Android alpha animation fadein fadeout with delays

Question

I want to do a very simple alpha animation but I cannot find a valid way.

The idea is to perform this animation over a view:

1. alpha from 0 to 1 of 1 second
2. hold alpha at 1 for 5 seconds
3. alpha from 1 to 0 of 1 second
4. hold alpha at 0 for 5 seconds.
5. start again on 1.

I've tried to implement that with an AnimationSet as:

AnimationSet animationSet = new AnimationSet(true);

Animation animation1 = new AnimationUtils.loadAnimation(this, android.R.anim.fade_in);
animation1.setDuration(1000);

Animation animation2 = new AnimationUtils.loadAnimation(this, android.R.anim.fade_out);
animation2.setDuration(1000);
animation2.setStartOffset(5000);

Animation animation3 = new AlphaAnimation(0.0f, 0.0f);
animation3.setDuration(4000)
animation3.setStartOffset(6000);

animationSet.add(animatino1);
animationSet.add(animation2);
animationSet.add(animation3);

etc..

but it seams that the third animation do a mess with all the alpha animations, I supose that this cause an internal incoherence in the way that Android manage this type of animation.

Any idea?

Thank you.