Android: How to detect a change in MediaStore when connected over MTP

Question

I have big problems with MediaStore. I need to handle events when MediaStore is changed over MTP. I already have a receiver for android.intent.action.MEDIA_SCANNER_FIN

Answer 1

Create a content observer class

class MyObserver extends ContentObserver {
    public MyObserver(Handler handler) {

        super(handler);
    }

    @Override
    public void onChange(boolean selfChange) {
        this.onChange(selfChange, null);
    }

    @Override
    public void onChange(boolean selfChange, Uri uri) {
     doYourWorkHere();
    }
}

Register the observer in your activity

Handler handler;
    MyObserver observer;
handler = new Handler();
observer = new MyObserver(handler);
        this.getContentResolver().
                registerContentObserver(
                        MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
                        true,
                        observer);

Don't forget to unregister the observer in onDestroy() function

 this.getContentResolver().unregisterContentObserver(observer);