Demo2.java revision 797b7559d6d8d5dc7c1903f345162751a57560f6 
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.view.View;
21import android.view.ViewGroup;
22import android.view.transition.Fade;
23import android.view.transition.Move;
24import android.view.transition.Recolor;
25import android.view.transition.Scene;
26import android.view.transition.TransitionInflater;
27import android.view.transition.TransitionGroup;
28import android.view.transition.TransitionManager;
29
30public class Demo2 extends Activity {
31    ViewGroup mSceneRoot;
32    static Scene mCurrentScene;
33    boolean mFirstTime = true;
34    Scene mSearchScreen, mResultsScreen;
35    TransitionManager mTransitionManager = null;
36
37    @Override
38    public void onCreate(Bundle savedInstanceState) {
39        super.onCreate(savedInstanceState);
40        setContentView(R.layout.search_screen);
41
42        View container = (View) findViewById(R.id.container);
43        mSceneRoot = (ViewGroup) container.getParent();
44
45    }
46
47    public void sendMessage(View view) {
48        if (mFirstTime) {
49            mFirstTime = false;
50            // Non-resource approach of creating scenes
51//        mSearchScreen = new Scene(this, mSceneRoot, R.layout.search_screen);
52//        mResultsScreen = new Scene(this, mSceneRoot, R.layout.results_screen);
53            try {
54                mSearchScreen = TransitionInflater.from(this).
55                        inflateScene(R.scene.search_scene, mSceneRoot);
56                mResultsScreen = TransitionInflater.from(this).
57                        inflateScene(R.scene.results_scene, mSceneRoot);
58            } catch (Exception e) {
59                System.out.println("Problem loading scene resource: " + e);
60            }
61
62            TransitionGroup transition = new TransitionGroup();
63            transition.addTransitions(new Fade().setTargetIds(R.id.resultsText, R.id.resultsList),
64                    new Move().setTargetIds(R.id.searchContainer),
65                    new Recolor().setTargetIds(R.id.container));
66            mTransitionManager = new TransitionManager();
67            mTransitionManager.setTransition(mSearchScreen, transition);
68            mTransitionManager.setTransition(mResultsScreen, transition);
69        }
70        if (mCurrentScene == mResultsScreen) {
71            mTransitionManager.transitionTo(mSearchScreen);
72            mCurrentScene = mSearchScreen;
73        } else {
74            mTransitionManager.transitionTo(mResultsScreen);
75            mCurrentScene = mResultsScreen;
76        }
77    }
78}
79