is displayed over another view controller’s content.
-  static const OVER_CURRENT_CONTEXT = const IosWebViewOptionsPresentationStyle._internal(6);
+  static const OVER_CURRENT_CONTEXT =
+      const IosWebViewOptionsPresentationStyle._internal(6);
+
   ///A presentation style where the content is displayed in a popover view.
   static const POPOVER = const IosWebViewOptionsPresentationStyle._internal(7);
+
   ///A presentation style that indicates no adaptations should be made.
   static const NONE = const IosWebViewOptionsPresentationStyle._internal(8);
+
   ///The default presentation style chosen by the system.
   ///
   ///**NOTE**: available on iOS 13.0+.
-  static const AUTOMATIC = const IosWebViewOptionsPresentationStyle._internal(9);
+  static const AUTOMATIC =
+      const IosWebViewOptionsPresentationStyle._internal(9);
 
   bool operator ==(value) => value == _value;
 
@@ -993,10 +1173,11 @@ class IosWebViewOptionsTransitionStyle {
       return IosWebViewOptionsTransitionStyle._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "FLIP_HORIZONTAL";
       case 2:
@@ -1011,18 +1192,25 @@ class IosWebViewOptionsTransitionStyle {
 
   ///When the view controller is presented, its view slides up from the bottom of the screen.
   ///On dismissal, the view slides back down. This is the default transition style.
-  static const COVER_VERTICAL = const IosWebViewOptionsTransitionStyle._internal(0);
+  static const COVER_VERTICAL =
+      const IosWebViewOptionsTransitionStyle._internal(0);
+
   ///When the view controller is presented, the current view initiates a horizontal 3D flip from right-to-left,
   ///resulting in the revealing of the new view as if it were on the back of the previous view.
   ///On dismissal, the flip occurs from left-to-right, returning to the original view.
-  static const FLIP_HORIZONTAL = const IosWebViewOptionsTransitionStyle._internal(1);
+  static const FLIP_HORIZONTAL =
+      const IosWebViewOptionsTransitionStyle._internal(1);
+
   ///When the view controller is presented, the current view fades out while the new view fades in at the same time.
   ///On dismissal, a similar type of cross-fade is used to return to the original view.
-  static const CROSS_DISSOLVE = const IosWebViewOptionsTransitionStyle._internal(2);
+  static const CROSS_DISSOLVE =
+      const IosWebViewOptionsTransitionStyle._internal(2);
+
   ///When the view controller is presented, one corner of the current view curls up to reveal the presented view underneath.
   ///On dismissal, the curled up page unfurls itself back on top of the presented view.
   ///A view controller presented using this transition is itself prevented from presenting any additional view controllers.
-  static const PARTIAL_CURL = const IosWebViewOptionsTransitionStyle._internal(3);
+  static const PARTIAL_CURL =
+      const IosWebViewOptionsTransitionStyle._internal(3);
 
   bool operator ==(value) => value == _value;
 
@@ -1041,10 +1229,11 @@ class IosSafariOptionsDismissButtonStyle {
       return IosSafariOptionsDismissButtonStyle._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "CLOSE";
       case 2:
@@ -1057,8 +1246,10 @@ class IosSafariOptionsDismissButtonStyle {
 
   ///Makes the button title the localized string "Done".
   static const DONE = const IosSafariOptionsDismissButtonStyle._internal(0);
+
   ///Makes the button title the localized string "Close".
   static const CLOSE = const IosSafariOptionsDismissButtonStyle._internal(1);
+
   ///Makes the button title the localized string "Cancel".
   static const CANCEL = const IosSafariOptionsDismissButtonStyle._internal(2);
 
@@ -1072,36 +1263,50 @@ class IosSafariOptionsDismissButtonStyle {
 class InAppWebViewWidgetOptions {
   ///Cross-platform options.
   InAppWebViewOptions inAppWebViewOptions;
+
   ///Android-specific options.
   AndroidInAppWebViewOptions androidInAppWebViewOptions;
+
   ///iOS-specific options.
   IosInAppWebViewOptions iosInAppWebViewOptions;
 
-  InAppWebViewWidgetOptions({this.inAppWebViewOptions, this.androidInAppWebViewOptions, this.iosInAppWebViewOptions});
+  InAppWebViewWidgetOptions(
+      {this.inAppWebViewOptions,
+      this.androidInAppWebViewOptions,
+      this.iosInAppWebViewOptions});
 }
 
 ///InAppBrowserClassOptions class represents the options that can be used for an [InAppBrowser] WebView.
 class InAppBrowserClassOptions {
   ///Cross-platform options.
   InAppBrowserOptions inAppBrowserOptions;
+
   ///Android-specific options.
   AndroidInAppBrowserOptions androidInAppBrowserOptions;
+
   ///iOS-specific options.
   IosInAppBrowserOptions iosInAppBrowserOptions;
+
   ///WebView options.
   InAppWebViewWidgetOptions inAppWebViewWidgetOptions;
 
-  InAppBrowserClassOptions({this.inAppBrowserOptions, this.androidInAppBrowserOptions, this.iosInAppBrowserOptions, this.inAppWebViewWidgetOptions});
+  InAppBrowserClassOptions(
+      {this.inAppBrowserOptions,
+      this.androidInAppBrowserOptions,
+      this.iosInAppBrowserOptions,
+      this.inAppWebViewWidgetOptions});
 }
 
 ///ChromeSafariBrowserClassOptions class represents the options that can be used for an [ChromeSafariBrowser] window.
 class ChromeSafariBrowserClassOptions {
   ///Android-specific options.
   AndroidChromeCustomTabsOptions androidChromeCustomTabsOptions;
+
   ///iOS-specific options.
   IosSafariOptions iosSafariOptions;
 
-  ChromeSafariBrowserClassOptions({this.androidChromeCustomTabsOptions, this.iosSafariOptions});
+  ChromeSafariBrowserClassOptions(
+      {this.androidChromeCustomTabsOptions, this.iosSafariOptions});
 }
 
 ///AjaxRequestAction class used by [AjaxRequest] class.
@@ -1112,6 +1317,7 @@ class AjaxRequestAction {
 
   ///Aborts the current [AjaxRequest].
   static const ABORT = const AjaxRequestAction._internal(0);
+
   ///Proceeds with the current [AjaxRequest].
   static const PROCEED = const AjaxRequestAction._internal(1);
 
@@ -1136,24 +1342,34 @@ class AjaxRequestEventType {
   final String _value;
   const AjaxRequestEventType._internal(this._value);
   static AjaxRequestEventType fromValue(String value) {
-    return (["loadstart", "load", "loadend", "progress", "error", "abort"].contains(value)) ? AjaxRequestEventType._internal(value) : null;
+    return (["loadstart", "load", "loadend", "progress", "error", "abort"]
+            .contains(value))
+        ? AjaxRequestEventType._internal(value)
+        : null;
   }
+
   String toValue() => _value;
   String toString() => _value;
 
   ///The LOADSTART event is fired when a request has started to load data.
   static const LOADSTART = const AjaxRequestEventType._internal("loadstart");
+
   ///The LOAD event is fired when an `XMLHttpRequest` transaction completes successfully.
   static const LOAD = const AjaxRequestEventType._internal("load");
+
   ///The LOADEND event is fired when a request has completed, whether successfully (after [AjaxRequestEventType.LOAD]) or
   ///unsuccessfully (after [AjaxRequestEventType.ABORT] or [AjaxRequestEventType.ERROR]).
   static const LOADEND = const AjaxRequestEventType._internal("loadend");
+
   ///The PROGRESS event is fired periodically when a request receives more data.
   static const PROGRESS = const AjaxRequestEventType._internal("progress");
+
   ///The ERROR event is fired when the request encountered an error.
   static const ERROR = const AjaxRequestEventType._internal("error");
+
   ///The ABORT event is fired when a request has been aborted.
   static const ABORT = const AjaxRequestEventType._internal("abort");
+
   ///The TIMEOUT event is fired when progression is terminated due to preset time expiring.
   static const TIMEOUT = const AjaxRequestEventType._internal("timeout");
 
@@ -1167,13 +1383,16 @@ class AjaxRequestEventType {
 class AjaxRequestEvent {
   ///Event type.
   AjaxRequestEventType type;
+
   ///Is a Boolean flag indicating if the total work to be done, and the amount of work already done, by the underlying process is calculable.
   ///In other words, it tells if the progress is measurable or not.
   bool lengthComputable;
+
   ///Is an integer representing the amount of work already performed by the underlying process.
   ///The ratio of work done can be calculated with the property and [AjaxRequestEvent.total].
   ///When downloading a resource using HTTP, this only represent the part of the content itself, not headers and other overhead.
   int loaded;
+
   ///Is an integer representing the total amount of work that the underlying process is in the progress of performing.
   ///When downloading a resource using HTTP, this only represent the content itself, not headers and other overhead.
   int total;
@@ -1190,10 +1409,11 @@ class AjaxRequestReadyState {
       return AjaxRequestReadyState._internal(value);
     return null;
   }
+
   int toValue() => _value;
   @override
   String toString() {
-    switch(_value) {
+    switch (_value) {
       case 1:
         return "OPENED";
       case 2:
@@ -1210,12 +1430,16 @@ class AjaxRequestReadyState {
 
   ///Client has been created. `XMLHttpRequest.open()` not called yet.
   static const UNSENT = const AjaxRequestReadyState._internal(0);
+
   ///`XMLHttpRequest.open()` has been called.
   static const OPENED = const AjaxRequestReadyState._internal(1);
+
   ///`XMLHttpRequest.send()` has been called, and [AjaxRequest.headers] and [AjaxRequest.status] are available.
   static const HEADERS_RECEIVED = const AjaxRequestReadyState._internal(2);
+
   ///Downloading; [AjaxRequest.responseText] holds partial data.
   static const LOADING = const AjaxRequestReadyState._internal(3);
+
   ///The operation is complete.
   static const DONE = const AjaxRequestReadyState._internal(4);
 
@@ -1254,56 +1478,91 @@ class AjaxRequestHeaders {
 class AjaxRequest {
   ///Data passed as a parameter to the `XMLHttpRequest.send()` method.
   dynamic data;
+
   ///The HTTP request method of the `XMLHttpRequest` request.
   String method;
+
   ///The URL of the `XMLHttpRequest` request.
   String url;
+
   ///An optional Boolean parameter, defaulting to true, indicating whether or not the request is performed asynchronously.
   bool isAsync;
+
   ///The optional user name to use for authentication purposes; by default, this is the null value.
   String user;
+
   ///The optional password to use for authentication purposes; by default, this is the null value.
   String password;
+
   ///The XMLHttpRequest.withCredentials property is a Boolean that indicates whether or not cross-site Access-Control requests
   ///should be made using credentials such as cookies, authorization headers or TLS client certificates.
   ///Setting withCredentials has no effect on same-site requests.
   ///In addition, this flag is also used to indicate when cookies are to be ignored in the response. The default is false.
   bool withCredentials;
+
   ///The HTTP request headers.
   AjaxRequestHeaders headers;
+
   ///The state of the `XMLHttpRequest` request.
   AjaxRequestReadyState readyState;
+
   ///The numerical HTTP [status code](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status) of the `XMLHttpRequest`'s response.
   int status;
+
   ///The serialized URL of the response or the empty string if the URL is null.
   ///If the URL is returned, any URL fragment present in the URL will be stripped away.
   ///The value of responseURL will be the final URL obtained after any redirects.
   String responseURL;
+
   ///It is an enumerated string value specifying the type of data contained in the response.
   ///It also lets the author change the [response type](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseType).
   ///If an empty string is set as the value of responseType, the default value of text is used.
   String responseType;
+
   ///The response's body content. The content-type depends on the [AjaxRequest.reponseType].
   dynamic response;
+
   ///The text received from a server following a request being sent.
   String responseText;
+
   ///The HTML or XML string retrieved by the request or null if the request was unsuccessful, has not yet been sent, or if the data can't be parsed as XML or HTML.
   String responseXML;
+
   ///A String containing the response's status message as returned by the HTTP server.
   ///Unlike [AjaxRequest.status] which indicates a numerical status code, this property contains the text of the response status, such as "OK" or "Not Found".
   ///If the request's readyState is in [AjaxRequestReadyState.UNSENT] or [AjaxRequestReadyState.OPENED] state, the value of statusText will be an empty string.
   ///If the server response doesn't explicitly specify a status text, statusText will assume the default value "OK".
   String statusText;
+
   ///All the response headers or returns null if no response has been received. If a network error happened, an empty string is returned.
   Map<dynamic, dynamic> responseHeaders;
+
   ///Event type of the `XMLHttpRequest` request.
   AjaxRequestEvent event;
+
   ///Indicates the [AjaxRequestAction] that can be used to control the `XMLHttpRequest` request.
   AjaxRequestAction action;
 
-  AjaxRequest({this.data, this.method, this.url, this.isAsync, this.user, this.password,
-    this.withCredentials, this.headers, this.readyState, this.status, this.responseURL, this.responseType,
-    this.response, this.responseText, this.responseXML, this.statusText, this.responseHeaders, this.event, this.action = AjaxRequestAction.PROCEED});
+  AjaxRequest(
+      {this.data,
+      this.method,
+      this.url,
+      this.isAsync,
+      this.user,
+      this.password,
+      this.withCredentials,
+      this.headers,
+      this.readyState,
+      this.status,
+      this.responseURL,
+      this.responseType,
+      this.response,
+      this.responseText,
+      this.responseXML,
+      this.statusText,
+      this.responseHeaders,
+      this.event,
+      this.action = AjaxRequestAction.PROCEED});
 
   Map<String, dynamic> toMap() {
     return {
@@ -1341,6 +1600,7 @@ class FetchRequestAction {
 
   ///Aborts the fetch request.
   static const ABORT = const FetchRequestAction._internal(0);
+
   ///Proceeds with the fetch request.
   static const PROCEED = const FetchRequestAction._internal(1);
 
@@ -1358,9 +1618,7 @@ class FetchRequestCredential {
   FetchRequestCredential({this.type});
 
   Map<String, dynamic> toMap() {
-    return {
-      "type": type
-    };
+    return {"type": type};
   }
 }
 
@@ -1369,7 +1627,7 @@ class FetchRequestCredentialDefault extends FetchRequestCredential {
   ///The value of the credentials.
   String value;
 
-  FetchRequestCredentialDefault({type, this.value}): super(type: type);
+  FetchRequestCredentialDefault({type, this.value}) : super(type: type);
 
   Map<String, dynamic> toMap() {
     return {
@@ -1383,16 +1641,22 @@ class FetchRequestCredentialDefault extends FetchRequestCredential {
 class FetchRequestFederatedCredential extends FetchRequestCredential {
   ///Credential's identifier.
   dynamic id;
+
   ///The name associated with a credential. It should be a human-readable, public name.
   String name;
+
   ///Credential's federated identity protocol.
   String protocol;
+
   ///Credential's federated identity provider.
   String provider;
+
   ///URL pointing to an image for an icon. This image is intended for display in a credential chooser. The URL must be accessible without authentication.
   String iconURL;
 
-  FetchRequestFederatedCredential({type, this.id, this.name, this.protocol, this.provider, this.iconURL}): super(type: type);
+  FetchRequestFederatedCredential(
+      {type, this.id, this.name, this.protocol, this.provider, this.iconURL})
+      : super(type: type);
 
   Map<String, dynamic> toMap() {
     return {
@@ -1410,14 +1674,19 @@ class FetchRequestFederatedCredential extends FetchRequestCredential {
 class FetchRequestPasswordCredential extends FetchRequestCredential {
   ///Credential's identifier.
   dynamic id;
+
   ///The name associated with a credential. It should be a human-readable, public name.
   String name;
+
   ///The password of the credential.
   String password;
+
   ///URL pointing to an image for an icon. This image is intended for display in a credential chooser. The URL must be accessible without authentication.
   String iconURL;
 
-  FetchRequestPasswordCredential({type, this.id, this.name, this.password, this.iconURL}): super(type: type);
+  FetchRequestPasswordCredential(
+      {type, this.id, this.name, this.password, this.iconURL})
+      : super(type: type);
 
   Map<String, dynamic> toMap() {
     return {
@@ -1434,33 +1703,56 @@ class FetchRequestPasswordCredential extends FetchRequestCredential {
 class FetchRequest {
   ///The URL of the request.
   String url;
+
   ///The HTTP request method used of the request.
   String method;
+
   ///The HTTP request headers.
   Map<String, dynamic> headers;
+
   ///Body of the request.
   Uint8List body;
+
   ///The mode used by the request.
   String mode;
+
   ///The request credentials used by the request.
   FetchRequestCredential credentials;
+
   ///The cache mode used by the request.
   String cache;
+
   ///The redirect mode used by the request.
   String redirect;
+
   ///A String specifying no-referrer, client, or a URL.
   String referrer;
+
   ///The value of the referer HTTP header.
   String referrerPolicy;
+
   ///Contains the subresource integrity value of the request.
   String integrity;
+
   ///The keepalive option used to allow the request to outlive the page.
   bool keepalive;
+
   ///Indicates the [FetchRequestAction] that can be used to control the request.
   FetchRequestAction action;
 
-  FetchRequest({this.url, this.method, this.headers, this.body, this.mode, this.credentials,
-    this.cache, this.redirect, this.referrer, this.referrerPolicy, this.integrity, this.keepalive,
+  FetchRequest(
+      {this.url,
+      this.method,
+      this.headers,
+      this.body,
+      this.mode,
+      this.credentials,
+      this.cache,
+      this.redirect,
+      this.referrer,
+      this.referrerPolicy,
+      this.integrity,
+      this.keepalive,
       this.action = FetchRequestAction.PROCEED});
 
   Map<String, dynamic> toMap() {
@@ -1485,16 +1777,27 @@ class FetchRequest {
     return this.toMap();
   }
 
-  static FetchRequestCredential createFetchRequestCredentialFromMap(credentialsMap) {
+  static FetchRequestCredential createFetchRequestCredentialFromMap(
+      credentialsMap) {
     if (credentialsMap != null) {
       if (credentialsMap["type"] == "default") {
-        return FetchRequestCredentialDefault(type: credentialsMap["type"], value: credentialsMap["value"]);
+        return FetchRequestCredentialDefault(
+            type: credentialsMap["type"], value: credentialsMap["value"]);
       } else if (credentialsMap["type"] == "federated") {
-        return FetchRequestFederatedCredential(type: credentialsMap["type"], id: credentialsMap["id"], name: credentialsMap["name"],
-            protocol: credentialsMap["protocol"], provider: credentialsMap["provider"], iconURL: credentialsMap["iconURL"]);
+        return FetchRequestFederatedCredential(
+            type: credentialsMap["type"],
+            id: credentialsMap["id"],
+            name: credentialsMap["name"],
+            protocol: credentialsMap["protocol"],
+            provider: credentialsMap["provider"],
+            iconURL: credentialsMap["iconURL"]);
       } else if (credentialsMap["type"] == "password") {
-        return FetchRequestPasswordCredential(type: credentialsMap["type"], id: credentialsMap["id"], name: credentialsMap["name"],
-            password: credentialsMap["password"], iconURL: credentialsMap["iconURL"]);
+        return FetchRequestPasswordCredential(
+            type: credentialsMap["type"],
+            id: credentialsMap["id"],
+            name: credentialsMap["name"],
+            password: credentialsMap["password"],
+            iconURL: credentialsMap["iconURL"]);
       }
     }
     return null;
@@ -1506,20 +1809,38 @@ class ContentBlockerTriggerResourceType {
   final String _value;
   const ContentBlockerTriggerResourceType._internal(this._value);
   static ContentBlockerTriggerResourceType fromValue(String value) {
-    return (["document", "image", "style-sheet", "script", "font",
-      "media", "svg-document", "raw"].contains(value)) ? ContentBlockerTriggerResourceType._internal(value) : null;
+    return ([
+      "document",
+      "image",
+      "style-sheet",
+      "script",
+      "font",
+      "media",
+      "svg-document",
+      "raw"
+    ].contains(value))
+        ? ContentBlockerTriggerResourceType._internal(value)
+        : null;
   }
+
   String toValue() => _value;
   @override
   String toString() => _value;
 
-  static const DOCUMENT = const ContentBlockerTriggerResourceType._internal('document');
-  static const IMAGE = const ContentBlockerTriggerResourceType._internal('image');
-  static const STYLE_SHEET = const ContentBlockerTriggerResourceType._internal('style-sheet');
-  static const SCRIPT = const ContentBlockerTriggerResourceType._internal('script');
+  static const DOCUMENT =
+      const ContentBlockerTriggerResourceType._internal('document');
+  static const IMAGE =
+      const ContentBlockerTriggerResourceType._internal('image');
+  static const STYLE_SHEET =
+      const ContentBlockerTriggerResourceType._internal('style-sheet');
+  static const SCRIPT =
+      const ContentBlockerTriggerResourceType._internal('script');
   static const FONT = const ContentBlockerTriggerResourceType._internal('font');
-  static const MEDIA = const ContentBlockerTriggerResourceType._internal('media');
-  static const SVG_DOCUMENT = const ContentBlockerTriggerResourceType._internal('svg-document');
+  static const MEDIA =
+      const ContentBlockerTriggerResourceType._internal('media');
+  static const SVG_DOCUMENT =
+      const ContentBlockerTriggerResourceType._internal('svg-document');
+
   ///Any untyped load
   static const RAW = const ContentBlockerTriggerResourceType._internal('raw');
 
@@ -1529,22 +1850,27 @@ class ContentBlockerTriggerResourceType {
   int get hashCode => _value.hashCode;
 }
 
-
 ///ContentBlockerTriggerLoadType class represents the possible load type for a [ContentBlockerTrigger].
 class ContentBlockerTriggerLoadType {
   final String _value;
   const ContentBlockerTriggerLoadType._internal(this._value);
   static ContentBlockerTriggerLoadType fromValue(String value) {
-    return (["first-party", "third-party"].contains(value)) ? ContentBlockerTriggerLoadType._internal(value) : null;
+    return (["first-party", "third-party"].contains(value))
+        ? ContentBlockerTriggerLoadType._internal(value)
+        : null;
   }
+
   String toValue() => _value;
   @override
   String toString() => _value;
 
   ///FIRST_PARTY is triggered only if the resource has the same scheme, domain, and port as the main page resource.
-  static const FIRST_PARTY = const ContentBlockerTriggerLoadType._internal('first-party');
+  static const FIRST_PARTY =
+      const ContentBlockerTriggerLoadType._internal('first-party');
+
   ///THIRD_PARTY is triggered if the resource is not from the same domain as the main page resource.
-  static const THIRD_PARTY = const ContentBlockerTriggerLoadType._internal('third-party');
+  static const THIRD_PARTY =
+      const ContentBlockerTriggerLoadType._internal('third-party');
 
   bool operator ==(value) => value == _value;
 
@@ -1557,20 +1883,27 @@ class ContentBlockerActionType {
   final String _value;
   const ContentBlockerActionType._internal(this._value);
   static ContentBlockerActionType fromValue(String value) {
-    return (["block", "css-display-none", "make-https"].contains(value)) ? ContentBlockerActionType._internal(value) : null;
+    return (["block", "css-display-none", "make-https"].contains(value))
+        ? ContentBlockerActionType._internal(value)
+        : null;
   }
+
   String toValue() => _value;
   @override
   String toString() => _value;
 
   ///Stops loading of the resource. If the resource was cached, the cache is ignored.
   static const BLOCK = const ContentBlockerActionType._internal('block');
+
   ///Hides elements of the page based on a CSS selector. A selector field contains the selector list. Any matching element has its display property set to none, which hides it.
   ///
   ///**NOTE**: on Android, JavaScript must be enabled.
-  static const CSS_DISPLAY_NONE = const ContentBlockerActionType._internal('css-display-none');
+  static const CSS_DISPLAY_NONE =
+      const ContentBlockerActionType._internal('css-display-none');
+
   ///Changes a URL from http to https. URLs with a specified (nondefault) port and links using other protocols are unaffected.
-  static const MAKE_HTTPS = const ContentBlockerActionType._internal('make-https');
+  static const MAKE_HTTPS =
+      const ContentBlockerActionType._internal('make-https');
 
   bool operator ==(value) => value == _value;
 
@@ -1582,6 +1915,7 @@ class ContentBlockerActionType {
 class Cookie {
   ///The name;
   String name;
+
   ///The value;
   dynamic value;
 
@@ -1596,6 +1930,7 @@ class PermissionRequestResponseAction {
 
   ///Denies the request.
   static const DENY = const PermissionRequestResponseAction._internal(0);
+
   ///Grants origin the permission to access the given resources.
   static const GRANT = const PermissionRequestResponseAction._internal(1);
 
@@ -1609,15 +1944,15 @@ class PermissionRequestResponseAction {
 class PermissionRequestResponse {
   ///Resources granted to be accessed by origin.
   List<String> resources;
+
   ///Indicate the [PermissionRequestResponseAction] to take in response of a permission request.
   PermissionRequestResponseAction action;
 
-  PermissionRequestResponse({this.resources = const [], this.action = PermissionRequestResponseAction.DENY});
+  PermissionRequestResponse(
+      {this.resources = const [],
+      this.action = PermissionRequestResponseAction.DENY});
 
   Map<String, dynamic> toMap() {
-    return {
-      "resources": resources,
-      "action": action?.toValue()
-    };
+    return {"resources": resources, "action": action?.toValue()};
   }
 }

lib/src/webview_options.dart

@@ -4,6 +4,7 @@ import 'content_blocker.dart';
 import 'types.dart';
 
 class AndroidOptions {}
+
 class IosOptions {}
 
 class WebViewOptions {
@@ -37,84 +38,129 @@ class ChromeSafariBrowserOptions {
 }
 
 ///This class represents all the cross-platform WebView options available.
-class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOptions, IosOptions {
+class InAppWebViewOptions
+    implements WebViewOptions, BrowserOptions, AndroidOptions, IosOptions {
   ///Set to `true` to be able to listen at the [shouldOverrideUrlLoading] event. The default value is `false`.
   bool useShouldOverrideUrlLoading;
+
   ///Set to `true` to be able to listen at the [onLoadResource] event. The default value is `false`.
   bool useOnLoadResource;
+
   ///Set to `true` to be able to listen at the [onDownloadStart] event. The default value is `false`.
   bool useOnDownloadStart;
+
   ///Set to `true` to be able to listen at the [onTargetBlank] event. The default value is `false`.
   bool useOnTargetBlank;
+
   ///Set to `true` to have all the browser's cache cleared before the new window is opened. The default value is `false`.
   bool clearCache;
+
   ///Sets the user-agent for the WebView.
   ///
   ///**NOTE**: available on iOS 9.0+.
   String userAgent;
+
   ///Append to the existing user-agent. Setting userAgent will override this.
   ///
   ///**NOTE**: available on Android 17+ and on iOS 9.0+.
   String applicationNameForUserAgent;
+
   ///Set to `true` to enable JavaScript. The default value is `true`.
   bool javaScriptEnabled;
+
   ///Enables debugging of web contents (HTML / CSS / JavaScript) loaded into any WebViews of this application.
   ///This flag can be enabled in order to facilitate debugging of web layouts and JavaScript code running inside WebViews. The default is `false`.
   ///
   ///**NOTE**: on iOS the debugging mode is always enabled.
   bool debuggingEnabled;
+
   ///Set to `true` to allow JavaScript open windows without user interaction. The default value is `false`.
   bool javaScriptCanOpenWindowsAutomatically;
+
   ///Set to `true` to prevent HTML5 audio or video from autoplaying. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 10.0+.
   bool mediaPlaybackRequiresUserGesture;
+
   ///Sets the minimum font size. The default value is `8` for Android, `0` for iOS.
   int minimumFontSize;
+
   ///Define whether the vertical scrollbar should be drawn or not. The default value is `true`.
   bool verticalScrollBarEnabled;
+
   ///Define whether the horizontal scrollbar should be drawn or not. The default value is `true`.
   bool horizontalScrollBarEnabled;
+
   ///List of custom schemes that the WebView must handle. Use the [onLoadResourceCustomScheme] event to intercept resource requests with custom scheme.
   ///
   ///**NOTE**: available on iOS 11.0+.
   List<String> resourceCustomSchemes;
+
   ///List of [ContentBlocker] that are a set of rules used to block content in the browser window.
   ///
   ///**NOTE**: available on iOS 11.0+.
   List<ContentBlocker> contentBlockers;
+
   ///Sets the content mode that the WebView needs to use when loading and rendering a webpage. The default value is [InAppWebViewUserPreferredContentMode.RECOMMENDED].
   ///
   ///**NOTE**: available on iOS 13.0+.
   InAppWebViewUserPreferredContentMode preferredContentMode;
+
   ///Set to `true` to be able to listen at the [shouldInterceptAjaxRequest] event. The default value is `false`.
   bool useShouldInterceptAjaxRequest;
+
   ///Set to `true` to be able to listen at the [shouldInterceptFetchRequest] event. The default value is `false`.
   bool useShouldInterceptFetchRequest;
+
   ///Set to `true` to open a browser window with incognito mode. The default value is `false`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool incognito;
+
   ///Sets whether WebView should use browser caching. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool cacheEnabled;
+
   ///Set to `true` to make the background of the WebView transparent. If your app has a dark theme, this can prevent a white flash on initialization. The default value is `false`.
   bool transparentBackground;
+
   ///Set to `true` to disable vertical scroll. The default value is `false`.
   bool disableVerticalScroll;
+
   ///Set to `true` to disable horizontal scroll. The default value is `false`.
   bool disableHorizontalScroll;
 
-  InAppWebViewOptions({this.useShouldOverrideUrlLoading = false, this.useOnLoadResource = false, this.useOnDownloadStart = false, this.useOnTargetBlank = false,
-    this.clearCache = false, this.userAgent = "", this.applicationNameForUserAgent = "", this.javaScriptEnabled = true, this.debuggingEnabled = false, this.javaScriptCanOpenWindowsAutomatically = false,
-    this.mediaPlaybackRequiresUserGesture = true, this.minimumFontSize, this.verticalScrollBarEnabled = true, this.horizontalScrollBarEnabled = true,
-    this.resourceCustomSchemes = const [], this.contentBlockers = const [], this.preferredContentMode = InAppWebViewUserPreferredContentMode.RECOMMENDED,
-    this.useShouldInterceptAjaxRequest = false, this.useShouldInterceptFetchRequest = false, this.incognito = false, this.cacheEnabled = true, this.transparentBackground = false,
-    this.disableVerticalScroll = false, this.disableHorizontalScroll = false}) {
+  InAppWebViewOptions(
+      {this.useShouldOverrideUrlLoading = false,
+      this.useOnLoadResource = false,
+      this.useOnDownloadStart = false,
+      this.useOnTargetBlank = false,
+      this.clearCache = false,
+      this.userAgent = "",
+      this.applicationNameForUserAgent = "",
+      this.javaScriptEnabled = true,
+      this.debuggingEnabled = false,
+      this.javaScriptCanOpenWindowsAutomatically = false,
+      this.mediaPlaybackRequiresUserGesture = true,
+      this.minimumFontSize,
+      this.verticalScrollBarEnabled = true,
+      this.horizontalScrollBarEnabled = true,
+      this.resourceCustomSchemes = const [],
+      this.contentBlockers = const [],
+      this.preferredContentMode =
+          InAppWebViewUserPreferredContentMode.RECOMMENDED,
+      this.useShouldInterceptAjaxRequest = false,
+      this.useShouldInterceptFetchRequest = false,
+      this.incognito = false,
+      this.cacheEnabled = true,
+      this.transparentBackground = false,
+      this.disableVerticalScroll = false,
+      this.disableHorizontalScroll = false}) {
     if (this.minimumFontSize == null)
       this.minimumFontSize = Platform.isAndroid ? 8 : 0;
-      assert(!this.resourceCustomSchemes.contains("http") && !this.resourceCustomSchemes.contains("https"));
+    assert(!this.resourceCustomSchemes.contains("http") &&
+        !this.resourceCustomSchemes.contains("https"));
   }
 
   @override
@@ -134,7 +180,8 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
       "applicationNameForUserAgent": applicationNameForUserAgent,
       "javaScriptEnabled": javaScriptEnabled,
       "debuggingEnabled": debuggingEnabled,
-      "javaScriptCanOpenWindowsAutomatically": javaScriptCanOpenWindowsAutomatically,
+      "javaScriptCanOpenWindowsAutomatically":
+          javaScriptCanOpenWindowsAutomatically,
       "mediaPlaybackRequiresUserGesture": mediaPlaybackRequiresUserGesture,
       "verticalScrollBarEnabled": verticalScrollBarEnabled,
       "horizontalScrollBarEnabled": horizontalScrollBarEnabled,
@@ -151,15 +198,14 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
     };
   }
 
-  @override
   static InAppWebViewOptions fromMap(Map<String, dynamic> map) {
     List<ContentBlocker> contentBlockers = [];
     List<dynamic> contentBlockersMapList = map["contentBlockers"];
     if (contentBlockersMapList != null) {
       contentBlockersMapList.forEach((contentBlocker) {
         contentBlockers.add(ContentBlocker.fromMap(
-            Map<dynamic, Map<dynamic, dynamic>>.from(Map<dynamic, dynamic>.from(contentBlocker))
-        ));
+            Map<dynamic, Map<dynamic, dynamic>>.from(
+                Map<dynamic, dynamic>.from(contentBlocker))));
       });
     }
 
@@ -173,15 +219,22 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
     options.applicationNameForUserAgent = map["applicationNameForUserAgent"];
     options.javaScriptEnabled = map["javaScriptEnabled"];
     options.debuggingEnabled = map["debuggingEnabled"];
-    options.javaScriptCanOpenWindowsAutomatically = map["javaScriptCanOpenWindowsAutomatically"];
-    options.mediaPlaybackRequiresUserGesture = map["mediaPlaybackRequiresUserGesture"];
+    options.javaScriptCanOpenWindowsAutomatically =
+        map["javaScriptCanOpenWindowsAutomatically"];
+    options.mediaPlaybackRequiresUserGesture =
+        map["mediaPlaybackRequiresUserGesture"];
     options.verticalScrollBarEnabled = map["verticalScrollBarEnabled"];
     options.horizontalScrollBarEnabled = map["horizontalScrollBarEnabled"];
-    options.resourceCustomSchemes = List<String>.from(map["resourceCustomSchemes"] ?? []);
+    options.resourceCustomSchemes =
+        List<String>.from(map["resourceCustomSchemes"] ?? []);
     options.contentBlockers = contentBlockers;
-    options.preferredContentMode = InAppWebViewUserPreferredContentMode.fromValue(map["preferredContentMode"]);
-    options.useShouldInterceptAjaxRequest = map["useShouldInterceptAjaxRequest"];
-    options.useShouldInterceptFetchRequest = map["useShouldInterceptFetchRequest"];
+    options.preferredContentMode =
+        InAppWebViewUserPreferredContentMode.fromValue(
+            map["preferredContentMode"]);
+    options.useShouldInterceptAjaxRequest =
+        map["useShouldInterceptAjaxRequest"];
+    options.useShouldInterceptFetchRequest =
+        map["useShouldInterceptFetchRequest"];
     options.incognito = map["incognito"];
     options.cacheEnabled = map["cacheEnabled"];
     options.transparentBackground = map["transparentBackground"];
@@ -192,92 +245,124 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
 }
 
 ///This class represents all the Android-only WebView options available.
-class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOptions {
+class AndroidInAppWebViewOptions
+    implements WebViewOptions, BrowserOptions, AndroidOptions {
   ///Sets the text zoom of the page in percent. The default value is `100`.
   int textZoom;
+
   ///Set to `true` to have the session cookie cache cleared before the new window is opened.
   bool clearSessionCache;
+
   ///Set to `true` if the WebView should use its built-in zoom mechanisms. The default value is `false`.
   bool builtInZoomControls;
+
   ///Set to `true` if the WebView should display on-screen zoom controls when using the built-in zoom mechanisms. The default value is `false`.
   bool displayZoomControls;
+
   ///Set to `false` if the WebView should not support zooming using its on-screen zoom controls and gestures. The default value is `true`.
   bool supportZoom;
+
   ///Set to `true` if you want the database storage API is enabled. The default value is `false`.
   bool databaseEnabled;
+
   ///Set to `true` if you want the DOM storage API is enabled. The default value is `false`.
   bool domStorageEnabled;
+
   ///Set to `true` if the WebView should enable support for the "viewport" HTML meta tag or should use a wide viewport.
   ///When the value of the setting is false, the layout width is always set to the width of the WebView control in device-independent (CSS) pixels.
   ///When the value is true and the page contains the viewport meta tag, the value of the width specified in the tag is used.
   ///If the page does not contain the tag or does not provide a width, then a wide viewport will be used. The default value is `true`.
   bool useWideViewPort;
+
   ///Sets whether Safe Browsing is enabled. Safe Browsing allows WebView to protect against malware and phishing attacks by verifying the links.
   ///Safe Browsing is enabled by default for devices which support it.
   ///
   ///**NOTE**: available on Android 26+.
   bool safeBrowsingEnabled;
+
   ///Configures the WebView's behavior when a secure origin attempts to load a resource from an insecure origin.
   ///
   ///**NOTE**: available on Android 21+.
   AndroidInAppWebViewMixedContentMode mixedContentMode;
+
   ///Enables or disables content URL access within WebView. Content URL access allows WebView to load content from a content provider installed in the system. The default value is `true`.
   bool allowContentAccess;
+
   ///Enables or disables file access within WebView. Note that this enables or disables file system access only.
   ///Assets and resources are still accessible using \file:///android_asset` and `file:///android_res`. The default value is `true`.
   bool allowFileAccess;
+
   ///Sets whether JavaScript running in the context of a file scheme URL should be allowed to access content from other file scheme URLs.
   ///Note that the value of this setting is ignored if the value of [allowFileAccessFromFileURLs] is `true`.
   ///Note too, that this setting affects only JavaScript access to file scheme resources. The default value is `false`.
   bool allowFileAccessFromFileURLs;
+
   ///Sets whether JavaScript running in the context of a file scheme URL should be allowed to access content from any origin.
   ///Note that this setting affects only JavaScript access to file scheme resources.
   ///This includes access to content from other file scheme URLs. The default value is `false`.
   bool allowUniversalAccessFromFileURLs;
+
   ///Sets the path to the Application Caches files. In order for the Application Caches API to be enabled, this option must be set a path to which the application can write.
   ///This option is used one time: repeated calls are ignored.
   String appCachePath;
+
   ///Sets whether the WebView should not load image resources from the network (resources accessed via http and https URI schemes). The default value is `false`.
   bool blockNetworkImage;
+
   ///Sets whether the WebView should not load resources from the network. The default value is `false`.
   bool blockNetworkLoads;
+
   ///Overrides the way the cache is used. The way the cache is used is based on the navigation type. For a normal page load, the cache is checked and content is re-validated as needed.
   ///When navigating back, content is not revalidated, instead the content is just retrieved from the cache. The default value is [AndroidInAppWebViewCacheMode.LOAD_DEFAULT].
   AndroidInAppWebViewCacheMode cacheMode;
+
   ///Sets the cursive font family name. The default value is `"cursive"`.
   String cursiveFontFamily;
+
   ///Sets the default fixed font size. The default value is `16`.
   int defaultFixedFontSize;
+
   ///Sets the default font size. The default value is `16`.
   int defaultFontSize;
+
   ///Sets the default text encoding name to use when decoding html pages. The default value is `"UTF-8"`.
   String defaultTextEncodingName;
+
   ///Disables the action mode menu items according to menuItems flag.
   ///
   ///**NOTE**: available on Android 24+.
   AndroidInAppWebViewModeMenuItem disabledActionModeMenuItems;
+
   ///Sets the fantasy font family name. The default value is `"fantasy"`.
   String fantasyFontFamily;
+
   ///Sets the fixed font family name. The default value is `"monospace"`.
   String fixedFontFamily;
+
   ///Set the force dark mode for this WebView. The default value is [AndroidInAppWebViewForceDark.FORCE_DARK_OFF].
   ///
   ///**NOTE**: available on Android 29+.
   AndroidInAppWebViewForceDark forceDark;
+
   ///Sets whether Geolocation API is enabled. The default value is `true`.
   bool geolocationEnabled;
+
   ///Sets the underlying layout algorithm. This will cause a re-layout of the WebView.
   AndroidInAppWebViewLayoutAlgorithm layoutAlgorithm;
+
   ///Sets whether the WebView loads pages in overview mode, that is, zooms out the content to fit on screen by width.
   ///This setting is taken into account when the content width is greater than the width of the WebView control, for example, when [useWideViewPort] is enabled.
   ///The default value is `false`.
   bool loadWithOverviewMode;
+
   ///Sets whether the WebView should load image resources. Note that this method controls loading of all images, including those embedded using the data URI scheme.
   ///Note that if the value of this setting is changed from false to true, all images resources referenced by content currently displayed by the WebView are loaded automatically.
   ///The default value is `true`.
   bool loadsImagesAutomatically;
+
   ///Sets the minimum logical font size. The default is `8`.
   int minimumLogicalFontSize;
+
   ///Sets the initial scale for this WebView. 0 means default. The behavior for the default scale depends on the state of [useWideViewPort] and [loadWithOverviewMode].
   ///If the content fits into the WebView control by width, then the zoom is set to 100%. For wide content, the behavior depends on the state of [loadWithOverviewMode].
   ///If its value is true, the content will be zoomed out to be fit by width into the WebView control, otherwise not.
@@ -285,43 +370,82 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
   ///Please note that unlike the scale properties in the viewport meta tag, this method doesn't take the screen density into account.
   ///The default is `0`.
   int initialScale;
+
   ///Tells the WebView whether it needs to set a node. The default value is `true`.
   bool needInitialFocus;
+
   ///Sets whether this WebView should raster tiles when it is offscreen but attached to a window.
   ///Turning this on can avoid rendering artifacts when animating an offscreen WebView on-screen.
   ///Offscreen WebViews in this mode use more memory. The default value is `false`.
   ///
   ///**NOTE**: available on Android 23+.
   bool offscreenPreRaster;
+
   ///Sets the sans-serif font family name. The default value is `"sans-serif"`.
   String sansSerifFontFamily;
+
   ///Sets the serif font family name. The default value is `"sans-serif"`.
   String serifFontFamily;
+
   ///Sets the standard font family name. The default value is `"sans-serif"`.
   String standardFontFamily;
+
   ///Sets whether the WebView should save form data. In Android O, the platform has implemented a fully functional Autofill feature to store form data.
   ///Therefore, the Webview form data save feature is disabled. Note that the feature will continue to be supported on older versions of Android as before.
   bool saveFormData;
+
   ///Boolean value to enable third party cookies in the WebView.
   ///Used on Android Lollipop and above only as third party cookies are enabled by default on Android Kitkat and below and on iOS.
   ///The default value is `true`.
   ///
   ///**NOTE**: available on Android 21+.
   bool thirdPartyCookiesEnabled;
+
   ///Boolean value to enable Hardware Acceleration in the WebView.
   ///The default value is `true`.
   bool hardwareAcceleration;
 
-  AndroidInAppWebViewOptions({this.textZoom = 100, this.clearSessionCache = false, this.builtInZoomControls = false, this.displayZoomControls = false, this.supportZoom = true, this.databaseEnabled = false,
-    this.domStorageEnabled = false, this.useWideViewPort = true, this.safeBrowsingEnabled = true, this.mixedContentMode,
-    this.allowContentAccess = true, this.allowFileAccess = true, this.allowFileAccessFromFileURLs = false, this.allowUniversalAccessFromFileURLs = false,
-    this.appCachePath, this.blockNetworkImage = false, this.blockNetworkLoads = false, this.cacheMode = AndroidInAppWebViewCacheMode.LOAD_DEFAULT,
-    this.cursiveFontFamily = "cursive", this.defaultFixedFontSize = 16, this.defaultFontSize = 16, this.defaultTextEncodingName = "UTF-8",
-    this.disabledActionModeMenuItems, this.fantasyFontFamily = "fantasy", this.fixedFontFamily = "monospace", this.forceDark = AndroidInAppWebViewForceDark.FORCE_DARK_OFF,
-    this.geolocationEnabled = true, this.layoutAlgorithm, this.loadWithOverviewMode = true, this.loadsImagesAutomatically = true,
-    this.minimumLogicalFontSize = 8, this.needInitialFocus = true, this.offscreenPreRaster = false, this.sansSerifFontFamily = "sans-serif", this.serifFontFamily = "sans-serif",
-    this.standardFontFamily = "sans-serif", this.saveFormData = true, this.thirdPartyCookiesEnabled = true, this.hardwareAcceleration = true, this.initialScale = 0
-  });
+  AndroidInAppWebViewOptions(
+      {this.textZoom = 100,
+      this.clearSessionCache = false,
+      this.builtInZoomControls = false,
+      this.displayZoomControls = false,
+      this.supportZoom = true,
+      this.databaseEnabled = false,
+      this.domStorageEnabled = false,
+      this.useWideViewPort = true,
+      this.safeBrowsingEnabled = true,
+      this.mixedContentMode,
+      this.allowContentAccess = true,
+      this.allowFileAccess = true,
+      this.allowFileAccessFromFileURLs = false,
+      this.allowUniversalAccessFromFileURLs = false,
+      this.appCachePath,
+      this.blockNetworkImage = false,
+      this.blockNetworkLoads = false,
+      this.cacheMode = AndroidInAppWebViewCacheMode.LOAD_DEFAULT,
+      this.cursiveFontFamily = "cursive",
+      this.defaultFixedFontSize = 16,
+      this.defaultFontSize = 16,
+      this.defaultTextEncodingName = "UTF-8",
+      this.disabledActionModeMenuItems,
+      this.fantasyFontFamily = "fantasy",
+      this.fixedFontFamily = "monospace",
+      this.forceDark = AndroidInAppWebViewForceDark.FORCE_DARK_OFF,
+      this.geolocationEnabled = true,
+      this.layoutAlgorithm,
+      this.loadWithOverviewMode = true,
+      this.loadsImagesAutomatically = true,
+      this.minimumLogicalFontSize = 8,
+      this.needInitialFocus = true,
+      this.offscreenPreRaster = false,
+      this.sansSerifFontFamily = "sans-serif",
+      this.serifFontFamily = "sans-serif",
+      this.standardFontFamily = "sans-serif",
+      this.saveFormData = true,
+      this.thirdPartyCookiesEnabled = true,
+      this.hardwareAcceleration = true,
+      this.initialScale = 0});
 
   @override
   Map<String, dynamic> toMap() {
@@ -369,7 +493,6 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
     };
   }
 
-  @override
   static AndroidInAppWebViewOptions fromMap(Map<String, dynamic> map) {
     AndroidInAppWebViewOptions options = new AndroidInAppWebViewOptions();
     options.textZoom = map["textZoom"];
@@ -381,25 +504,32 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
     options.domStorageEnabled = map["domStorageEnabled"];
     options.useWideViewPort = map["useWideViewPort"];
     options.safeBrowsingEnabled = map["safeBrowsingEnabled"];
-    options.mixedContentMode = AndroidInAppWebViewMixedContentMode.fromValue(map["mixedContentMode"]);
+    options.mixedContentMode =
+        AndroidInAppWebViewMixedContentMode.fromValue(map["mixedContentMode"]);
     options.allowContentAccess = map["allowContentAccess"];
     options.allowFileAccess = map["allowFileAccess"];
     options.allowFileAccessFromFileURLs = map["allowFileAccessFromFileURLs"];
-    options.allowUniversalAccessFromFileURLs = map["allowUniversalAccessFromFileURLs"];
+    options.allowUniversalAccessFromFileURLs =
+        map["allowUniversalAccessFromFileURLs"];
     options.appCachePath = map["appCachePath"];
     options.blockNetworkImage = map["blockNetworkImage"];
     options.blockNetworkLoads = map["blockNetworkLoads"];
-    options.cacheMode = AndroidInAppWebViewCacheMode.fromValue(map["cacheMode"]);
+    options.cacheMode =
+        AndroidInAppWebViewCacheMode.fromValue(map["cacheMode"]);
     options.cursiveFontFamily = map["cursiveFontFamily"];
     options.defaultFixedFontSize = map["defaultFixedFontSize"];
     options.defaultFontSize = map["defaultFontSize"];
     options.defaultTextEncodingName = map["defaultTextEncodingName"];
-    options.disabledActionModeMenuItems = AndroidInAppWebViewModeMenuItem.fromValue(map["disabledActionModeMenuItems"]);
+    options.disabledActionModeMenuItems =
+        AndroidInAppWebViewModeMenuItem.fromValue(
+            map["disabledActionModeMenuItems"]);
     options.fantasyFontFamily = map["fantasyFontFamily"];
     options.fixedFontFamily = map["fixedFontFamily"];
-    options.forceDark = AndroidInAppWebViewForceDark.fromValue(map["forceDark"]);
+    options.forceDark =
+        AndroidInAppWebViewForceDark.fromValue(map["forceDark"]);
     options.geolocationEnabled = map["geolocationEnabled"];
-    options.layoutAlgorithm = AndroidInAppWebViewLayoutAlgorithm.fromValue(map["layoutAlgorithm"]);
+    options.layoutAlgorithm =
+        AndroidInAppWebViewLayoutAlgorithm.fromValue(map["layoutAlgorithm"]);
     options.loadWithOverviewMode = map["loadWithOverviewMode"];
     options.loadsImagesAutomatically = map["loadsImagesAutomatically"];
     options.minimumLogicalFontSize = map["minimumLogicalFontSize"];
@@ -417,57 +547,79 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
 }
 
 ///This class represents all the iOS-only WebView options available.
-class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptions {
+class IosInAppWebViewOptions
+    implements WebViewOptions, BrowserOptions, IosOptions {
   ///Set to `true` to disable the bouncing of the WebView when the scrolling has reached an edge of the content. The default value is `false`.
   bool disallowOverScroll;
+
   ///Set to `true` to allow a viewport meta tag to either disable or restrict the range of user scaling. The default value is `false`.
   bool enableViewportScale;
+
   ///Set to `true` if you want the WebView suppresses content rendering until it is fully loaded into memory. The default value is `false`.
   bool suppressesIncrementalRendering;
+
   ///Set to `true` to allow AirPlay. The default value is `true`.
   bool allowsAirPlayForMediaPlayback;
+
   ///Set to `true` to allow the horizontal swipe gestures trigger back-forward list navigations. The default value is `true`.
   bool allowsBackForwardNavigationGestures;
+
   ///Set to `true` to allow that pressing on a link displays a preview of the destination for the link. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool allowsLinkPreview;
+
   ///Set to `true` if you want that the WebView should always allow scaling of the webpage, regardless of the author's intent.
   ///The ignoresViewportScaleLimits property overrides the `user-scalable` HTML property in a webpage. The default value is `false`.
   bool ignoresViewportScaleLimits;
+
   ///Set to `true` to allow HTML5 media playback to appear inline within the screen layout, using browser-supplied controls rather than native controls.
   ///For this to work, add the `webkit-playsinline` attribute to any `<video>` elements. The default value is `false`.
   bool allowsInlineMediaPlayback;
+
   ///Set to `true` to allow HTML5 videos play picture-in-picture. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool allowsPictureInPictureMediaPlayback;
+
   ///A Boolean value indicating whether warnings should be shown for suspected fraudulent content such as phishing or malware.
   ///According to the official documentation, this feature is currently available in the following region: China.
   ///The default value is `true`.
   ///
   ///**NOTE**: available on iOS 13.0+.
   bool isFraudulentWebsiteWarningEnabled;
+
   ///The level of granularity with which the user can interactively select content in the web view.
   ///The default value is [IosInAppWebViewSelectionGranularity.DYNAMIC]
   IosInAppWebViewSelectionGranularity selectionGranularity;
+
   ///Specifying a dataDetectoryTypes value adds interactivity to web content that matches the value.
   ///For example, Safari adds a link to “apple.com” in the text “Visit apple.com” if the dataDetectorTypes property is set to [IosInAppWebViewDataDetectorTypes.LINK].
   ///The default value is [IosInAppWebViewDataDetectorTypes.NONE].
   ///
   ///**NOTE**: available on iOS 10.0+.
   List<IosInAppWebViewDataDetectorTypes> dataDetectorTypes;
+
   ///Set `true` if shared cookies from `HTTPCookieStorage.shared` should used for every load request in the WebView.
   ///The default value is `false`.
   ///
   ///**NOTE**: available on iOS 11.0+.
   bool sharedCookiesEnabled;
 
-  IosInAppWebViewOptions({this.disallowOverScroll = false, this.enableViewportScale = false, this.suppressesIncrementalRendering = false, this.allowsAirPlayForMediaPlayback = true,
-    this.allowsBackForwardNavigationGestures = true, this.allowsLinkPreview = true, this.ignoresViewportScaleLimits = false, this.allowsInlineMediaPlayback = false,
-    this.allowsPictureInPictureMediaPlayback = true, this.isFraudulentWebsiteWarningEnabled = true,
-    this.selectionGranularity = IosInAppWebViewSelectionGranularity.DYNAMIC, this.dataDetectorTypes = const [IosInAppWebViewDataDetectorTypes.NONE], this.sharedCookiesEnabled = false
-  });
+  IosInAppWebViewOptions(
+      {this.disallowOverScroll = false,
+      this.enableViewportScale = false,
+      this.suppressesIncrementalRendering = false,
+      this.allowsAirPlayForMediaPlayback = true,
+      this.allowsBackForwardNavigationGestures = true,
+      this.allowsLinkPreview = true,
+      this.ignoresViewportScaleLimits = false,
+      this.allowsInlineMediaPlayback = false,
+      this.allowsPictureInPictureMediaPlayback = true,
+      this.isFraudulentWebsiteWarningEnabled = true,
+      this.selectionGranularity = IosInAppWebViewSelectionGranularity.DYNAMIC,
+      this.dataDetectorTypes = const [IosInAppWebViewDataDetectorTypes.NONE],
+      this.sharedCookiesEnabled = false});
 
   @override
   Map<String, dynamic> toMap() {
@@ -481,11 +633,13 @@ class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptio
       "enableViewportScale": enableViewportScale,
       "suppressesIncrementalRendering": suppressesIncrementalRendering,
       "allowsAirPlayForMediaPlayback": allowsAirPlayForMediaPlayback,
-      "allowsBackForwardNavigationGestures": allowsBackForwardNavigationGestures,
+      "allowsBackForwardNavigationGestures":
+          allowsBackForwardNavigationGestures,
       "allowsLinkPreview": allowsLinkPreview,
       "ignoresViewportScaleLimits": ignoresViewportScaleLimits,
       "allowsInlineMediaPlayback": allowsInlineMediaPlayback,
-      "allowsPictureInPictureMediaPlayback": allowsPictureInPictureMediaPlayback,
+      "allowsPictureInPictureMediaPlayback":
+          allowsPictureInPictureMediaPlayback,
       "isFraudulentWebsiteWarningEnabled": isFraudulentWebsiteWarningEnabled,
       "selectionGranularity": selectionGranularity.toValue(),
       "dataDetectorTypes": dataDetectorTypesList,
@@ -493,26 +647,34 @@ class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptio
     };
   }
 
-  @override
   static IosInAppWebViewOptions fromMap(Map<String, dynamic> map) {
     List<IosInAppWebViewDataDetectorTypes> dataDetectorTypes = [];
-    List<String> dataDetectorTypesList = List<String>.from(map["dataDetectorTypes"] ?? []);
+    List<String> dataDetectorTypesList =
+        List<String>.from(map["dataDetectorTypes"] ?? []);
     dataDetectorTypesList.forEach((dataDetectorType) {
-      dataDetectorTypes.add(IosInAppWebViewDataDetectorTypes.fromValue(dataDetectorType));
+      dataDetectorTypes
+          .add(IosInAppWebViewDataDetectorTypes.fromValue(dataDetectorType));
     });
 
     IosInAppWebViewOptions options = new IosInAppWebViewOptions();
     options.disallowOverScroll = map["disallowOverScroll"];
     options.enableViewportScale = map["enableViewportScale"];
-    options.suppressesIncrementalRendering = map["suppressesIncrementalRendering"];
-    options.allowsAirPlayForMediaPlayback = map["allowsAirPlayForMediaPlayback"];
-    options.allowsBackForwardNavigationGestures = map["allowsBackForwardNavigationGestures"];
+    options.suppressesIncrementalRendering =
+        map["suppressesIncrementalRendering"];
+    options.allowsAirPlayForMediaPlayback =
+        map["allowsAirPlayForMediaPlayback"];
+    options.allowsBackForwardNavigationGestures =
+        map["allowsBackForwardNavigationGestures"];
     options.allowsLinkPreview = map["allowsLinkPreview"];
     options.ignoresViewportScaleLimits = map["ignoresViewportScaleLimits"];
     options.allowsInlineMediaPlayback = map["allowsInlineMediaPlayback"];
-    options.allowsPictureInPictureMediaPlayback = map["allowsPictureInPictureMediaPlayback"];
-    options.isFraudulentWebsiteWarningEnabled = map["isFraudulentWebsiteWarningEnabled"];
-    options.selectionGranularity = IosInAppWebViewSelectionGranularity.fromValue(map["selectionGranularity"]);
+    options.allowsPictureInPictureMediaPlayback =
+        map["allowsPictureInPictureMediaPlayback"];
+    options.isFraudulentWebsiteWarningEnabled =
+        map["isFraudulentWebsiteWarningEnabled"];
+    options.selectionGranularity =
+        IosInAppWebViewSelectionGranularity.fromValue(
+            map["selectionGranularity"]);
     options.dataDetectorTypes = dataDetectorTypes;
     options.sharedCookiesEnabled = map["sharedCookiesEnabled"];
     return options;
@@ -520,18 +682,26 @@ class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptio
 }
 
 ///This class represents all the cross-platform [InAppBrowser] options available.
-class InAppBrowserOptions implements BrowserOptions, AndroidOptions, IosOptions {
+class InAppBrowserOptions
+    implements BrowserOptions, AndroidOptions, IosOptions {
   ///Set to `true` to create the browser and load the page, but not show it. Omit or set to `false` to have the browser open and load normally.
   ///The default value is `false`.
   bool hidden;
+
   ///Set to `false` to hide the toolbar at the top of the WebView. The default value is `true`.
   bool toolbarTop;
+
   ///Set the custom background color of the toolbar at the top.
   String toolbarTopBackgroundColor;
+
   ///Set to `true` to hide the url bar on the toolbar at the top. The default value is `false`.
   bool hideUrlBar;
 
-  InAppBrowserOptions({this.hidden = false, this.toolbarTop = true, this.toolbarTopBackgroundColor = "", this.hideUrlBar = false});
+  InAppBrowserOptions(
+      {this.hidden = false,
+      this.toolbarTop = true,
+      this.toolbarTopBackgroundColor = "",
+      this.hideUrlBar = false});
 
   @override
   Map<String, dynamic> toMap() {
@@ -543,7 +713,6 @@ class InAppBrowserOptions implements BrowserOptions, AndroidOptions, IosOptions
     };
   }
 
-  @override
   static InAppBrowserOptions fromMap(Map<String, dynamic> map) {
     InAppBrowserOptions options = new InAppBrowserOptions();
     options.hidden = map["hidden"];
@@ -558,14 +727,21 @@ class InAppBrowserOptions implements BrowserOptions, AndroidOptions, IosOptions
 class AndroidInAppBrowserOptions implements BrowserOptions, AndroidOptions {
   ///Set to `true` if you want the title should be displayed. The default value is `false`.
   bool hideTitleBar;
+
   ///Set the action bar's title.
   String toolbarTopFixedTitle;
+
   ///Set to `false` to not close the InAppBrowser when the user click on the back button and the WebView cannot go back to the history. The default value is `true`.
   bool closeOnCannotGoBack;
+
   ///Set to `false` to hide the progress bar at the bottom of the toolbar at the top. The default value is `true`.
   bool progressBar;
 
-  AndroidInAppBrowserOptions({this.hideTitleBar = true, this.toolbarTopFixedTitle = "", this.closeOnCannotGoBack = true, this.progressBar = true});
+  AndroidInAppBrowserOptions(
+      {this.hideTitleBar = true,
+      this.toolbarTopFixedTitle = "",
+      this.closeOnCannotGoBack = true,
+      this.progressBar = true});
 
   @override
   Map<String, dynamic> toMap() {
@@ -577,7 +753,6 @@ class AndroidInAppBrowserOptions implements BrowserOptions, AndroidOptions {
     };
   }
 
-  @override
   static AndroidInAppBrowserOptions fromMap(Map<String, dynamic> map) {
     AndroidInAppBrowserOptions options = new AndroidInAppBrowserOptions();
     options.hideTitleBar = map["hideTitleBar"];
@@ -592,24 +767,37 @@ class AndroidInAppBrowserOptions implements BrowserOptions, AndroidOptions {
 class IosInAppBrowserOptions implements BrowserOptions, IosOptions {
   ///Set to `false` to hide the toolbar at the bottom of the WebView. The default value is `true`.
   bool toolbarBottom;
+
   ///Set the custom background color of the toolbar at the bottom.
   String toolbarBottomBackgroundColor;
+
   ///Set to `true` to set the toolbar at the bottom translucent. The default value is `true`.
   bool toolbarBottomTranslucent;
+
   ///Set the custom text for the close button.
   String closeButtonCaption;
+
   ///Set the custom color for the close button.
   String closeButtonColor;
+
   ///Set the custom modal presentation style when presenting the WebView. The default value is [IosWebViewOptionsPresentationStyle.FULL_SCREEN].
   IosWebViewOptionsPresentationStyle presentationStyle;
+
   ///Set to the custom transition style when presenting the WebView. The default value is [IosWebViewOptionsTransitionStyle.COVER_VERTICAL].
   IosWebViewOptionsTransitionStyle transitionStyle;
+
   ///Set to `false` to hide the spinner when the WebView is loading a page. The default value is `true`.
   bool spinner;
 
-  IosInAppBrowserOptions({this.toolbarBottom = true, this.toolbarBottomBackgroundColor = "", this.toolbarBottomTranslucent = true, this.closeButtonCaption = "",
-    this.closeButtonColor = "", this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
-    this.transitionStyle = IosWebViewOptionsTransitionStyle.COVER_VERTICAL, this.spinner = true});
+  IosInAppBrowserOptions(
+      {this.toolbarBottom = true,
+      this.toolbarBottomBackgroundColor = "",
+      this.toolbarBottomTranslucent = true,
+      this.closeButtonCaption = "",
+      this.closeButtonColor = "",
+      this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
+      this.transitionStyle = IosWebViewOptionsTransitionStyle.COVER_VERTICAL,
+      this.spinner = true});
 
   @override
   Map<String, dynamic> toMap() {
@@ -625,7 +813,6 @@ class IosInAppBrowserOptions implements BrowserOptions, IosOptions {
     };
   }
 
-  @override
   static IosInAppBrowserOptions fromMap(Map<String, dynamic> map) {
     IosInAppBrowserOptions options = new IosInAppBrowserOptions();
     options.toolbarBottom = map["toolbarBottom"];
@@ -633,27 +820,39 @@ class IosInAppBrowserOptions implements BrowserOptions, IosOptions {
     options.toolbarBottomTranslucent = map["toolbarBottomTranslucent"];
     options.closeButtonCaption = map["closeButtonCaption"];
     options.closeButtonColor = map["closeButtonColor"];
-    options.presentationStyle = IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
-    options.transitionStyle = IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
+    options.presentationStyle =
+        IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
+    options.transitionStyle =
+        IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
     options.spinner = map["spinner"];
     return options;
   }
 }
 
 ///This class represents all the Android-only [ChromeSafariBrowser] options available.
-class AndroidChromeCustomTabsOptions implements ChromeSafariBrowserOptions, AndroidOptions {
+class AndroidChromeCustomTabsOptions
+    implements ChromeSafariBrowserOptions, AndroidOptions {
   ///Set to `false` if you don't want the default share button. The default value is `true`.
   bool addShareButton;
+
   ///Set to `false` if the title shouldn't be shown in the custom tab. The default value is `true`.
   bool showTitle;
+
   ///Set the custom background color of the toolbar.
   String toolbarBackgroundColor;
+
   ///Set to `true` to enable the url bar to hide as the user scrolls down on the page. The default value is `false`.
   bool enableUrlBarHiding;
+
   ///Set to `true` to enable Instant Apps. The default value is `false`.
   bool instantAppsEnabled;
 
-  AndroidChromeCustomTabsOptions({this.addShareButton = true, this.showTitle = true, this.toolbarBackgroundColor = "", this.enableUrlBarHiding = false, this.instantAppsEnabled = false});
+  AndroidChromeCustomTabsOptions(
+      {this.addShareButton = true,
+      this.showTitle = true,
+      this.toolbarBackgroundColor = "",
+      this.enableUrlBarHiding = false,
+      this.instantAppsEnabled = false});
 
   @override
   Map<String, dynamic> toMap() {
@@ -666,9 +865,9 @@ class AndroidChromeCustomTabsOptions implements ChromeSafariBrowserOptions, Andr
     };
   }
 
-  @override
   static AndroidChromeCustomTabsOptions fromMap(Map<String, dynamic> map) {
-    AndroidChromeCustomTabsOptions options = new AndroidChromeCustomTabsOptions();
+    AndroidChromeCustomTabsOptions options =
+        new AndroidChromeCustomTabsOptions();
     options.addShareButton = map["addShareButton"];
     options.showTitle = map["showTitle"];
     options.toolbarBackgroundColor = map["toolbarBackgroundColor"];
@@ -682,27 +881,38 @@ class AndroidChromeCustomTabsOptions implements ChromeSafariBrowserOptions, Andr
 class IosSafariOptions implements ChromeSafariBrowserOptions, IosOptions {
   ///Set to `true` if Reader mode should be entered automatically when it is available for the webpage. The default value is `false`.
   bool entersReaderIfAvailable;
+
   ///Set to `true` to enable bar collapsing. The default value is `false`.
   bool barCollapsingEnabled;
+
   ///Set the custom style for the dismiss button. The default value is [IosSafariOptionsDismissButtonStyle.DONE].
   ///
   ///**NOTE**: available on iOS 11.0+.
   IosSafariOptionsDismissButtonStyle dismissButtonStyle;
+
   ///Set the custom background color of the navigation bar and the toolbar.
   ///
   ///**NOTE**: available on iOS 10.0+.
   String preferredBarTintColor;
+
   ///Set the custom color of the control buttons on the navigation bar and the toolbar.
   ///
   ///**NOTE**: available on iOS 10.0+.
   String preferredControlTintColor;
+
   ///Set the custom modal presentation style when presenting the WebView. The default value is [IosWebViewOptionsPresentationStyle.FULL_SCREEN].
   IosWebViewOptionsPresentationStyle presentationStyle;
+
   ///Set to the custom transition style when presenting the WebView. The default value is [IosWebViewOptionsTransitionStyle.COVER_VERTICAL].
   IosWebViewOptionsTransitionStyle transitionStyle;
 
-  IosSafariOptions({this.entersReaderIfAvailable = false, this.barCollapsingEnabled = false, this.dismissButtonStyle = IosSafariOptionsDismissButtonStyle.DONE,
-    this.preferredBarTintColor = "", this.preferredControlTintColor = "", this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
+  IosSafariOptions(
+      {this.entersReaderIfAvailable = false,
+      this.barCollapsingEnabled = false,
+      this.dismissButtonStyle = IosSafariOptionsDismissButtonStyle.DONE,
+      this.preferredBarTintColor = "",
+      this.preferredControlTintColor = "",
+      this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
       this.transitionStyle = IosWebViewOptionsTransitionStyle.COVER_VERTICAL});
 
   @override
@@ -718,16 +928,18 @@ class IosSafariOptions implements ChromeSafariBrowserOptions, IosOptions {
     };
   }
 
-  @override
   static IosSafariOptions fromMap(Map<String, dynamic> map) {
     IosSafariOptions options = new IosSafariOptions();
     options.entersReaderIfAvailable = map["entersReaderIfAvailable"];
     options.barCollapsingEnabled = map["barCollapsingEnabled"];
-    options.dismissButtonStyle = IosSafariOptionsDismissButtonStyle.fromValue(map["dismissButtonStyle"]);
+    options.dismissButtonStyle =
+        IosSafariOptionsDismissButtonStyle.fromValue(map["dismissButtonStyle"]);
     options.preferredBarTintColor = map["preferredBarTintColor"];
     options.preferredControlTintColor = map["preferredControlTintColor"];
-    options.presentationStyle = IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
-    options.transitionStyle = IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
+    options.presentationStyle =
+        IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
+    options.transitionStyle =
+        IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
     return options;
   }
 }

pubspec.yaml

 name: flutter_inappwebview
 description: A Flutter plugin that allows you to add an inline webview or open an in-app browser window.
-version: 2.0.1
+version: 2.0.1+1
 author: Lorenzo Pichilli <pichillilorenzo@gmail.com>
 homepage: https://github.com/pichillilorenzo/flutter_inappwebview