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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.widget.Button;
     24 import android.transition.Fade;
     25 import android.transition.TransitionManager;
     26 
     27 
     28 public class FadingTest extends Activity {
     29 
     30     Button mRemovingButton, mInvisibleButton, mGoneButton;
     31     Scene mScene1, mScene2;
     32     ViewGroup mSceneRoot;
     33     static Fade sFade = new Fade();
     34     Scene mCurrentScene;
     35 
     36     static {
     37         sFade.addTarget(R.id.removingButton).addTarget(R.id.invisibleButton).
     38                 addTarget(R.id.goneButton);
     39     }
     40 
     41     @Override
     42     public void onCreate(Bundle savedInstanceState) {
     43         super.onCreate(savedInstanceState);
     44         setContentView(R.layout.fading_test);
     45 
     46         View container = findViewById(R.id.container);
     47         mSceneRoot = (ViewGroup) container.getParent();
     48 
     49 
     50         mRemovingButton = findViewById(R.id.removingButton);
     51         mInvisibleButton = findViewById(R.id.invisibleButton);
     52         mGoneButton = findViewById(R.id.goneButton);
     53 
     54         mGoneButton.setOnClickListener(new View.OnClickListener() {
     55             @Override
     56             public void onClick(View v) {
     57                 mGoneButton.setAlpha(mGoneButton.getAlpha() < 1 ? 1 : .6f);
     58             }
     59         });
     60 
     61         mScene1 = Scene.getSceneForLayout(mSceneRoot, R.layout.fading_test, this);
     62         mScene2 = Scene.getSceneForLayout(mSceneRoot, R.layout.fading_test_scene_2, this);
     63 
     64         mCurrentScene = mScene1;
     65     }
     66 
     67     public void sendMessage(View view) {
     68         if (mCurrentScene == mScene1) {
     69             TransitionManager.go(mScene2);
     70             mCurrentScene = mScene2;
     71         } else {
     72             TransitionManager.go(mScene1);
     73             mCurrentScene = mScene1;
     74         }
     75     }
     76 
     77 }
     78