Fix the VideoView memory leak

Activity.java

@Override
    protected void attachBaseContext(Context newBase) {
        super.attachBaseContext(new ContextWrapper(newBase){
            @Override
            public Object getSystemService(String name) {
                if(Context.AUDIO_SERVICE.equals(name)){
                    return getApplicationContext().getSystemService(name);
                }
                return super.getSystemService(name);
            }
        });
    }