AnimationDrawable doesn't start after calling start()

Frame animations (sometimes declared in xml as <animation>) produces an AnimationDrawable. However, in some situations, such as using it as one of the ListView items, the animation doesn't start. Even if you call start().

The solution is simple. Just call stop() and then start().

In the source code of AnimationDrawable, the method start() can sometimes do nothing.

public void start() {
        if (!isRunning()) {
            run();
        }
    }

I have encountered this twice. I hope this helps you.