1 /*
2  * Copyright (C) 2007 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 
17 package android.view;
18 
19 import android.app.Activity;
20 import android.os.Bundle;
21 import android.widget.TextView;
22 import android.view.View;
23 import android.view.ViewTreeObserver;
24 import com.android.frameworks.coretests.R;
25 
26 /**
27  * Tests views using post*() and getViewTreeObserver() before onAttachedToWindow().
28  */
29 public class RunQueue extends Activity implements ViewTreeObserver.OnGlobalLayoutListener {
30     public boolean runnableRan = false;
31     public boolean runnableCancelled = true;
32     public boolean globalLayout = false;
33     public ViewTreeObserver viewTreeObserver;
34 
35     @Override
onCreate(Bundle icicle)36     protected void onCreate(Bundle icicle) {
37         super.onCreate(icicle);
38 
39         TextView textView = new TextView(this);
40         textView.setText("RunQueue");
41         textView.setId(R.id.simple_view);
42 
43         setContentView(textView);
44         final View view = findViewById(R.id.simple_view);
45 
46         view.post(new Runnable() {
47             public void run() {
48                 runnableRan = true;
49             }
50         });
51 
52         final Runnable runnable = new Runnable() {
53             public void run() {
54                 runnableCancelled = false;
55             }
56         };
57         view.post(runnable);
58         view.post(runnable);
59         view.post(runnable);
60         view.post(runnable);
61         view.removeCallbacks(runnable);
62 
63         viewTreeObserver = view.getViewTreeObserver();
64         viewTreeObserver.addOnGlobalLayoutListener(this);
65     }
66 
onGlobalLayout()67     public void onGlobalLayout() {
68         globalLayout = true;
69     }
70 }
71