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 */
16package com.android.transitiontests;
17
18import android.app.Activity;
19import android.os.Bundle;
20import android.transition.ChangeBounds;
21import android.view.View;
22import android.view.ViewGroup;
23import android.transition.Transition;
24import android.transition.TransitionSet;
25import android.transition.TransitionManager;
26import android.widget.Button;
27
28import static android.widget.LinearLayout.LayoutParams;
29
30public class HierarchicalMove extends Activity {
31
32    Button[] buttons = new Button[6];
33    ViewGroup mSceneRoot;
34    boolean wide = false;
35    Transition mTransition;
36
37    @Override
38    public void onCreate(Bundle savedInstanceState) {
39        super.onCreate(savedInstanceState);
40        setContentView(R.layout.hierarchical_move);
41
42        View container = (View) findViewById(R.id.container);
43        mSceneRoot = (ViewGroup) container.getParent();
44
45        buttons[0] = (Button) findViewById(R.id.button0);
46        buttons[1] = (Button) findViewById(R.id.button1);
47        buttons[2] = (Button) findViewById(R.id.button2);
48        buttons[3] = (Button) findViewById(R.id.button3);
49        buttons[4] = (Button) findViewById(R.id.button4);
50        buttons[5] = (Button) findViewById(R.id.button5);
51
52        // Move button0, then buttons 1/2 together, then buttons 3/4/5 sequentially:
53        // group (seq)
54        //    Move 0
55        //    group (seq)
56        //       group (together)
57        //          Move 1
58        //          Move 2
59        //       group (sequentially)
60        //          Move 3
61        //          Move 4/5
62        TransitionSet rootTransition = new TransitionSet().
63                setOrdering(TransitionSet.ORDERING_SEQUENTIAL);
64
65        // button0
66        Transition move0 = new ChangeBounds();
67        move0.addTarget(buttons[0]);
68
69        // buttons 1/2/3/4/5
70        TransitionSet group12345 = new TransitionSet().
71                setOrdering(TransitionSet.ORDERING_SEQUENTIAL);
72
73        // buttons 1/2
74        TransitionSet group12 = new TransitionSet().
75                setOrdering(TransitionSet.ORDERING_TOGETHER);
76        ChangeBounds changeBounds1 = new ChangeBounds();
77        changeBounds1.addTarget(buttons[1]);
78        ChangeBounds changeBounds2 = new ChangeBounds();
79        changeBounds2.addTarget(buttons[2]);
80        group12.addTransition(changeBounds1).addTransition(changeBounds2);
81
82        TransitionSet group345 = new TransitionSet().
83                setOrdering(TransitionSet.ORDERING_SEQUENTIAL);
84        ChangeBounds changeBounds3 = new ChangeBounds();
85        changeBounds3.addTarget(buttons[3]);
86        ChangeBounds changeBounds45 = new ChangeBounds();
87        changeBounds45.addTarget(buttons[4]).addTarget(buttons[5]);
88        group345.addTransition(changeBounds3).addTransition(changeBounds45);
89
90        group12345.addTransition(move0).addTransition(group12).addTransition(group345);
91
92        rootTransition.addTransition(group12345);
93        rootTransition.setDuration(1000);
94        mTransition = rootTransition;
95
96    }
97
98    public void sendMessage(View view) {
99        TransitionManager.beginDelayedTransition(mSceneRoot, mTransition);
100        int widthSpec = wide ? LayoutParams.WRAP_CONTENT : LayoutParams.MATCH_PARENT;
101        LayoutParams params = new LayoutParams(widthSpec, LayoutParams.WRAP_CONTENT);
102        for (int i = 0; i < buttons.length; ++i) {
103            buttons[i].setLayoutParams(params);
104        }
105        wide = !wide;
106    }
107
108}
109