Java tutorial
//package com.java2s; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; public class Main { public static AlphaAnimation fadeBackgroundAnimation() { AlphaAnimation alpha = new AlphaAnimation(0.5f, 0.2f); alpha.setRepeatCount(Animation.INFINITE); alpha.setRepeatMode(Animation.REVERSE); alpha.setDuration(1200); alpha.setFillAfter(true); return alpha; } }