Java tutorial
//package com.java2s; /* * Copyright (c) 2015 [1076559197@qq.com | tchen0707@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.ValueAnimator; import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.os.Build; import static java.lang.Math.min; public class Main { @TargetApi(Build.VERSION_CODES.HONEYCOMB) @SuppressLint("NewApi") static float getAnimatedFraction(ValueAnimator animator) { float fraction = animator.getDuration() > 0 ? ((float) animator.getCurrentPlayTime()) / animator.getDuration() : 0f; fraction = min(fraction, 1f); fraction = animator.getInterpolator().getInterpolation(fraction); return fraction; } }