Java tutorial
//package com.java2s; /** * Copyright 2014 Zhenguo Jin (jinzhenguo1990@gmail.com) * <p/> * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.view.animation.Animation.AnimationListener; import android.view.animation.ScaleAnimation; public class Main { public static final long DEFAULT_ANIMATION_DURATION = 400; public static ScaleAnimation getAmplificationAnimation(long durationMillis, AnimationListener animationListener) { ScaleAnimation scaleAnimation = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f, ScaleAnimation.RELATIVE_TO_SELF, ScaleAnimation.RELATIVE_TO_SELF); scaleAnimation.setDuration(durationMillis); scaleAnimation.setAnimationListener(animationListener); return scaleAnimation; } public static ScaleAnimation getAmplificationAnimation(long durationMillis) { return getLessenScaleAnimation(DEFAULT_ANIMATION_DURATION); } public static ScaleAnimation getAmplificationAnimation(AnimationListener animationListener) { return getLessenScaleAnimation(DEFAULT_ANIMATION_DURATION, null); } public static ScaleAnimation getLessenScaleAnimation(long durationMillis, AnimationListener animationListener) { ScaleAnimation scaleAnimation = new ScaleAnimation(1.0f, 0.0f, 1.0f, 0.0f, ScaleAnimation.RELATIVE_TO_SELF, ScaleAnimation.RELATIVE_TO_SELF); scaleAnimation.setDuration(durationMillis); scaleAnimation.setAnimationListener(animationListener); return scaleAnimation; } public static ScaleAnimation getLessenScaleAnimation(long durationMillis) { return getLessenScaleAnimation(DEFAULT_ANIMATION_DURATION); } public static ScaleAnimation getLessenScaleAnimation(AnimationListener animationListener) { return getLessenScaleAnimation(DEFAULT_ANIMATION_DURATION, null); } }