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 17 package android.app.stubs; 18 19 import android.app.Activity; 20 import android.app.Fragment; 21 import android.content.Context; 22 import android.os.Bundle; 23 import android.transition.Transition; 24 import android.transition.Transition.TransitionListener; 25 import android.transition.TransitionInflater; 26 import android.view.LayoutInflater; 27 import android.view.View; 28 import android.view.ViewGroup; 29 import android.view.WindowManager; 30 31 /** 32 * A simple activity used for Fragment Transitions 33 */ 34 public class FragmentTestActivity extends Activity { 35 @Override onCreate(Bundle icicle)36 public void onCreate(Bundle icicle) { 37 super.onCreate(icicle); 38 setContentView(R.layout.activity_content); 39 // Work around problems running while on lock screen 40 getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD | 41 WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | 42 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 43 } 44 45 public static class TestFragment extends Fragment { 46 public static final int ENTER = 0; 47 public static final int RETURN = 1; 48 public static final int EXIT = 2; 49 public static final int REENTER = 3; 50 public static final int SHARED_ELEMENT_ENTER = 4; 51 public static final int SHARED_ELEMENT_RETURN = 5; 52 private static final int TRANSITION_COUNT = 6; 53 54 private static final String LAYOUT_ID = "layoutId"; 55 private static final String TRANSITION_KEY = "transition_"; 56 private int mLayoutId = R.layout.fragment_start; 57 private final int[] mTransitionIds = new int[] { 58 android.R.transition.explode, 59 android.R.transition.explode, 60 android.R.transition.fade, 61 android.R.transition.fade, 62 android.R.transition.move, 63 android.R.transition.move, 64 }; 65 private final TransitionCalledListener[] mListeners = 66 new TransitionCalledListener[TRANSITION_COUNT]; 67 private OnTransitionListener mOnTransitionListener; 68 TestFragment()69 public TestFragment() { 70 for (int i = 0; i < TRANSITION_COUNT; i++) { 71 mListeners[i] = new TransitionCalledListener(); 72 } 73 } 74 TestFragment(int layoutId)75 public TestFragment(int layoutId) { 76 this(); 77 mLayoutId = layoutId; 78 } 79 clearTransitions()80 public void clearTransitions() { 81 for (int i = 0; i < TRANSITION_COUNT; i++) { 82 mTransitionIds[i] = 0; 83 } 84 } 85 clearNotifications()86 public void clearNotifications() { 87 for (int i = 0; i < TRANSITION_COUNT; i++) { 88 mListeners[i].transitionStarted = false; 89 mListeners[i].transitionEnded = false; 90 } 91 } 92 93 @Override onCreate(Bundle savedInstanceState)94 public void onCreate(Bundle savedInstanceState) { 95 super.onCreate(savedInstanceState); 96 if (savedInstanceState != null) { 97 mLayoutId = savedInstanceState.getInt(LAYOUT_ID, mLayoutId); 98 for (int i = 0; i < TRANSITION_COUNT; i++) { 99 String key = TRANSITION_KEY + i; 100 mTransitionIds[i] = savedInstanceState.getInt(key, mTransitionIds[i]); 101 } 102 } 103 } 104 105 @Override onSaveInstanceState(Bundle outState)106 public void onSaveInstanceState(Bundle outState) { 107 super.onSaveInstanceState(outState); 108 outState.putInt(LAYOUT_ID, mLayoutId); 109 for (int i = 0; i < TRANSITION_COUNT; i++) { 110 String key = TRANSITION_KEY + i; 111 outState.putInt(key, mTransitionIds[i]); 112 } 113 } 114 115 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)116 public View onCreateView(LayoutInflater inflater, ViewGroup container, 117 Bundle savedInstanceState) { 118 return inflater.inflate(mLayoutId, container, false); 119 } 120 121 @Override onAttach(Context context)122 public void onAttach(Context context) { 123 super.onAttach(context); 124 setEnterTransition(loadTransition(ENTER)); 125 setReenterTransition(loadTransition(REENTER)); 126 setExitTransition(loadTransition(EXIT)); 127 setReturnTransition(loadTransition(RETURN)); 128 setSharedElementEnterTransition(loadTransition(SHARED_ELEMENT_ENTER)); 129 setSharedElementReturnTransition(loadTransition(SHARED_ELEMENT_RETURN)); 130 } 131 setOnTransitionListener(OnTransitionListener listener)132 public void setOnTransitionListener(OnTransitionListener listener) { 133 mOnTransitionListener = listener; 134 } 135 wasStartCalled(int transitionKey)136 public boolean wasStartCalled(int transitionKey) { 137 return mListeners[transitionKey].transitionStarted; 138 } 139 wasEndCalled(int transitionKey)140 public boolean wasEndCalled(int transitionKey) { 141 return mListeners[transitionKey].transitionEnded; 142 } 143 loadTransition(int key)144 private Transition loadTransition(int key) { 145 final int id = mTransitionIds[key]; 146 if (id == 0) { 147 return null; 148 } 149 Transition transition = TransitionInflater.from(getActivity()).inflateTransition(id); 150 transition.addListener(mListeners[key]); 151 return transition; 152 } 153 notifyTransition()154 private void notifyTransition() { 155 if (mOnTransitionListener != null) { 156 mOnTransitionListener.onTransition(this); 157 } 158 } 159 160 private class TransitionCalledListener implements TransitionListener { 161 public boolean transitionStarted; 162 public boolean transitionEnded; 163 TransitionCalledListener()164 public TransitionCalledListener() { 165 } 166 167 @Override onTransitionStart(Transition transition)168 public void onTransitionStart(Transition transition) { 169 transitionStarted = true; 170 notifyTransition(); 171 } 172 173 @Override onTransitionEnd(Transition transition)174 public void onTransitionEnd(Transition transition) { 175 transitionEnded = true; 176 notifyTransition(); 177 } 178 179 @Override onTransitionCancel(Transition transition)180 public void onTransitionCancel(Transition transition) { 181 } 182 183 @Override onTransitionPause(Transition transition)184 public void onTransitionPause(Transition transition) { 185 } 186 187 @Override onTransitionResume(Transition transition)188 public void onTransitionResume(Transition transition) { 189 } 190 } 191 } 192 193 public interface OnTransitionListener { onTransition(TestFragment fragment)194 void onTransition(TestFragment fragment); 195 } 196 197 } 198