1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.messaging.ui.animation; 17 18 import android.animation.RectEvaluator; 19 import android.animation.TypeEvaluator; 20 import android.graphics.Rect; 21 22 import com.android.messaging.util.OsUtil; 23 24 /** 25 * This evaluator can be used to perform type interpolation between <code>Rect</code> values. 26 * It's backward compatible to Api Level 11. 27 */ 28 public class RectEvaluatorCompat implements TypeEvaluator<Rect> { 29 public static TypeEvaluator<Rect> create() { 30 if (OsUtil.isAtLeastJB_MR2()) { 31 return new RectEvaluator(); 32 } else { 33 return new RectEvaluatorCompat(); 34 } 35 } 36 37 @Override 38 public Rect evaluate(float fraction, Rect startValue, Rect endValue) { 39 int left = startValue.left + (int) ((endValue.left - startValue.left) * fraction); 40 int top = startValue.top + (int) ((endValue.top - startValue.top) * fraction); 41 int right = startValue.right + (int) ((endValue.right - startValue.right) * fraction); 42 int bottom = startValue.bottom + (int) ((endValue.bottom - startValue.bottom) * fraction); 43 return new Rect(left, top, right, bottom); 44 } 45 } 46
