@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        getMenuInflater().inflate(R.menu.activity_crossfade, menu);
        return true;
    }
The system "short" animation time duration, in milliseconds. This duration is ideal for
subtle animations or animations that occur very frequently.
app/src/main/java/home/smart/fly/animations/ui/activity/demos/CrossfadeActivity.java