How to animate FloatingActionButton of new Design Support Library

Question

I am using a TabLayout with 5 different fragments. On 3 of these fragments a android.support.design.widget.FloatingActionButton should appear. Right now I simpl

Answer 1

The easiest way is to extend the FloatingActionButton class and override setVisibility. Like this:

public void setVisibility(final int visibility) {
    if (getVisibility() != View.VISIBLE && visibility == View.VISIBLE && inAnim != null) {
        animator = // create your animator here
        super.setVisibility(visibility);
    } else if (getVisibility() == View.VISIBLE && visibility != View.VISIBLE) {
        AnimatorListenerAdapter listener = new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animator) {
                Button.super.setVisibility(visibility);
            }
        });
        animator = // create your animator here
        animator.addListener(listener);
    }
}

The code above is taken from the Button class from my library. You can find sample implementations in sources.