int getDrawerViewAbsoluteGravity(View drawerView) {
        final int gravity = ((LayoutParams) drawerView.getLayoutParams()).gravity;
        return GravityCompat.getAbsoluteGravity(gravity, ViewCompat.getLayoutDirection(this));
    }
@return the absolute gravity of the child drawerView, resolved according
to the current layout direction
app/src/main/java/com/sunnyweather/android/ui/customerUIs/HomeDrawerLayout.java