我目前正在开发一个带屏幕方向肖像的应用程序,我有html 5视频需要全屏支持。我在webview中添加了一个WebChromeClient,它覆盖了一些方法。当我坚持纵向方向时,一切都工作得很好,但当我试图在全屏时将方向切换到风景时,我遇到了崩溃。任何线索?
覆盖方法:
public void onShowCustomView(View view, CustomViewCallback callback) {
super.onShowCustomView(view, callback);
if (mCustomViewContainer != null) {
callback.onCustomViewHidden();
return;
}
if(interfazWeb==null)
interfazWeb = (FragTabActivity) getActivity();
if (view instanceof FrameLayout) {
mCustomViewContainer = (FrameLayout) view;
mCustomViewCallback = callback;
interfazWeb.getCustomContentView().setVisibility(View.INVISIBLE);
interfazWeb.addContentView(mCustomViewContainer, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT, Gravity.CENTER));
interfazWeb.setBackDelegate(new BackDelegate(){
public boolean shouldOverrideBackButton() {
if(mCustomViewCallback!=null){//first calling onHideCustomView()
onHideCustomView();
return true;
}
return false;
}
});
mCustomViewContainer.bringToFront();
//interfazWeb.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
}
@Override
public void onHideCustomView() {
// TODO Auto-generated method stub
if(interfazWeb==null)
interfazWeb = (FragTabActivity) getActivity();
if(mCustomViewContainer!=null){
ViewGroup parent = (ViewGroup) interfazWeb.getCustomContentView().getParent();
if(parent!=null){
parent.removeView(mCustomViewContainer);
interfazWeb.getCustomContentView().setVisibility(View.VISIBLE);
}
}
if(mCustomViewCallback!=null){
mCustomViewCallback.onCustomViewHidden();
mCustomViewCallback = null;
}
//interfazWeb.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
@Override
public Bitmap getDefaultVideoPoster() {
// TODO Auto-generated method stub
return Bitmap.createBitmap(1, 1, Config.ARGB_8888);
}
@Override
public View getVideoLoadingProgressView() {
// TODO Auto-generated method stub
return new ProgressBar((Context) getActivity());
}
日志说:
10-31 11:09:36.336: E/AndroidRuntime(8098): java.lang.NullPointerException
10-31 11:09:36.336: E/AndroidRuntime(8098): at android.webkit.HTML5VideoView.isPlaying(HTML5VideoView.java:122)
10-31 11:09:36.336: E/AndroidRuntime(8098): at android.webkit.HTML5VideoViewProxy$VideoPlayer.isPlaying(HTML5VideoViewProxy.java:253)
10-31 11:09:36.336: E/AndroidRuntime(8098): at android.webkit.HTML5VideoViewProxy.handleMessage(HTML5VideoViewProxy.java:402)
10-31 11:09:36.336: E/AndroidRuntime(8098): at android.os.Handler.dispatchMessage(Handler.java:99)
10-31 11:09:36.336: E/AndroidRuntime(8098): at android.os.Looper.loop(Looper.java:137)
10-31 11:09:36.336: E/AndroidRuntime(8098): at android.app.ActivityThread.main(ActivityThread.java:4758)
10-31 11:09:36.336: E/AndroidRuntime(8098): at java.lang.reflect.Method.invokeNative(Native Method)
10-31 11:09:36.336: E/AndroidRuntime(8098): at java.lang.reflect.Method.invoke(Method.java:511)
10-31 11:09:36.336: E/AndroidRuntime(8098): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
10-31 11:09:36.336: E/AndroidRuntime(8098): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-31 11:09:36.336: E/AndroidRuntime(8098): at dalvik.system.NativeStart.main(Native Method)
编辑:我的清单中有这一行:
android:configChanges="keyboardHidden|orientation|locale|screenLayout"
答案 0 :(得分:0)
当您切换方向时,应用程序将自行重置为oncreate事件。它不仅仅是简单地改变高度和宽度以及相关的东西。这就是为什么你得到一个null异常的原因,这次你创建的控件之一就不存在了。可能是HTML5View。
您应该做的是跟踪视频位置,如果开关重新加载所有控件,请从最后一个位置开始。
答案 1 :(得分:0)
您可以尝试通过将此添加到您的活动来处理Manifest中的方向更改:
android:configChanges="orientation|screenLayout"
我曾经有同样的问题,但这对我有用。