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.Crossfade;
24import android.transition.Scene;
25import android.transition.TransitionSet;
26import android.transition.TransitionManager;
27
28
29public class CrossFadeDemo extends Activity {
30
31    ViewGroup mSceneRoot;
32    static int mCurrentScene;
33    Scene mScene1, mScene2;
34    TransitionManager mTransitionManager;
35
36    @Override
37    public void onCreate(Bundle savedInstanceState) {
38        super.onCreate(savedInstanceState);
39        setContentView(R.layout.crossfade);
40
41        View container = (View) findViewById(R.id.container);
42        mSceneRoot = (ViewGroup) container.getParent();
43
44        mScene1 = Scene.getSceneForLayout(mSceneRoot, R.layout.crossfade, this);
45        mScene2 = Scene.getSceneForLayout(mSceneRoot, R.layout.crossfade_1, this);
46
47        Crossfade crossfade = new Crossfade();
48        crossfade.setFadeBehavior(Crossfade.FADE_BEHAVIOR_CROSSFADE);
49        crossfade.setResizeBehavior(Crossfade.RESIZE_BEHAVIOR_NONE);
50        crossfade.addTarget(R.id.textview).addTarget(R.id.textview1).
51                addTarget(R.id.textview2);
52        mTransitionManager = new TransitionManager();
53        TransitionSet moveCrossFade = new TransitionSet();
54        moveCrossFade.addTransition(crossfade).addTransition(new ChangeBounds());
55        mTransitionManager.setTransition(mScene1, moveCrossFade);
56        mTransitionManager.setTransition(mScene2, moveCrossFade);
57        mCurrentScene = 1;
58    }
59
60    public void sendMessage(View view) {
61        if (mCurrentScene == 1) {
62            mTransitionManager.transitionTo(mScene2);
63            mCurrentScene = 2;
64        } else {
65            mTransitionManager.transitionTo(mScene1);
66            mCurrentScene = 1;
67        }
68    }
69}
70