Question

I have some problems with animated buttons in android. This is my code:

     private void RunAnimations() {
            Animation a = AnimationUtils.loadAnimation(this, R.anim.alpha);
            a.reset();
            Button tv = (Button) findViewById(R.id.button1);
            tv.clearAnimation();
            tv.startAnimation(a);}

            @Override
        public boolean onTouchEvent(MotionEvent event){
            if(event.getAction()== MotionEvent.ACTION_DOWN){
                RunAnimations();
            }
            return false;
            }

The problem is the animation will run if the screen OnTouch. I want the animation to run only one time. What should I add?

Answer 1

You could add a boolean to your class animationRun = false, then

 public boolean onTouchEvent(MotionEvent event){
        if(!animationRun && event.getAction()== MotionEvent.ACTION_DOWN){
            RunAnimations();
            animationRun = true;
        }
        return false;
        }

I’d prefer to just remove the event handler after you play the animation, but I don’t really know the Android API so can’t help you there.