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      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 package com.android.transitiontests;
     17 
     18 import android.app.Activity;
     19 import android.os.Bundle;
     20 import android.view.View;
     21 import android.view.ViewGroup;
     22 import android.transition.Fade;
     23 import android.transition.ChangeBounds;
     24 import android.transition.Recolor;
     25 import android.transition.Scene;
     26 import android.transition.TransitionSet;
     27 import android.transition.TransitionManager;
     28 
     29 public class Demo2 extends Activity {
     30     ViewGroup mSceneRoot;
     31     static Scene mCurrentScene;
     32     boolean mFirstTime = true;
     33     Scene mSearchScreen, mResultsScreen;
     34     TransitionManager mTransitionManager = null;
     35 
     36     @Override
     37     public void onCreate(Bundle savedInstanceState) {
     38         super.onCreate(savedInstanceState);
     39         setContentView(R.layout.search_screen);
     40 
     41         View container = findViewById(R.id.container);
     42         mSceneRoot = (ViewGroup) container.getParent();
     43 
     44     }
     45 
     46     public void sendMessage(View view) {
     47         if (mFirstTime) {
     48             mFirstTime = false;
     49             // Non-resource approach of creating scenes
     50 //        mSearchScreen = new Scene(this, mSceneRoot, R.layout.search_screen);
     51 //        mResultsScreen = new Scene(this, mSceneRoot, R.layout.results_screen);
     52             try {
     53                 mSearchScreen = Scene.getSceneForLayout(mSceneRoot, R.layout.search_screen, this);
     54                 mResultsScreen = Scene.getSceneForLayout(mSceneRoot, R.layout.search_screen, this);
     55             } catch (Exception e) {
     56                 System.out.println("Problem loading scene resource: " + e);
     57             }
     58 
     59             TransitionSet transition = new TransitionSet();
     60             transition.addTransition(new Fade().addTarget(R.id.resultsText).
     61                     addTarget(R.id.resultsList)).
     62                     addTransition(new ChangeBounds().addTarget(R.id.searchContainer)).
     63                     addTransition(new Recolor().addTarget(R.id.container));
     64             mTransitionManager = new TransitionManager();
     65             mTransitionManager.setTransition(mSearchScreen, transition);
     66             mTransitionManager.setTransition(mResultsScreen, transition);
     67         }
     68         if (mCurrentScene == mResultsScreen) {
     69             mTransitionManager.transitionTo(mSearchScreen);
     70             mCurrentScene = mSearchScreen;
     71         } else {
     72             mTransitionManager.transitionTo(mResultsScreen);
     73             mCurrentScene = mResultsScreen;
     74         }
     75     }
     76 }
     77