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android – HTML 5 video crash when going fullscreen

Posted by: admin June 15, 2020 Leave a comment

Questions:

I’m currently working on an application with screen orientation portrait, and i have html 5 video that need fullscreen support. I added to the webview a WebChromeClient, overrided few methods. Everything is working fine when i stick to the portrait orientation, but when i try to switch orientation to landscape when going fullscreen, i got a crash. Any clue ?

Overrided methods:

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());
        }

Log says:

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)

EDIT: I have this line in my manifest:

android:configChanges="keyboardHidden|orientation|locale|screenLayout"
How to&Answers:

When you switch the orientation the application resets it self starting with oncreate event. It doesn t just simple change the height and width and related stuff. That why you are getting a null exception one of the control you have created is not exist this time. Probably HTML5View.

What you should do is keep track of the video position and in case of switch reload all the controls according starting with the last position.

Answer:

You can try handling the orientation changes from the Manifest by adding this to your Activity:

android:configChanges="orientation|screenLayout"

I used to have the same problem but this worked for me.