1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14package android.support.v17.leanback.transition; 15 16import android.R; 17import android.content.Context; 18import android.graphics.Rect; 19import android.support.annotation.RequiresApi; 20import android.transition.ChangeTransform; 21import android.transition.Transition; 22import android.transition.TransitionManager; 23import android.view.View; 24import android.view.ViewGroup; 25import android.view.Window; 26import android.view.animation.AnimationUtils; 27 28@RequiresApi(21) 29final class TransitionHelperApi21 { 30 31 TransitionHelperApi21() { 32 } 33 34 public static void setEnterTransition(android.app.Fragment fragment, Object transition) { 35 fragment.setEnterTransition((Transition)transition); 36 } 37 38 public static void setExitTransition(android.app.Fragment fragment, Object transition) { 39 fragment.setExitTransition((Transition)transition); 40 } 41 42 public static void setSharedElementEnterTransition(android.app.Fragment fragment, 43 Object transition) { 44 fragment.setSharedElementEnterTransition((Transition)transition); 45 } 46 47 public static void addSharedElement(android.app.FragmentTransaction ft, 48 View view, String transitionName) { 49 ft.addSharedElement(view, transitionName); 50 } 51 52 public static Object getSharedElementEnterTransition(Window window) { 53 return window.getSharedElementEnterTransition(); 54 } 55 56 public static void setSharedElementEnterTransition(Window window, Object transition) { 57 window.setSharedElementEnterTransition((Transition) transition); 58 } 59 60 public static Object getSharedElementReturnTransition(Window window) { 61 return window.getSharedElementReturnTransition(); 62 } 63 64 public static void setSharedElementReturnTransition(Window window, Object transition) { 65 window.setSharedElementReturnTransition((Transition) transition); 66 } 67 68 public static Object getSharedElementExitTransition(Window window) { 69 return window.getSharedElementExitTransition(); 70 } 71 72 public static Object getSharedElementReenterTransition(Window window) { 73 return window.getSharedElementReenterTransition(); 74 } 75 76 public static Object getEnterTransition(Window window) { 77 return window.getEnterTransition(); 78 } 79 80 public static void setEnterTransition(Window window, Object transition) { 81 window.setEnterTransition((Transition) transition); 82 } 83 84 public static Object getReturnTransition(Window window) { 85 return window.getReturnTransition(); 86 } 87 88 public static void setReturnTransition(Window window, Object transition) { 89 window.setReturnTransition((Transition) transition); 90 } 91 92 public static Object getExitTransition(Window window) { 93 return window.getExitTransition(); 94 } 95 96 public static Object getReenterTransition(Window window) { 97 return window.getReenterTransition(); 98 } 99 100 public static Object createScale() { 101 return new ChangeTransform(); 102 } 103 104 public static Object createDefaultInterpolator(Context context) { 105 return AnimationUtils.loadInterpolator(context, R.interpolator.fast_out_linear_in); 106 } 107 108 public static Object createChangeTransform() { 109 return new ChangeTransform(); 110 } 111 112 public static Object createFadeAndShortSlide(int edge) { 113 return new FadeAndShortSlide(edge); 114 } 115 116 public static Object createFadeAndShortSlide(int edge, float distance) { 117 FadeAndShortSlide slide = new FadeAndShortSlide(edge); 118 slide.setDistance(distance); 119 return slide; 120 } 121 122 public static void beginDelayedTransition(ViewGroup sceneRoot, Object transitionObject) { 123 Transition transition = (Transition) transitionObject; 124 TransitionManager.beginDelayedTransition(sceneRoot, transition); 125 } 126 127 public static void setTransitionGroup(ViewGroup viewGroup, boolean transitionGroup) { 128 viewGroup.setTransitionGroup(transitionGroup); 129 } 130 131 public static void setEpicenterCallback(Object transitionObject, 132 final TransitionEpicenterCallback callback) { 133 Transition transition = (Transition) transitionObject; 134 if (callback == null) { 135 transition.setEpicenterCallback(null); 136 } else { 137 transition.setEpicenterCallback(new Transition.EpicenterCallback() { 138 @Override 139 public Rect onGetEpicenter(Transition transition) { 140 return callback.onGetEpicenter(transition); 141 } 142 }); 143 } 144 } 145} 146