1 /*
2  * Copyright (C) 2013 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 package com.android.transitiontests;
17 
18 import android.app.Activity;
19 import android.os.Bundle;
20 import android.transition.ChangeBounds;
21 import android.view.View;
22 import android.view.ViewGroup;
23 import android.transition.Fade;
24 import android.transition.Recolor;
25 import android.transition.Scene;
26 import android.transition.TransitionSet;
27 import android.transition.TransitionManager;
28 
29 
30 public class Demo4 extends Activity {
31     ViewGroup mSceneRoot;
32     static Scene mCurrentScene;
33     Scene mSearchScreen, mResultsScreen;
34     TransitionManager mTransitionManager = null;
35 
36     @Override
onCreate(Bundle savedInstanceState)37     public void onCreate(Bundle savedInstanceState) {
38         super.onCreate(savedInstanceState);
39         setContentView(R.layout.search_screen);
40 
41         View container = findViewById(R.id.container);
42         mSceneRoot = (ViewGroup) container.getParent();
43 
44         mSearchScreen = Scene.getSceneForLayout(mSceneRoot, R.layout.search_screen, this);
45         mResultsScreen = Scene.getSceneForLayout(mSceneRoot, R.layout.results_screen, this);
46 
47         TransitionSet transitionToResults = new TransitionSet();
48         Fade fade = new Fade();
49         fade.addTarget(R.id.resultsText).addTarget(R.id.resultsList);
50         fade.setStartDelay(300);
51         fade.setDuration(1000);
52         transitionToResults.addTransition(fade).
53                 addTransition(new ChangeBounds().addTarget(R.id.searchContainer)).
54                 addTransition(new Recolor().addTarget(R.id.container));
55 
56         TransitionSet transitionToSearch = new TransitionSet();
57         transitionToSearch.addTransition(fade).
58                 addTransition(new ChangeBounds().addTarget(R.id.searchContainer)).
59                 addTransition(new Recolor().addTarget(R.id.container));
60 
61         mTransitionManager = new TransitionManager();
62         mTransitionManager.setTransition(mSearchScreen, transitionToSearch);
63         mTransitionManager.setTransition(mResultsScreen, transitionToResults);
64     }
65 
sendMessage(View view)66     public void sendMessage(View view) {
67         if (mCurrentScene == mResultsScreen) {
68             mTransitionManager.transitionTo(mSearchScreen);
69             mCurrentScene = mSearchScreen;
70         } else {
71             mTransitionManager.transitionTo(mResultsScreen);
72             mCurrentScene = mResultsScreen;
73         }
74     }
75 }
76