Edit 2014/10: by popular demand I'm maintaining and moving this to GitHub. Please check cprcrack/VideoEnabledWebView for the last version. Will keep this answer only for reference.
Edit 2014/01: improved example usage to include the nonVideoLayout, videoLayout, and videoLoading views, for those users requesting more example code for better understading.
Edit 2013/12: some bug fixes related to Sony Xperia devices compatibility, but which in fact affected all devices.
Edit 2013/11: after the release of Android 4.4 KitKat (API level 19) with its new Chromium webview, I had to work hard again. Several improvements were made. You should update to this new version. I release this source under WTFPL.
Edit 2013/04: after 1 week of hard work, I finally have achieved everything I needed. I think this two generic classes that I have created can solve all you problems.
VideoEnabledWebChromeClient
can be used alone if you do not require the functionality that VideoEnabledWebView
adds. But VideoEnabledWebView
must always rely on a VideoEnabledWebChromeClient
. Please read all the comments of the both classes carefully.
VideoEnabledWebChromeClient class
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.webkit.WebChromeClient;
import android.widget.FrameLayout;
/**
* This class serves as a WebChromeClient to be set to a WebView, allowing it to play video.
* Video will play differently depending on target API level (in-line, fullscreen, or both).
*
* It has been tested with the following video classes:
* - android.widget.VideoView (typically API level <11)
* - android.webkit.HTML5VideoFullScreen$VideoSurfaceView/VideoTextureView (typically API level 11-18)
* - com.android.org.chromium.content.browser.ContentVideoView$VideoSurfaceView (typically API level 19+)
*
* Important notes:
* - For API level 11+, android:hardwareAccelerated="true" must be set in the application manifest.
* - The invoking activity must call VideoEnabledWebChromeClient's onBackPressed() inside of its own onBackPressed().
* - Tested in Android API levels 8-19. Only tested on http://m.youtube.com.
*
* @author Cristian Perez (http://cpr.name)
*
*/
public class VideoEnabledWebChromeClient extends WebChromeClient implements OnPreparedListener, OnCompletionListener, OnErrorListener
{
public interface ToggledFullscreenCallback
{
public void toggledFullscreen(boolean fullscreen);
}
private View activityNonVideoView;
private ViewGroup activityVideoView;
private View loadingView;
private VideoEnabledWebView webView;
private boolean isVideoFullscreen; // Indicates if the video is being displayed using a custom view (typically full-screen)
private FrameLayout videoViewContainer;
private CustomViewCallback videoViewCallback;
private ToggledFullscreenCallback toggledFullscreenCallback;
/**
* Never use this constructor alone.
* This constructor allows this class to be defined as an inline inner class in which the user can override methods
*/
@SuppressWarnings("unused")
public VideoEnabledWebChromeClient()
{
}
/**
* Builds a video enabled WebChromeClient.
* @param activityNonVideoView A View in the activity's layout that contains every other view that should be hidden when the video goes full-screen.
* @param activityVideoView A ViewGroup in the activity's layout that will display the video. Typically you would like this to fill the whole layout.
*/
@SuppressWarnings("unused")
public VideoEnabledWebChromeClient(View activityNonVideoView, ViewGroup activityVideoView)
{
this.activityNonVideoView = activityNonVideoView;
this.activityVideoView = activityVideoView;
this.loadingView = null;
this.webView = null;
this.isVideoFullscreen = false;
}
/**
* Builds a video enabled WebChromeClient.
* @param activityNonVideoView A View in the activity's layout that contains every other view that should be hidden when the video goes full-screen.
* @param activityVideoView A ViewGroup in the activity's layout that will display the video. Typically you would like this to fill the whole layout.
* @param loadingView A View to be shown while the video is loading (typically only used in API level <11). Must be already inflated and without a parent view.
*/
@SuppressWarnings("unused")
public VideoEnabledWebChromeClient(View activityNonVideoView, ViewGroup activityVideoView, View loadingView)
{
this.activityNonVideoView = activityNonVideoView;
this.activityVideoView = activityVideoView;
this.loadingView = loadingView;
this.webView = null;
this.isVideoFullscreen = false;
}
/**
* Builds a video enabled WebChromeClient.
* @param activityNonVideoView A View in the activity's layout that contains every other view that should be hidden when the video goes full-screen.
* @param activityVideoView A ViewGroup in the activity's layout that will display the video. Typically you would like this to fill the whole layout.
* @param loadingView A View to be shown while the video is loading (typically only used in API level <11). Must be already inflated and without a parent view.
* @param webView The owner VideoEnabledWebView. Passing it will enable the VideoEnabledWebChromeClient to detect the HTML5 video ended event and exit full-screen.
* Note: The web page must only contain one video tag in order for the HTML5 video ended event to work. This could be improved if needed (see Javascript code).
*/
public VideoEnabledWebChromeClient(View activityNonVideoView, ViewGroup activityVideoView, View loadingView, VideoEnabledWebView webView)
{
this.activityNonVideoView = activityNonVideoView;
this.activityVideoView = activityVideoView;
this.loadingView = loadingView;
this.webView = webView;
this.isVideoFullscreen = false;
}
/**
* Indicates if the video is being displayed using a custom view (typically full-screen)
* @return true it the video is being displayed using a custom view (typically full-screen)
*/
public boolean isVideoFullscreen()
{
return isVideoFullscreen;
}
/**
* Set a callback that will be fired when the video starts or finishes displaying using a custom view (typically full-screen)
* @param callback A VideoEnabledWebChromeClient.ToggledFullscreenCallback callback
*/
public void setOnToggledFullscreen(ToggledFullscreenCallback callback)
{
this.toggledFullscreenCallback = callback;
}
@Override
public void onShowCustomView(View view, CustomViewCallback callback)
{
if (view instanceof FrameLayout)
{
// A video wants to be shown
FrameLayout frameLayout = (FrameLayout) view;
View focusedChild = frameLayout.getFocusedChild();
// Save video related variables
this.isVideoFullscreen = true;
this.videoViewContainer = frameLayout;
this.videoViewCallback = callback;
// Hide the non-video view, add the video view, and show it
activityNonVideoView.setVisibility(View.INVISIBLE);
activityVideoView.addView(videoViewContainer, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
activityVideoView.setVisibility(View.VISIBLE);
if (focusedChild instanceof android.widget.VideoView)
{
// android.widget.VideoView (typically API level <11)
android.widget.VideoView videoView = (android.widget.VideoView) focusedChild;
// Handle all the required events
videoView.setOnPreparedListener(this);
videoView.setOnCompletionListener(this);
videoView.setOnErrorListener(this);
}
else
{
// Other classes, including:
// - android.webkit.HTML5VideoFullScreen$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 11-18)
// - android.webkit.HTML5VideoFullScreen$VideoTextureView, which inherits from android.view.TextureView (typically API level 11-18)
// - com.android.org.chromium.content.browser.ContentVideoView$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 19+)
// Handle HTML5 video ended event only if the class is a SurfaceView
// Test case: TextureView of Sony Xperia T API level 16 doesn't work fullscreen when loading the javascript below
if (webView != null && webView.getSettings().getJavaScriptEnabled() && focusedChild instanceof SurfaceView)
{
// Run javascript code that detects the video end and notifies the Javascript interface
String js = "javascript:";
js += "var _ytrp_html5_video_last;";
js += "var _ytrp_html5_video = document.getElementsByTagName('video')[0];";
js += "if (_ytrp_html5_video != undefined && _ytrp_html5_video != _ytrp_html5_video_last) {";
{
js += "_ytrp_html5_video_last = _ytrp_html5_video;";
js += "function _ytrp_html5_video_ended() {";
{
js += "_VideoEnabledWebView.notifyVideoEnd();"; // Must match Javascript interface name and method of VideoEnableWebView
}
js += "}";
js += "_ytrp_html5_video.addEventListener('ended', _ytrp_html5_video_ended);";
}
js += "}";
webView.loadUrl(js);
}
}
// Notify full-screen change
if (toggledFullscreenCallback != null)
{
toggledFullscreenCallback.toggledFullscreen(true);
}
}
}
@Override @SuppressWarnings("deprecation")
public void onShowCustomView(View view, int requestedOrientation, CustomViewCallback callback) // Available in API level 14+, deprecated in API level 18+
{
onShowCustomView(view, callback);
}
@Override
public void onHideCustomView()
{
// This method should be manually called on video end in all cases because it's not always called automatically.
// This method must be manually called on back key press (from this class' onBackPressed() method).
if (isVideoFullscreen)
{
// Hide the video view, remove it, and show the non-video view
activityVideoView.setVisibility(View.INVISIBLE);
activityVideoView.removeView(videoViewContainer);
activityNonVideoView.setVisibility(View.VISIBLE);
// Call back (only in API level <19, because in API level 19+ with chromium webview it crashes)
if (videoViewCallback != null && !videoVi