Java tutorial
//package com.java2s; //License from project: LGPL import android.animation.ObjectAnimator; import android.view.View; public class Main { public static void animShow(View v) { animShow(v, 300, 0, 1); } public static void animShow(View v, int duration, float from, float to) { if (v.getVisibility() == View.GONE) { v.setVisibility(View.VISIBLE); } v.clearAnimation(); ObjectAnimator.ofFloat(v, "alpha", from, to).setDuration(duration).start(); } }