Webview and HTML5

WebView and HTML5 <video>

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I'm piecing together a cheapo app that amongst other things "frames" some of our websites... Pretty simple with the WebViewClient... until I hit the video. The video is done as HTML5 elements, and these work fine and dandy on Chrome, iPhones, and now that we fixed the encoding issues it works great on Android... in the native browser. Now the rub: WebView doesn't like it. At all. I can click on the poster image, and nothing happens. Googling, I found http://www.codelark.com/2010/05/12/android-viewing-video-from-embedded-webview/which is close, but seems to be based on a 'link' (as in a href...) instead of a video element. (onDownloadListener does not appear to get invoked on video elements...) I also see references to overriding onShowCustomView, but that seems to not get called on video elements... nor does shouldOverrideUrlLoading.. I would rather not get into "pull xml from the server, reformat it in the app".. by keeping the story layout on the server, I can control the content a bit better without forcing people to keep updating an app. So if I can convince WebView to handle tags like the native browser, that would be best. I'm clearly missing something obvious.. but I have no clue what. android  html5  video  webview  android-webview share | improve this question edited  Oct 21 '11 at 7:38 mdelolmo 1,924 6 24 asked  Sep 28 '10 at 16:49 brian moore 183 1 3 6

Please see: code.google.com/p/android/issues/detail?id=22254 –  BoD  Nov 25 '11 at 12:28 feedback

12 Answers

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up vote 38 down vote accepted

I answer this topic just in case someone read it and is interested on the result. It is possible to view a video element (video html5 tag) within a WebView, but I must say I had to deal with it for few days. These are the steps I had to follow so far: -Find a properly encoded video -When initializing the WebView, set the JavaScript, Plug-ins the WebViewClient and the WebChromeClient. url = new String("http://broken-links.com/tests/video/"); mWebView = (WebView) findViewById(R.id.webview); mWebView.setWebChromeClient(chromeClient); mWebView.setWebViewClient(wvClient); mWebView.getSettings().setJavaScriptEnabled(true); mWebView.getSettings().setPluginsEnabled(true); mWebView.loadUrl(url); -Handle the onShowCustomView in the WebChromeClient object. @Override public void onShowCustomView(View view, CustomViewCallback callback) {     super.onShowCustomView(view, callback);     if (view instanceof FrameLayout){         FrameLayout frame = (FrameLayout) view;         if (frame.getFocusedChild() instanceof VideoView){             VideoView video = (VideoView) frame.getFocusedChild();             frame.removeView(video);             a.setContentView(video);             video.setOnCompletionListener(this);             video.setOnErrorListener(this);             video.start();         }     } } -Handle the onCompletion and the onError events for the video, in order to get back to the web view. public void onCompletion(MediaPlayer mp) {     Log.d(TAG, "Video completo");     a.setContentView(R.layout.main);     WebView wb = (WebView) a.findViewById(R.id.webview);     a.initWebView(); } But now I should say there are still an important issue. I can play it only once. The second time I click on the video dispatcher (either the poster or some play button), it does nothing. I would also like the video to play inside the WebView frame, instead of opening the Media Player window, but this is for me a secondary issue. I hope it helps somebody, and I would also thank any comment or suggestion. Saludos, terrícolas. share | improve this answer answered  Oct 7 '10 at 14:34 mdelolmo 1,924 6 24

i donot run any result,my screen is black. i want to know if this need thead. my code is too long to posy here.can you give me some contact way or open a another topic. –  pengwang  Oct 8 '10 at 2:59   Are you completely sure is not an encoding issue? Try with the URL I posted. Obviously it has to work with the native browser –  mdelolmo  Oct 8 '10 at 14:49   thanks, mdelolmo! that got my onShowCustomView to work... will have to play with it. Note that the emulator (at least on Linux) doesn't like playing videos much at all, even things a real android will play fine. And encoding is a bit of a pain... took a while to get things set up here so that the droids would stream. –  brian moore  Oct 8 '10 at 22:44   Thanks mdelolmo! I tried to figure out the issue with it only playing once and I wrote it up in an answer to this question. –  littleFluffyKitty  Jan 9 '11 at 4:49 9   what is "a"? like that activity would that be? –  Collin Price  Mar 8 at 3:21 show 2 more comments feedback

up vote 20 down vote

mdelolmo's answer was incredibly helpful, but like he said, the video only plays once and then you can't open it again. I looked into this a bit and here is what I found, in case any weary WebView travelers like myself stumble on this post in the future. First off, I looked at the VideoView and MediaPlayer's documentation and got a better sense of how those work. I strongly recommend those. Then, I looked at the source code to see how the Android Browser does it. Do a page find and go look at how they handle onShowCustomView(). They keep a reference to the CustomViewCallbackand to the custom view. With all of that, and with mdelolmo's answer in mind, when you are done with the video, all you need to do is two things. First, on the VideoView that you saved a reference to, call stopPlayback() that will release the MediaPlayer to be used later elsewhere. You can see it in the VideoView source code. Second, on the CustomViewCallback you saved a reference to callCustomViewCallback.onCustomViewHidden(). After doing those two things, you can click on the same video or any other video and it will open like before. No need to restart the entire WebView. Hope that helps. share | improve this answer answered  Jan 9 '11 at 4:48 littleFluffyKitty 2,037 1 21 70

Actually I kinda solved it too, I just didn't remember to post the solution (shame on me). Just like you, I had to have a look to Android browser's code, and well, not much to add, I used the onCompletion listener to stop the Player instead and had to set visibility's a couple of times, but I would buy your solution. Regards! –  mdelolmo Jan 10 '11 at 7:57   Google Code Search has been retired, I think this version of BrowserActivity.java (from Froyo) roughly corresponds to the one described here: github.com/android/platform_packages_apps_browser/blob/… –  spacemanaki  Jan 24 at 19:12   @spacemanki's linked code doesn't contain any mentions of VideoView in the whole repo. I guess BrowserActivity does it differently now. I even went back to the Eclair release. Can't find any usage. –  Max Howell  Mar 22 at 18:56 feedback

up vote 6 down vote

I know this thread is several months old, but I found a solution for playing the video inside the WebView without doing it fullscreen (but still in the media player...). So far, I didn't find any hint on this in the internet so maybe this is also interesting for others. I'm still struggling on some issues (i.e. placing the media player in the right section of the screen, don't know why I'm doing it wrong but it's a relatively small issue I think...). In the Custom ChromeClient specify LayoutParams: // 768x512 is the size of my video FrameLayout.LayoutParams LayoutParameters =                                      new FrameLayout.LayoutParams (768, 512); My onShowCustomView method looks like this: public void onShowCustomView(final View view, final CustomViewCallback callback) {      // super.onShowCustomView(view, callback);      if (view instanceof FrameLayout) {          this.mCustomViewContainer = (FrameLayout) view;          this.mCustomViewCallback = callback;          this.mContentView = (WebView) this.kameha.findViewById(R.id.webview);          if (this.mCustomViewContainer.getFocusedChild() instanceof VideoView) {              this.mCustomVideoView = (VideoView)                                      this.mCustomViewContainer.getFocusedChild();              this.mCustomViewContainer.setVisibility(View.VISIBLE);              final int viewWidth = this.mContentView.getWidth();              final int viewLeft = (viewWidth - 1024) / 2;              // get the x-position for the video (I'm porting an iPad-Webapp to Xoom,              // so I can use those numbers... you have to find your own of course...              this.LayoutParameters.leftMargin = viewLeft + 256;              this.LayoutParameters.topMargin = 128;              // just add this view so the webview underneath will still be visible,              // but apply the LayoutParameters specified above              this.kameha.addContentView(this.mCustomViewContainer,                                              this.LayoutParameters);              this.mCustomVideoView.setOnCompletionListener(this);              this.mCustomVideoView.setOnErrorListener(this);              // handle clicks on the screen (turning off the video) so you can still              // navigate in your WebView without having the video lying over it              this.mCustomVideoView.setOnFocusChangeListener(this);              this.mCustomVideoView.start();          }      }  } So, I hope I could help... I too had to play around with video-Encoding and saw different kinds of using the WebView with html5 video - in the end my working code was a wild mix of different code-parts I found in the internet and some things I had to figure out by myself. It really was a pain in the a*. share | improve this answer edited  Oct 17 '11 at 2:49 Bostone 8,399 8 61 117 answered  Aug 9 '11 at 12:09 A-M 61 1 1

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up vote 3 down vote

After long research, I got this thing working. See the following code: Test.java import android.app.Activity; import android.os.Bundle; import android.view.KeyEvent; public class Test extends Activity {     HTML5WebView mWebView;     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         mWebView = new HTML5WebView(this);         if (savedInstanceState != null) {             mWebView.restoreState(savedInstanceState);         } else {                 mWebView.loadUrl("http://192.168.1.18/xxxxxxxxxxxxxxxx/");         }         setContentView(mWebView.getLayout());     }     @Override     public void onSaveInstanceState(Bundle outState) {         super.onSaveInstanceState(outState);         mWebView.saveState(outState);     }     @Override     public void onStop() {         super.onStop();         mWebView.stopLoading();     }     @Override     public boolean onKeyDown(int keyCode, KeyEvent event) {         if (keyCode == KeyEvent.KEYCODE_BACK) {             if (mWebView.inCustomView()) {                 mWebView.hideCustomView();             //  mWebView.goBack();                 //mWebView.goBack();                 return true;             }         }         return super.onKeyDown(keyCode, event);     } } HTML%VIDEO.java package com.ivz.idemandtest; import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.util.AttributeSet; import android.util.Log; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.webkit.GeolocationPermissions; import android.webkit.WebChromeClient; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.FrameLayout; public class HTML5WebView extends WebView {     private Context                             mContext;     private MyWebChromeClient                   mWebChromeClient;     private View                                mCustomView;     private FrameLayout                         mCustomViewContainer;     private WebChromeClient.CustomViewCallback  mCustomViewCallback;     private FrameLayout                         mContentView;     private FrameLayout                         mBrowserFrameLayout;     private FrameLayout                         mLayout;     static final String LOGTAG = "HTML5WebView";     private void init(Context context) {         mContext = context;             Activity a = (Activity) mContext;         mLayout = new FrameLayout(context);         mBrowserFrameLayout = (FrameLayout) LayoutInflater.from(a).inflate(R.layout.custom_screen, null);         mContentView = (FrameLayout) mBrowserFrameLayout.findViewById(R.id.main_content);         mCustomViewContainer = (FrameLayout) mBrowserFrameLayout.findViewById(R.id.fullscreen_custom_content);         mLayout.addView(mBrowserFrameLayout, COVER_SCREEN_PARAMS);         // Configure the webview         WebSettings s = getSettings();         s.setBuiltInZoomControls(true);         s.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NARROW_COLUMNS);         s.setUseWideViewPort(true);         s.setLoadWithOverviewMode(true);       //  s.setSavePassword(true);         s.setSaveFormData(true);         s.setJavaScriptEnabled(true);         mWebChromeClient = new MyWebChromeClient();         setWebChromeClient(mWebChromeClient);         setWebViewClient(new WebViewClient()); setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);         // enable navigator.geolocation        // s.setGeolocationEnabled(true);        // s.setGeolocationDatabasePath("/data/data/org.itri.html5webview/databases/");         // enable Web Storage: localStorage, sessionStorage         s.setDomStorageEnabled(true);         mContentView.addView(this);     }     public HTML5WebView(Context context) {         super(context);         init(context);     }     public HTML5WebView(Context context, AttributeSet attrs) {         super(context, attrs);         init(context);     }     public HTML5WebView(Context context, AttributeSet attrs, int defStyle) {         super(context, attrs, defStyle);         init(context);     }     public FrameLayout getLayout() {         return mLayout;     }     public boolean inCustomView() {         return (mCustomView != null);     }     public void hideCustomView() {         mWebChromeClient.onHideCustomView();     }     @Override     public boolean onKeyDown(int keyCode, KeyEvent event) {         if (keyCode == KeyEvent.KEYCODE_BACK) {             if ((mCustomView == null) && canGoBack()){                 goBack();                 return true;             }         }         return super.onKeyDown(keyCode, event);     }     private class MyWebChromeClient extends WebChromeClient {         private Bitmap      mDefaultVideoPoster;         private View        mVideoProgressView;         @Override         public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback)         {             //Log.i(LOGTAG, "here in on ShowCustomView");             HTML5WebView.this.setVisibility(View.GONE);             // if a view already exists then immediately terminate the new one             if (mCustomView != null) {                 callback.onCustomViewHidden();                 return;             }             mCustomViewContainer.addView(view);             mCustomView = view;             mCustomViewCallback = callback;             mCustomViewContainer.setVisibility(View.VISIBLE);         }         @Override         public void onHideCustomView() {             System.out.println("customview hideeeeeeeeeeeeeeeeeeeeeeeeeee");             if (mCustomView == null)                 return;                     // Hide the custom view.             mCustomView.setVisibility(View.GONE);             // Remove the custom view from its container.             mCustomViewContainer.removeView(mCustomView);             mCustomView = null;             mCustomViewContainer.setVisibility(View.GONE);             mCustomViewCallback.onCustomViewHidden();             HTML5WebView.this.setVisibility(View.VISIBLE);             HTML5WebView.this.goBack();             //Log.i(LOGTAG, "set it to webVew");         }         @Override         public View getVideoLoadingProgressView() {             //Log.i(LOGTAG, "here in on getVideoLoadingPregressView");             if (mVideoProgressView == null) {                 LayoutInflater inflater = LayoutInflater.from(mContext);                 mVideoProgressView = inflater.inflate(R.layout.video_loading_progress, null);             }             return mVideoProgressView;         }          @Override          public void onReceivedTitle(WebView view, String title) {             ((Activity) mContext).setTitle(title);          }          @Override          public void onProgressChanged(WebView view, int newProgress) {              ((Activity) mContext).getWindow().setFeatureInt(Window.FEATURE_PROGRESS, newProgress*100);          }          @Override          public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {              callback.invoke(origin, true, false);          }     }     static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS =         new FrameLayout.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT); } custom_screen.xml <?xml version="1.0" encoding="utf-8"?> <!-- Copyright (C) 2009 The Android Open Source Project      Licensed under the Apache License, Version 2.0 (the "License");      you may not use this file except in compliance with the License.      You may obtain a copy of the License at           http://www.apache.org/licenses/LICENSE-2.0      Unless required by applicable law or agreed to in writing, software      distributed under the License is distributed on an "AS IS" BASIS,      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.      See the License for the specific language governing permissions and      limitations under the License. --> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android">     <FrameLayout android:id="@+id/fullscreen_custom_content"         android:visibility="gone"         android:background="@color/black"         android:layout_width="match_parent"         android:layout_height="match_parent"     />     <LinearLayout android:orientation="vertical"         android:layout_width="match_parent"         android:layout_height="match_parent">         <LinearLayout android:id="@+id/error_console"             android:layout_width="match_parent"             android:layout_height="wrap_content"         />         <FrameLayout android:id="@+id/main_content"             android:layout_width="match_parent"             android:layout_height="match_parent"         />     </LinearLayout> </FrameLayout> video_loading_progress.xml <?xml version="1.0" encoding="utf-8"?> <!-- Copyright (C) 2009 The Android Open Source Project      Licensed under the Apache License, Version 2.0 (the "License");      you may not use this file except in compliance with the License.      You may obtain a copy of the License at           http://www.apache.org/licenses/LICENSE-2.0      Unless required by applicable law or agreed to in writing, software      distributed under the License is distributed on an "AS IS" BASIS,      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.      See the License for the specific language governing permissions and      limitations under the License. --> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"          android:id="@+id/progress_indicator"          android:orientation="vertical"          android:layout_centerInParent="true"          android:layout_width="wrap_content"          android:layout_height="wrap_content">        <ProgressBar android:id="@android:id/progress"            style="?android:attr/progressBarStyleLarge"            android:layout_gravity="center"            android:layout_width="wrap_content"            android:layout_height="wrap_content" />        <TextView android:paddingTop="5dip"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center"            android:text="@string/loading_video" android:textSize="14sp"            android:textColor="?android:attr/textColorPrimary" />  </LinearLayout> colors.xml <?xml version="1.0" encoding="utf-8"?> <!-- /* //device/apps/common/assets/res/any/http_authentication_colors.xml ** ** Copyright 2006, The Android Open Source Project ** ** Licensed under the Apache License, Version 2.0 (the "License"); ** you may not use this file except in compliance with the License. ** You may obtain a copy of the License at ** **     http://www.apache.org/licenses/LICENSE-2.0 ** ** Unless required by applicable law or agreed to in writing, software ** distributed under the License is distributed on an "AS IS" BASIS, ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ** See the License for the specific language governing permissions and ** limitations under the License. */ --> <!-- FIXME: Change the name of this file!  It is now being used generically     for the browser --> <resources>     <color name="username_text">#ffffffff</color>     <color name="username_edit">#ff000000</color>     <color name="password_text">#ffffffff</color>     <color name="password_edit">#ff000000</color>     <color name="ssl_text_label">#ffffffff</color>     <color name="ssl_text_value">#ffffffff</color>     <color name="white">#ffffffff</color>     <color name="black">#ff000000</color>     <color name="geolocation_permissions_prompt_background">#ffdddddd</color> </resources> Manifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"       package="com.test"       android:versionCode="1"       android:versionName="1.0">     <uses-sdk android:minSdkVersion="7" />     <application android:icon="@drawable/icon" android:label="@string/app_name">         <activity android:name=".Test"                   android:label="@string/app_name" android:theme="@android:style/Theme.NoTitleBar.Fullscreen"             android:configChanges="orientation|keyboardHidden|keyboard">             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                 <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>     </application>   <uses-permission android:name="android.permission.INTERNET"></uses-permission> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"/> <uses-permission android:name="android.permission.ACCESS_GPS" /> <uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" /> <uses-permission android:name="android.permission.ACCESS_LOCATION" /> </manifest> Expecting rest of things you can understand.