library/src/main/java/de/mrapp/android/view/FloatingActionButton.java
private void adaptShadow() {
        if (getSize() == Size.NORMAL) {
            setBackgroundResource(R.drawable.floating_action_button_shadow_normal);
        } else if (getSize() == Size.SMALL) {
            setBackgroundResource(R.drawable.floating_action_button_shadow_small);
        } else {
            setBackgroundResource(R.drawable.floating_action_button_shadow_large);
        }
    }
private void adaptShadow() {
        if (getSize() == Size.NORMAL) {
            setBackgroundResource(R.drawable.floating_action_button_shadow_normal);
        } else if (getSize() == Size.SMALL) {
            setBackgroundResource(R.drawable.floating_action_button_shadow_small);
        } else {
            setBackgroundResource(R.drawable.floating_action_button_shadow_large);
        }
    }
Adapts the shadow of the floating action button, depending on its size.