Java tutorial
//package com.java2s; /* * Copyright (C) 2016 venshine.cn@gmail.com * * 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 * * http://www.apache.org/licenses/LICENSE-2.0 * * 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.animation.Animator; import android.animation.ObjectAnimator; import android.view.View; public class Main { /** * scale y * * @param v * @param fromY * @param toY * @param duration */ public static void scaleY(View v, float fromY, float toY, int duration) { scaleY(v, fromY, toY, duration, null); } /** * scale y * * @param v * @param fromY * @param toY * @param duration * @param animatorListener */ public static void scaleY(View v, float fromY, float toY, int duration, Animator.AnimatorListener animatorListener) { ObjectAnimator animator = ObjectAnimator.ofFloat(v, View.SCALE_Y, fromY, toY); animator.setDuration(duration); if (animatorListener != null) { animator.addListener(animatorListener); } animator.start(); } }