Demo2.java revision faebd8f0795b7d275fb4e503533c8c0c4a9acc21 
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;
29import com.android.transitiontest.R;
30
31public class Demo2 extends Activity {
32    ViewGroup mSceneRoot;
33    static Scene mCurrentScene;
34    boolean mFirstTime = true;
35    Scene mSearchScreen, mResultsScreen;
36    TransitionManager mTransitionManager = null;
37
38    @Override
39    public void onCreate(Bundle savedInstanceState) {
40        super.onCreate(savedInstanceState);
41        setContentView(R.layout.search_screen);
42
43        View container = (View) findViewById(R.id.container);
44        mSceneRoot = (ViewGroup) container.getParent();
45
46    }
47
48    public void sendMessage(View view) {
49        if (mFirstTime) {
50            mFirstTime = false;
51            // Non-resource approach of creating scenes
52//        mSearchScreen = new Scene(this, mSceneRoot, R.layout.search_screen);
53//        mResultsScreen = new Scene(this, mSceneRoot, R.layout.results_screen);
54            try {
55                mSearchScreen = TransitionInflater.from(this).
56                        inflateScene(R.scene.search_scene, mSceneRoot);
57                mResultsScreen = TransitionInflater.from(this).
58                        inflateScene(R.scene.results_scene, mSceneRoot);
59            } catch (Exception e) {
60                System.out.println("Problem loading scene resource: " + e);
61            }
62
63            TransitionGroup transition = new TransitionGroup();
64            transition.addTransitions(new Fade().setTargetIds(R.id.resultsText, R.id.resultsList),
65                    new Move().setTargetIds(R.id.searchContainer),
66                    new Recolor().setTargetIds(R.id.container));
67            mTransitionManager = new TransitionManager();
68            mTransitionManager.setTransition(mSearchScreen, transition);
69            mTransitionManager.setTransition(mResultsScreen, transition);
70        }
71        if (mCurrentScene == mResultsScreen) {
72            mTransitionManager.transitionTo(mSearchScreen);
73            mCurrentScene = mSearchScreen;
74        } else {
75            mTransitionManager.transitionTo(mResultsScreen);
76            mCurrentScene = mResultsScreen;
77        }
78    }
79}
80