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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.Scene;
     23 import android.transition.Transition;
     24 import android.transition.TransitionSet;
     25 import android.widget.Button;
     26 import android.transition.Fade;
     27 import android.transition.ChangeBounds;
     28 import android.transition.TransitionManager;
     29 
     30 
     31 public class SequenceTest extends Activity {
     32 
     33     Button mRemovingButton, mInvisibleButton, mGoneButton;
     34     Scene mScene1, mScene2;
     35     ViewGroup mSceneRoot;
     36     TransitionSet sequencedFade, reverseSequencedFade;
     37     Scene mCurrentScene;
     38 
     39     @Override
     40     public void onCreate(Bundle savedInstanceState) {
     41         super.onCreate(savedInstanceState);
     42         setContentView(R.layout.fading_test);
     43 
     44         View container = (View) findViewById(R.id.container);
     45         mSceneRoot = (ViewGroup) container.getParent();
     46 
     47         mRemovingButton = (Button) findViewById(R.id.removingButton);
     48         mInvisibleButton = (Button) findViewById(R.id.invisibleButton);
     49         mGoneButton = (Button) findViewById(R.id.goneButton);
     50 
     51         mScene1 = Scene.getSceneForLayout(mSceneRoot, R.layout.fading_test, this);
     52         mScene2 = Scene.getSceneForLayout(mSceneRoot, R.layout.fading_test_scene_2, this);
     53 
     54         Transition fade1 = new Fade().addTarget(R.id.removingButton);
     55         Transition fade2 = new Fade().addTarget(R.id.invisibleButton);
     56         Transition fade3 = new Fade().addTarget(R.id.goneButton);
     57         TransitionSet fader = new TransitionSet().
     58                 setOrdering(TransitionSet.ORDERING_SEQUENTIAL);
     59         fader.addTransition(fade1).addTransition(fade2).addTransition(fade3).
     60                 addTransition(new ChangeBounds());
     61         sequencedFade = fader;
     62 
     63         reverseSequencedFade = new TransitionSet().
     64                 setOrdering(TransitionSet.ORDERING_SEQUENTIAL);
     65         reverseSequencedFade.addTransition(new ChangeBounds()).addTransition(fade3).addTransition(fade2).
     66                 addTransition(fade1);
     67 
     68         mCurrentScene = mScene1;
     69     }
     70 
     71     public void sendMessage(View view) {
     72         if (mCurrentScene == mScene1) {
     73             TransitionManager.go(mScene2, sequencedFade);
     74             mCurrentScene = mScene2;
     75         } else {
     76             TransitionManager.go(mScene1, reverseSequencedFade);
     77             mCurrentScene = mScene1;
     78         }
     79     }
     80 }
     81