Java tutorial
//package com.java2s; //License from project: Open Source License import android.view.View; import android.view.animation.AnimationSet; import android.view.animation.LinearInterpolator; import android.view.animation.ScaleAnimation; public class Main { public static void popup(View view) { AnimationSet animation = new AnimationSet(true); float pivotX = view.getWidth() / 2; float pivotY = view.getHeight() / 2; ScaleAnimation anim = new ScaleAnimation(0f, 1.1f, 0f, 1.1f, pivotX, pivotY); anim.setInterpolator(new LinearInterpolator()); anim.setDuration(300); animation.addAnimation(anim); anim = new ScaleAnimation(1.1f, 1f, 1.1f, 1f, pivotX, pivotY); anim.setInterpolator(new LinearInterpolator()); anim.setDuration(100); anim.setStartOffset(300); animation.addAnimation(anim); view.startAnimation(animation); } }