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
17package android.transition;
18
19import android.content.Context;
20import android.util.AttributeSet;
21
22/**
23 * Utility class for creating a default transition that automatically fades,
24 * moves, and resizes views during a scene change.
25 *
26 * <p>An AutoTransition can be described in a resource file by using the
27 * tag <code>autoTransition</code>, along with the other standard
28 * attributes of {@link android.R.styleable#Transition}.</p>
29 */
30public class AutoTransition extends TransitionSet {
31
32    /**
33     * Constructs an AutoTransition object, which is a TransitionSet which
34     * first fades out disappearing targets, then moves and resizes existing
35     * targets, and finally fades in appearing targets.
36     *
37     */
38    public AutoTransition() {
39        init();
40    }
41
42    public AutoTransition(Context context, AttributeSet attrs) {
43        super(context, attrs);
44        init();
45    }
46
47    private void init() {
48        setOrdering(ORDERING_SEQUENTIAL);
49        addTransition(new Fade(Fade.OUT)).
50                addTransition(new ChangeBounds()).
51                addTransition(new Fade(Fade.IN));
52    }
53}
54