how to animate one item of layer-list

Question

I have a layer list object, it contain two images, one is background, and the other is a rotation disk image which will be raotated at the top of the background image. i.e. I u

Answer 1

First create 2(or more) layer-list resources ie *layer_frame1.xml* and *layer_frame2.xml* , where you set your frames. In your case let's say changing the android:top of the disk item.

Then create an animation-list resource where you set the timing and order of the frames :

Save it in a file ie *drawable/player_animation.xml* and set it as background on a View

Finally in your code just say when you want the animation start.

 ((AnimationDrawable)findViewById(R.id.animation_test).getBackground()).start();

Watch out do not start the animation inside onCreate() method.