updated android and ios options, added downloader on android, fixed back-button webview android

android/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     package="com.pichillilorenzo.flutter_inappbrowser">
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <application
         android:theme="@style/AppTheme" >

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppBrowserOptions.java

 package com.pichillilorenzo.flutter_inappbrowser;
 
-import android.os.Build;
-import android.support.annotation.RequiresApi;
 import android.util.Log;
 
 import java.lang.reflect.Field;
@@ -14,11 +12,14 @@ public class InAppBrowserOptions {
     boolean clearCache = false;
     boolean clearSessionCache = false;
     String userAgent = "";
-    boolean spinner = true;
+    boolean progressBar = true;
     boolean hidden = false;
     boolean toolbarTop = true;
-    String toolbarTopColor = "toolbarTopColor";
+    String toolbarTopBackgroundColor = "";
+    String toolbarTopFixedTitle = "";
     boolean hideUrlBar = false;
+    boolean hideTitleBar = false;
+    boolean closeOnCannotGoBack = true;
     boolean mediaPlaybackRequiresUserGesture = true;
     boolean javaScriptCanOpenWindowsAutomatically = false;
     boolean javaScriptEnabled = true;
@@ -29,15 +30,16 @@ public class InAppBrowserOptions {
     boolean useWideViewPort = true;
     boolean safeBrowsingEnabled = true;
 
-    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
     public void parse(HashMap<String, Object> options) {
         Iterator it = options.entrySet().iterator();
         while (it.hasNext()) {
             Map.Entry<String, Object> pair = (Map.Entry<String, Object>)it.next();
             try {
-                this.getClass().getField(pair.getKey()).set(this, pair.getValue());
-            } catch (NoSuchFieldException | IllegalAccessException  e) {
-                // silent
+                this.getClass().getDeclaredField(pair.getKey()).set(this, pair.getValue());
+            } catch (NoSuchFieldException e) {
+                Log.d("InAppBrowserOptions", e.getMessage());
+            } catch (IllegalAccessException  e) {
+                Log.d("InAppBrowserOptions", e.getMessage());
             }
         }
     }
@@ -48,7 +50,7 @@ public class InAppBrowserOptions {
             try {
                 options.put(f.getName(), f.get(this));
             } catch (IllegalAccessException e) {
-                // silent
+                Log.d("InAppBrowserOptions", e.getMessage());
             }
         }
         return options;

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppBrowserWebChromeClient.java

@@ -4,8 +4,6 @@ import android.content.Intent;
 import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Build;
-import android.support.annotation.RequiresApi;
-import android.util.Log;
 import android.view.View;
 import android.webkit.ValueCallback;
 import android.webkit.WebChromeClient;
@@ -44,8 +42,8 @@ public class InAppBrowserWebChromeClient extends WebChromeClient {
     @Override
     public void onReceivedTitle(WebView view, String title) {
         super.onReceivedTitle(view, title);
-        if (activity.getSupportActionBar() != null)
-            activity.getSupportActionBar().setTitle(title);
+        if (activity.actionBar != null && activity.options.toolbarTopFixedTitle.isEmpty())
+            activity.actionBar.setTitle(title);
     }
 
     @Override

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppBrowserWebViewClient.java

@@ -150,4 +150,5 @@ public class InAppBrowserWebViewClient extends WebViewClient {
         // By default handle 401 like we'd normally do!
         super.onReceivedHttpAuthRequest(view, handler, host, realm);
     }
+
 }

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/RequestPermissionHandler.java

+package com.pichillilorenzo.flutter_inappbrowser;
+
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public abstract class RequestPermissionHandler implements ActivityCompat.OnRequestPermissionsResultCallback {
+
+    public static int REQUEST_CODE_WRITE_EXTERNAL_STORAGE = 0;
+
+    private static Map<Integer, List<Runnable>> actionDictionary = new HashMap<>();
+
+    public static void checkAndRun(Activity activity, String permission, int requestCode, Runnable runnable) {
+
+        int permissionCheck = ContextCompat.checkSelfPermission(activity.getApplicationContext(), permission);
+
+        if (permissionCheck != PackageManager.PERMISSION_GRANTED) {
+            if (actionDictionary.containsKey(requestCode))
+                actionDictionary.get(requestCode).add(runnable);
+            else
+                actionDictionary.put(requestCode, Arrays.asList(runnable));
+            ActivityCompat.requestPermissions(activity, new String[]{permission}, requestCode);
+        }
+        else
+            runnable.run();
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
+        if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
+            List<Runnable> callbacks = actionDictionary.get(requestCode);
+            for (Runnable runnable : callbacks) {
+                runnable.run();
+                callbacks.remove(runnable);
+            }
+        }
+    }
+
+}

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/WebViewActivity.java

 package com.pichillilorenzo.flutter_inappbrowser;
 
-import android.annotation.TargetApi;
-import android.app.ProgressDialog;
+import android.Manifest;
+import android.app.Activity;
+import android.app.DownloadManager;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.graphics.Color;
+import android.graphics.drawable.ColorDrawable;
+import android.net.Uri;
 import android.os.Build;
+import android.os.Environment;
 import android.support.annotation.RequiresApi;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.app.ActionBar;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.util.Log;
-import android.view.Display;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
-import android.view.WindowManager;
 import android.webkit.CookieManager;
+import android.webkit.DownloadListener;
+import android.webkit.URLUtil;
 import android.webkit.ValueCallback;
 import android.webkit.WebSettings;
 import android.webkit.WebView;
+import android.widget.AutoCompleteTextView;
+import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.SearchView;
+import android.widget.Toast;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -31,6 +43,7 @@ import io.flutter.plugin.common.MethodChannel;
 public class WebViewActivity extends AppCompatActivity {
 
     WebView webView;
+    ActionBar actionBar;
     InAppBrowserWebViewClient inAppBrowserWebViewClient;
     InAppBrowserWebChromeClient inAppBrowserWebChromeClient;
     SearchView searchView;
@@ -38,23 +51,23 @@ public class WebViewActivity extends AppCompatActivity {
     ProgressBar progressBar;
     public boolean isLoading = false;
 
-    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_web_view);
 
         webView = findViewById(R.id.webView);
-        progressBar = findViewById(R.id.progressBar);
-        progressBar.setMax(100);
 
         Bundle b = getIntent().getExtras();
         String url = b.getString("url");
 
         options = new InAppBrowserOptions();
         options.parse((HashMap<String, Object>) b.getSerializable("options"));
+
         InAppBrowser.webViewActivity = this;
 
+        actionBar = getSupportActionBar();
+
         prepareWebView();
 
         webView.loadUrl(url);
@@ -69,47 +82,96 @@ public class WebViewActivity extends AppCompatActivity {
         inAppBrowserWebViewClient = new InAppBrowserWebViewClient(this);
         webView.setWebViewClient(inAppBrowserWebViewClient);
 
+        final Activity activity = this;
+
+        webView.setDownloadListener(new DownloadListener() {
+            @Override
+            public void onDownloadStart(final String url, final String userAgent,
+                                        final String contentDisposition, final String mimetype,
+                                        final long contentLength) {
+
+                RequestPermissionHandler.checkAndRun(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE, RequestPermissionHandler.REQUEST_CODE_WRITE_EXTERNAL_STORAGE, new Runnable(){
+                    @Override
+                    public void run(){
+                        DownloadManager.Request request = new DownloadManager.Request(
+                                Uri.parse(url));
+
+                        final String filename = URLUtil.guessFileName(url, contentDisposition, mimetype);
+                        request.allowScanningByMediaScanner();
+                        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); //Notify client once download is completed!
+                        request.setVisibleInDownloadsUi(true);
+                        request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, filename);
+                        DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
+                        if (dm != null) {
+                            dm.enqueue(request);
+                            Toast.makeText(getApplicationContext(), "Downloading File: " + filename, //To notify the Client that the file is being downloaded
+                                    Toast.LENGTH_LONG).show();
+                        }
+                        else {
+                            Toast.makeText(getApplicationContext(), "Cannot Download File: " + filename, //To notify the Client that the file cannot be downloaded
+                                    Toast.LENGTH_LONG).show();
+                        }
+                    }
+                });
+            }
+        });
+
         WebSettings settings = webView.getSettings();
 
+        if (options.hidden)
+            hide();
+        else
+            show();
+
         settings.setJavaScriptEnabled(options.javaScriptEnabled);
         settings.setJavaScriptCanOpenWindowsAutomatically(options.javaScriptCanOpenWindowsAutomatically);
         settings.setBuiltInZoomControls(options.builtInZoomControls);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
             settings.setSafeBrowsingEnabled(options.safeBrowsingEnabled);
-        }
 
         settings.setMediaPlaybackRequiresUserGesture(options.mediaPlaybackRequiresUserGesture);
 
         settings.setDatabaseEnabled(options.databaseEnabled);
         settings.setDomStorageEnabled(options.domStorageEnabled);
 
-        if (!options.userAgent.isEmpty()) {
+        if (!options.userAgent.isEmpty())
             settings.setUserAgentString(options.userAgent);
-        }
 
-        if (options.clearCache) {
+        if (options.clearCache)
             clearCache();
-        } else if (options.clearSessionCache) {
+        else if (options.clearSessionCache)
             CookieManager.getInstance().removeSessionCookie();
-        }
 
         // Enable Thirdparty Cookies on >=Android 5.0 device
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
           CookieManager.getInstance().setAcceptThirdPartyCookies(webView,true);
-        }
 
         settings.setLoadWithOverviewMode(true);
         settings.setUseWideViewPort(options.useWideViewPort);
         settings.setSupportZoom(options.supportZoom);
 
         // fix webview scaling
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
             settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.TEXT_AUTOSIZING);
-        }
-        else {
+        else
             settings.setTextZoom(100);
+
+        if (options.progressBar) {
+            progressBar = findViewById(R.id.progressBar);
+            progressBar.setMax(100);
         }
 
+        actionBar.setDisplayShowTitleEnabled(!options.hideTitleBar);
+
+        if (!options.toolbarTop)
+            actionBar.hide();
+
+        if (!options.toolbarTopBackgroundColor.isEmpty())
+            actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor(options.toolbarTopBackgroundColor)));
+
+        if (!options.toolbarTopFixedTitle.isEmpty())
+            actionBar.setTitle(options.toolbarTopFixedTitle);
+
     }
 
     @Override
@@ -119,13 +181,25 @@ public class WebViewActivity extends AppCompatActivity {
         inflater.inflate(R.menu.menu_main, menu);
 
         searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView();
+        searchView.setFocusable(true);
+
+        if (options.hideUrlBar)
+            menu.findItem(R.id.menu_search).setVisible(false);
+
         searchView.setQuery(webView.getUrl(), false);
-        getSupportActionBar().setTitle(webView.getTitle());
+
+        if (options.toolbarTopFixedTitle.isEmpty())
+            actionBar.setTitle(webView.getTitle());
 
         searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
             @Override
             public boolean onQueryTextSubmit(String query) {
-                webView.loadUrl(query);
+                if (!query.isEmpty()) {
+                    webView.loadUrl(query);
+                    searchView.setQuery("", false);
+                    searchView.setIconified(true);
+                    return true;
+                }
                 return false;
             }
 
@@ -133,6 +207,26 @@ public class WebViewActivity extends AppCompatActivity {
             public boolean onQueryTextChange(String newText) {
                 return false;
             }
+
+        });
+
+        searchView.setOnCloseListener(new SearchView.OnCloseListener() {
+            @Override
+            public boolean onClose() {
+                if (searchView.getQuery().toString().isEmpty())
+                    searchView.setQuery(webView.getUrl(), false);
+                return false;
+            }
+        });
+
+        searchView.setOnQueryTextFocusChangeListener(new View.OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View view, boolean b) {
+                if (!b) {
+                    searchView.setQuery("", false);
+                    searchView.setIconified(true);
+                }
+            }
         });
 
         return true;
@@ -158,7 +252,10 @@ public class WebViewActivity extends AppCompatActivity {
 
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         if ((keyCode == KeyEvent.KEYCODE_BACK)) {
-            goBack();
+            if (canGoBack())
+                goBack();
+            else if (options.closeOnCannotGoBack)
+                close();
             return true;
         }
         return super.onKeyDown(keyCode, event);

android/src/main/res/layout/activity_web_view.xml

@@ -4,6 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:clickable="true"
     android:focusableInTouchMode="true"
     android:orientation="vertical"
     tools:context=".WebViewActivity">

android/src/main/res/menu/menu_main.xml

@@ -44,6 +44,6 @@
         android:id="@+id/menu_search"
         android:title="@string/menu_search"
         appcompat:actionViewClass="android.widget.SearchView"
-        appcompat:showAsAction="ifRoom" />
+        appcompat:showAsAction="ifRoom|withText" />
 
 </menu>

example/lib/main.dart

@@ -67,6 +67,8 @@ class _MyAppState extends State<MyApp> {
         body: new Center(
           child: new RaisedButton(onPressed: () {
             inAppBrowser.open("https://flutter.io/", options: {
+              //"toolbarTopFixedTitle": "Fixed title",
+              "hideUrlBar": true,
               //"toolbarTop": false,
               //"toolbarBottom": false
             });

ios/Classes/InAppBrowserOptions.swift

@@ -18,10 +18,10 @@ public class InAppBrowserOptions: NSObject {
     var hidden = false
     var disallowOverScroll = false
     var toolbarTop = true
-    var toolbarTopColor = ""
+    var toolbarTopBackgroundColor = ""
     var toolbarTopTranslucent = true
     var toolbarBottom = true
-    var toolbarBottomColor = ""
+    var toolbarBottomBackgroundColor = ""
     var toolbarBottomTranslucent = true
     var hideUrlBar = false
     var presentationStyle = 0 //fullscreen

ios/Classes/InAppBrowserWebViewController.swift

@@ -141,8 +141,8 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         }
         
         if (browserOptions?.toolbarTop)! {
-            if browserOptions?.toolbarTopColor != "" {
-                self.toolbarTop.backgroundColor = color(fromHexString: (browserOptions?.toolbarTopColor)!)
+            if browserOptions?.toolbarTopBackgroundColor != "" {
+                self.toolbarTop.backgroundColor = color(fromHexString: (browserOptions?.toolbarTopBackgroundColor)!)
             }
         }
         else {
@@ -156,8 +156,8 @@ class InAppBrowserWebViewController: UIViewController, WKUIDelegate, WKNavigatio
         }
         
         if (browserOptions?.toolbarBottom)! {
-            if browserOptions?.toolbarBottomColor != "" {
-                self.toolbarBottom.backgroundColor = color(fromHexString: (browserOptions?.toolbarBottomColor)!)
+            if browserOptions?.toolbarBottomBackgroundColor != "" {
+                self.toolbarBottom.backgroundColor = color(fromHexString: (browserOptions?.toolbarBottomBackgroundColor)!)
             }
             self.toolbarBottom.isTranslucent = (browserOptions?.toolbarBottomTranslucent)!
         }