fix migration to Swift 5, updated README.md, fix #149

.idea/codeStyles/Project.xml

+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <codeStyleSettings language="XML">
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+      <arrangement>
+        <rules>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
+  </code_scheme>
+</component>
\ No newline at end of file

README.md

@@ -25,7 +25,7 @@ Because of [Flutter AndroidX compatibility](https://flutter.dev/docs/development
 If you are starting a new fresh app, you need to create the Flutter App with `flutter create -i swift` (see [flutter/flutter#13422 (comment)](https://github.com/flutter/flutter/issues/13422#issuecomment-392133780)), otherwise, you will get this message:
 ```
 === BUILD TARGET flutter_inappbrowser OF PROJECT Pods WITH CONFIGURATION Debug ===
-The “Swift Language Version” (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. Supported values are: 3.0, 4.0, 4.2. This setting can be set in the build settings editor.
+The “Swift Language Version” (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. Supported values are: 3.0, 4.0, 4.2, 5.0. This setting can be set in the build settings editor.
 ```
 
 If you still have this problem, try to edit iOS `Podfile` like this (see [#15](https://github.com/pichillilorenzo/flutter_inappbrowser/issues/15)):
@@ -38,7 +38,7 @@ end
 post_install do |installer|
   installer.pods_project.targets.each do |target|
     target.build_configurations.each do |config|
-      config.build_settings['SWIFT_VERSION'] = '4.0'  # required by simple_permission
+      config.build_settings['SWIFT_VERSION'] = '5.0'  # required by simple_permission
       config.build_settings['ENABLE_BITCODE'] = 'NO'
     end
   end
@@ -70,8 +70,8 @@ See the online [docs](https://pub.dartlang.org/documentation/flutter_inappbrowse
 ### `InAppWebView` class
 Flutter Widget for adding an **inline native WebView** integrated into the flutter widget tree.
 
-[AndroidView](https://docs.flutter.io/flutter/widgets/AndroidView-class.html) and [UiKitView](https://docs.flutter.io/flutter/widgets/UiKitView-class.html) are not officially stable yet!
-So, if you want use it, you can but you will have some limitation such as the inability to use the keyboard!
+The plugin relies on Flutter's mechanism (in developers preview) for embedding Android and iOS native views: [AndroidView](https://docs.flutter.io/flutter/widgets/AndroidView-class.html) and [UiKitView](https://docs.flutter.io/flutter/widgets/UiKitView-class.html).
+Known issues are tagged with the [platform-views](https://github.com/flutter/flutter/labels/a%3A%20platform-views) label in the [Flutter official repo](https://github.com/flutter/flutter).
 
 To use `InAppWebView` class on iOS you need to opt-in for the embedded views preview by adding a boolean property to the app's `Info.plist` file, with the key `io.flutter.embedded_views_preview` and the value `YES`.
 
@@ -121,7 +121,7 @@ class _MyAppState extends State<MyApp> {
                 padding: EdgeInsets.all(20.0),
                 child: Text("CURRENT URL\n${ (url.length > 50) ? url.substring(0, 50) + "..." : url }"),
               ),
-              (progress != 1.0) ? LinearProgressIndicator(value: progress) : null,
+              (progress != 1.0) ? LinearProgressIndicator(value: progress) : Container(),
               Expanded(
                 child: Container(
                   margin: const EdgeInsets.all(10.0),

example/ios/Flutter/flutter_export_environment.sh

+#!/bin/sh
+# 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_inappbrowser/example"
+export "FLUTTER_TARGET=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-release"
+export "FLUTTER_BUILD_NAME=1.0.0"
+export "FLUTTER_BUILD_NUMBER=1"

example/ios/Podfile

@@ -61,7 +61,7 @@ post_install do |installer|
   installer.pods_project.targets.each do |target|
     target.build_configurations.each do |config|
       config.build_settings['ENABLE_BITCODE'] = 'NO'
-      config.build_settings['SWIFT_VERSION'] = '4.0'
+      config.build_settings['SWIFT_VERSION'] = '5.0'
     end
   end
 end

example/ios/Runner.xcodeproj/project.pbxproj

@@ -179,7 +179,7 @@
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
 						DevelopmentTeam = PFP8UV45Y6;
-						LastSwiftMigration = 1100;
+						LastSwiftMigration = 1020;
 					};
 				};
 			};
@@ -256,7 +256,7 @@
 			);
 			inputPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
-				"${PODS_ROOT}/../.symlinks/flutter/ios/Flutter.framework",
+				"${PODS_ROOT}/../.symlinks/flutter/ios-release/Flutter.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_inappbrowser/flutter_inappbrowser.framework",
 			);
 			name = "[CP] Embed Pods Frameworks";
@@ -447,7 +447,6 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
 				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
@@ -475,7 +474,6 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.pichillilorenzo.flutter_inappbrowserExample;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
 				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};

example/lib/inline_example.screen.dart

@@ -46,7 +46,7 @@ class _InlineExampleScreenState extends State<InlineExampleScreen> {
       ),
       Container( 
         padding: EdgeInsets.all(10.0),
-        child: progress < 1.0 ? LinearProgressIndicator(value: progress) : null
+        child: progress < 1.0 ? LinearProgressIndicator(value: progress) : Container()
       ),
       Expanded(
         child: Container(

ios/Classes/SwiftFlutterPlugin.swift

@@ -350,7 +350,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
         let tmpController = UIViewController()
         let baseWindowLevel = UIApplication.shared.keyWindow?.windowLevel
         self.tmpWindow?.rootViewController = tmpController
-        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1)
+        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1.0)
         self.tmpWindow?.makeKeyAndVisible()
         
         let browserOptions: InAppBrowserOptions
@@ -466,7 +466,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
         let tmpController = UIViewController()
         let baseWindowLevel = UIApplication.shared.keyWindow?.windowLevel
         self.tmpWindow?.rootViewController = tmpController
-        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1)
+        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1.0)
         self.tmpWindow?.makeKeyAndVisible()
         
         let browserOptions: InAppBrowserOptions
@@ -536,7 +536,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
                 DispatchQueue.main.async(execute: {() -> Void in
                     if webViewController != nil {
                         let baseWindowLevel = UIApplication.shared.keyWindow?.windowLevel
-                        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1)
+                        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1.0)
                         self.tmpWindow?.makeKeyAndVisible()
                         UIApplication.shared.delegate?.window??.makeKeyAndVisible()
                         self.tmpWindow?.rootViewController?.present(webViewController!, animated: true, completion: nil)

ios/flutter_inappbrowser.podspec

@@ -18,6 +18,6 @@ A new Flutter plugin.
   s.dependency 'Flutter'
   
   s.ios.deployment_target = '8.0'
-  s.swift_version = '4.0'
+  s.swift_version = '5.0'
 end