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 com.android.frameworks.coretests.R;
20 
21 import android.os.Bundle;
22 import android.widget.Button;
23 import android.view.View;
24 import android.app.Activity;
25 
26 /**
27  * Exercise View's ability to change their visibility: GONE, INVISIBLE and
28  * VISIBLE.
29  */
30 public class Visibility extends Activity {
31     @Override
onCreate(Bundle icicle)32     protected void onCreate(Bundle icicle) {
33         super.onCreate(icicle);
34         setContentView(R.layout.visibility);
35 
36         // Find the view whose visibility will change
37         mVictim = findViewById(R.id.victim);
38 
39         // Find our buttons
40         Button visibleButton = findViewById(R.id.vis);
41         Button invisibleButton = findViewById(R.id.invis);
42         Button goneButton = findViewById(R.id.gone);
43 
44         // Wire each button to a click listener
45         visibleButton.setOnClickListener(mVisibleListener);
46         invisibleButton.setOnClickListener(mInvisibleListener);
47         goneButton.setOnClickListener(mGoneListener);
48     }
49 
50 
51     View.OnClickListener mVisibleListener = new View.OnClickListener() {
52         public void onClick(View v) {
53             mVictim.setVisibility(View.VISIBLE);
54         }
55     };
56 
57     View.OnClickListener mInvisibleListener = new View.OnClickListener() {
58         public void onClick(View v) {
59             mVictim.setVisibility(View.INVISIBLE);
60         }
61     };
62 
63     View.OnClickListener mGoneListener = new View.OnClickListener() {
64         public void onClick(View v) {
65             mVictim.setVisibility(View.GONE);
66         }
67     };
68 
69     private View mVictim;
70 }
71