1/* 2 * Copyright (C) 2014 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.v4.app; 18 19import android.app.Activity; 20import android.app.SharedElementCallback; 21import android.content.Context; 22import android.graphics.Matrix; 23import android.graphics.RectF; 24import android.os.Parcelable; 25import android.view.View; 26 27import java.lang.Override; 28import java.lang.String; 29import java.util.List; 30import java.util.Map; 31 32class ActivityCompat21 { 33 34 public static void finishAfterTransition(Activity activity) { 35 activity.finishAfterTransition(); 36 } 37 38 public static void setEnterSharedElementCallback(Activity activity, 39 SharedElementCallback21 callback) { 40 activity.setEnterSharedElementCallback(createCallback(callback)); 41 } 42 43 public static void setExitSharedElementCallback(Activity activity, 44 SharedElementCallback21 callback) { 45 activity.setExitSharedElementCallback(createCallback(callback)); 46 } 47 48 public static void postponeEnterTransition(Activity activity) { 49 activity.postponeEnterTransition(); 50 } 51 52 public static void startPostponedEnterTransition(Activity activity) { 53 activity.startPostponedEnterTransition(); 54 } 55 56 public abstract static class SharedElementCallback21 { 57 public abstract void onSharedElementStart(List<String> sharedElementNames, 58 List<View> sharedElements, List<View> sharedElementSnapshots); 59 60 public abstract void onSharedElementEnd(List<String> sharedElementNames, 61 List<View> sharedElements, List<View> sharedElementSnapshots); 62 63 public abstract void onRejectSharedElements(List<View> rejectedSharedElements); 64 65 public abstract void onMapSharedElements(List<String> names, 66 Map<String, View> sharedElements); 67 public abstract Parcelable onCaptureSharedElementSnapshot(View sharedElement, 68 Matrix viewToGlobalMatrix, RectF screenBounds); 69 public abstract View onCreateSnapshotView(Context context, Parcelable snapshot); 70 } 71 72 private static SharedElementCallback createCallback(SharedElementCallback21 callback) { 73 SharedElementCallback newListener = null; 74 if (callback != null) { 75 newListener = new SharedElementCallbackImpl(callback); 76 } 77 return newListener; 78 } 79 80 private static class SharedElementCallbackImpl extends SharedElementCallback { 81 private SharedElementCallback21 mCallback; 82 83 public SharedElementCallbackImpl(SharedElementCallback21 callback) { 84 mCallback = callback; 85 } 86 87 @Override 88 public void onSharedElementStart(List<String> sharedElementNames, 89 List<View> sharedElements, List<View> sharedElementSnapshots) { 90 mCallback.onSharedElementStart(sharedElementNames, sharedElements, 91 sharedElementSnapshots); 92 } 93 94 @Override 95 public void onSharedElementEnd(List<String> sharedElementNames, List<View> sharedElements, 96 List<View> sharedElementSnapshots) { 97 mCallback.onSharedElementEnd(sharedElementNames, sharedElements, 98 sharedElementSnapshots); 99 } 100 101 @Override 102 public void onRejectSharedElements(List<View> rejectedSharedElements) { 103 mCallback.onRejectSharedElements(rejectedSharedElements); 104 } 105 106 @Override 107 public void onMapSharedElements(List<String> names, Map<String, View> sharedElements) { 108 mCallback.onMapSharedElements(names, sharedElements); 109 } 110 111 @Override 112 public Parcelable onCaptureSharedElementSnapshot(View sharedElement, 113 Matrix viewToGlobalMatrix, 114 RectF screenBounds) { 115 return mCallback.onCaptureSharedElementSnapshot(sharedElement, viewToGlobalMatrix, 116 screenBounds); 117 } 118 119 @Override 120 public View onCreateSnapshotView(Context context, Parcelable snapshot) { 121 return mCallback.onCreateSnapshotView(context, snapshot); 122 } 123 } 124} 125