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.widget.Button;
23 
24 
25 public class OverlayTest extends Activity {
26 
27     ViewGroup mContainer;
28     ViewGroup mRoot;
29 
30     @Override
onCreate(Bundle savedInstanceState)31     protected void onCreate(Bundle savedInstanceState) {
32         super.onCreate(savedInstanceState);
33         setContentView(R.layout.overlay_test);
34 
35         mContainer = (ViewGroup) findViewById(R.id.container);
36         mRoot = (ViewGroup) mContainer.getParent();
37     }
38 
onClick(View view)39     public void onClick(View view) {
40         final Button fadingButton = (Button) findViewById(R.id.fadingButton);
41         if (fadingButton != null) {
42             mContainer.removeView(fadingButton);
43             mRoot.getOverlay().add(fadingButton);
44             fadingButton.animate().alpha(0).setDuration(1000).withEndAction(new Runnable() {
45                 @Override
46                 public void run() {
47                     fadingButton.setAlpha(1);
48                     mRoot.getOverlay().remove(fadingButton);
49                     mContainer.addView(fadingButton);
50                 }
51             });
52         }
53     }
54 }
55