mPlayer.setWebViewClient(new WebViewClient() {
// autoplay when finished loading via javascript injection
public void onPageFinished(WebView view, String url) { mPlayer.loadUrl("javascript:(function() { var videos = document.getElementsByTagName('video'); for(var i=0;i<videos.length;i++){videos[i].play();}})()"); }
});

public class PlayerActivity extends Activity {
protected void onCreate(Bundle savedInstanceState) {
//here
}
}