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.view.View;
21 import android.view.ViewGroup;
22 import android.transition.Scene;
23 import android.transition.Transition;
24 import android.transition.TransitionSet;
25 import android.widget.Button;
26 import android.transition.Fade;
27 import android.transition.ChangeBounds;
28 import android.transition.TransitionManager;
29 
30 
31 public class SequenceTest extends Activity {
32 
33     Button mRemovingButton, mInvisibleButton, mGoneButton;
34     Scene mScene1, mScene2;
35     ViewGroup mSceneRoot;
36     TransitionSet sequencedFade, reverseSequencedFade;
37     Scene mCurrentScene;
38 
39     @Override
onCreate(Bundle savedInstanceState)40     public void onCreate(Bundle savedInstanceState) {
41         super.onCreate(savedInstanceState);
42         setContentView(R.layout.fading_test);
43 
44         View container = findViewById(R.id.container);
45         mSceneRoot = (ViewGroup) container.getParent();
46 
47         mRemovingButton = findViewById(R.id.removingButton);
48         mInvisibleButton = findViewById(R.id.invisibleButton);
49         mGoneButton = findViewById(R.id.goneButton);
50 
51         mScene1 = Scene.getSceneForLayout(mSceneRoot, R.layout.fading_test, this);
52         mScene2 = Scene.getSceneForLayout(mSceneRoot, R.layout.fading_test_scene_2, this);
53 
54         Transition fade1 = new Fade().addTarget(R.id.removingButton);
55         Transition fade2 = new Fade().addTarget(R.id.invisibleButton);
56         Transition fade3 = new Fade().addTarget(R.id.goneButton);
57         TransitionSet fader = new TransitionSet().
58                 setOrdering(TransitionSet.ORDERING_SEQUENTIAL);
59         fader.addTransition(fade1).addTransition(fade2).addTransition(fade3).
60                 addTransition(new ChangeBounds());
61         sequencedFade = fader;
62 
63         reverseSequencedFade = new TransitionSet().
64                 setOrdering(TransitionSet.ORDERING_SEQUENTIAL);
65         reverseSequencedFade.addTransition(new ChangeBounds()).addTransition(fade3).addTransition(fade2).
66                 addTransition(fade1);
67 
68         mCurrentScene = mScene1;
69     }
70 
sendMessage(View view)71     public void sendMessage(View view) {
72         if (mCurrentScene == mScene1) {
73             TransitionManager.go(mScene2, sequencedFade);
74             mCurrentScene = mScene2;
75         } else {
76             TransitionManager.go(mScene1, reverseSequencedFade);
77             mCurrentScene = mScene1;
78         }
79     }
80 }
81