我得到一个NPE试图播放嵌入式视频的WebView在全屏模式下的时候。这是工作的罚款与3.0蜂巢,但不与ICS 4.0+。任何想法,这可怎么解决?
I am getting a NPE when trying to play embeded video in webview in FULLSCREEN. It is working fine with 3.0 honeycomb but not with ICS 4.0+. Any idea how this can be resolved?
java.lang.NullPointerException
at android.webkit.PluginFullScreenHolder.show(PluginFullScreenHolder.java:85)
at android.webkit.WebView$PrivateHandler.handleMessage(WebView.java:8849)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
任何建议将是真正的AP preciated。谢谢
Any suggestion will be really appreciated. Thanks
现在的问题是在Android操作系统中的错误。你需要周围的工作来解决这个问题。 我正面临着同样的问题。以下变通为我工作希望这将帮助一些人: 创建FullscreenableChromeClient和 加入这一行:
The problem is a bug in android OS. You need a work around to resolve this problem. I was facing the same problem. The following work around worked for me.Hope this will help some people: Create the FullscreenableChromeClient and add this line:
WebView.setWebChromeClient( new FullscreenableChromeClient(this));
public class FullscreenableChromeClient extends WebChromeClient {
protected Activity mActivity = null;
private View mCustomView;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
private int mOriginalOrientation;
private FrameLayout mContentView;
private FrameLayout mFullscreenContainer;
private static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
public FullscreenableChromeClient(Activity activity) {
this.mActivity = activity;
}
@Override
public void onShowCustomView(View view, int requestedOrientation, WebChromeClient.CustomViewCallback callback) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
mOriginalOrientation = mActivity.getRequestedOrientation();
FrameLayout decor = (FrameLayout) mActivity.getWindow().getDecorView();
mFullscreenContainer = new FullscreenHolder(mActivity);
mFullscreenContainer.addView(view, COVER_SCREEN_PARAMS);
decor.addView(mFullscreenContainer, COVER_SCREEN_PARAMS);
mCustomView = view;
setFullscreen(true);
mCustomViewCallback = callback;
mActivity.setRequestedOrientation(requestedOrientation);
}
super.onShowCustomView(view, requestedOrientation, callback);
}
@Override
public void onHideCustomView() {
if (mCustomView == null) {
return;
}
setFullscreen(false);
FrameLayout decor = (FrameLayout) mActivity.getWindow().getDecorView();
decor.removeView(mFullscreenContainer);
mFullscreenContainer = null;
mCustomView = null;
mCustomViewCallback.onCustomViewHidden();
mActivity.setRequestedOrientation(mOriginalOrientation);
}
private void setFullscreen(boolean enabled) {
Window win = mActivity.getWindow();
WindowManager.LayoutParams winParams = win.getAttributes();
final int bits = WindowManager.LayoutParams.FLAG_FULLSCREEN;
if (enabled) {
winParams.flags |= bits;
} else {
winParams.flags &= ~bits;
if (mCustomView != null) {
mCustomView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
} else {
mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
}
}
win.setAttributes(winParams);
}
private static class FullscreenHolder extends FrameLayout {
public FullscreenHolder(Context ctx) {
super(ctx);
setBackgroundColor(ctx.getResources().getColor(android.R.color.black));
}
@Override
public boolean onTouchEvent(MotionEvent evt) {
return true;
}
}
}