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.animation.AnimatorListenerAdapter; 21import android.graphics.Matrix; 22import android.support.annotation.RequiresApi; 23import android.widget.ImageView; 24 25@RequiresApi(14) 26class ImageViewUtilsApi14 implements ImageViewUtilsImpl { 27 28 @Override 29 public void startAnimateTransform(ImageView view) { 30 final ImageView.ScaleType scaleType = view.getScaleType(); 31 view.setTag(R.id.save_scale_type, scaleType); 32 if (scaleType == ImageView.ScaleType.MATRIX) { 33 view.setTag(R.id.save_image_matrix, view.getImageMatrix()); 34 } else { 35 view.setScaleType(ImageView.ScaleType.MATRIX); 36 } 37 view.setImageMatrix(MatrixUtils.IDENTITY_MATRIX); 38 } 39 40 @Override 41 public void animateTransform(ImageView view, Matrix matrix) { 42 view.setImageMatrix(matrix); 43 } 44 45 @Override 46 public void reserveEndAnimateTransform(final ImageView view, Animator animator) { 47 animator.addListener(new AnimatorListenerAdapter() { 48 @Override 49 public void onAnimationEnd(Animator animation) { 50 final ImageView.ScaleType scaleType = (ImageView.ScaleType) 51 view.getTag(R.id.save_scale_type); 52 view.setScaleType(scaleType); 53 view.setTag(R.id.save_scale_type, null); 54 if (scaleType == ImageView.ScaleType.MATRIX) { 55 view.setImageMatrix((Matrix) view.getTag(R.id.save_image_matrix)); 56 view.setTag(R.id.save_image_matrix, null); 57 } 58 animation.removeListener(this); 59 } 60 }); 61 } 62 63} 64