1/* 2 * Copyright (C) 2017 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 17package android.support.transition; 18 19import android.animation.Animator; 20import android.graphics.Matrix; 21import android.os.Build; 22import android.widget.ImageView; 23 24class ImageViewUtils { 25 26 private static final ImageViewUtilsImpl IMPL; 27 28 static { 29 if (Build.VERSION.SDK_INT >= 21) { 30 IMPL = new ImageViewUtilsApi21(); 31 } else { 32 IMPL = new ImageViewUtilsApi14(); 33 } 34 } 35 36 /** 37 * Starts animating the transformation of the image view. This has to be called before calling 38 * {@link #animateTransform(ImageView, Matrix)}. 39 */ 40 static void startAnimateTransform(ImageView view) { 41 IMPL.startAnimateTransform(view); 42 } 43 44 /** 45 * Sets the matrix to animate the content of the image view. 46 */ 47 static void animateTransform(ImageView view, Matrix matrix) { 48 IMPL.animateTransform(view, matrix); 49 } 50 51 /** 52 * Reserves that the caller will stop calling {@link #animateTransform(ImageView, Matrix)} when 53 * the specified animator ends. 54 */ 55 static void reserveEndAnimateTransform(ImageView view, Animator animator) { 56 IMPL.reserveEndAnimateTransform(view, animator); 57 } 58 59} 60