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 com.example.android.apis.graphics;
18 
19 import android.app.Activity;
20 import android.opengl.GLSurfaceView;
21 import android.os.Bundle;
22 import android.view.View;
23 import android.view.View.OnClickListener;
24 import android.widget.Button;
25 
26 //Need the following import to get access to the app resources, since this
27 //class is in a sub-package.
28 import com.example.android.apis.R;
29 
30 /**
31  * Demonstration of overlays placed on top of a SurfaceView.
32  */
33 public class SurfaceViewOverlay extends Activity {
34     View mVictimContainer;
35     View mVictim1;
36     View mVictim2;
37 
38     @Override
onCreate(Bundle savedInstanceState)39     protected void onCreate(Bundle savedInstanceState) {
40         super.onCreate(savedInstanceState);
41 
42         setContentView(R.layout.surface_view_overlay);
43 
44         GLSurfaceView glSurfaceView =
45             (GLSurfaceView) findViewById(R.id.glsurfaceview);
46         glSurfaceView.setRenderer(new CubeRenderer(false));
47 
48         // Find the views whose visibility will change
49         mVictimContainer = findViewById(R.id.hidecontainer);
50         mVictim1 = findViewById(R.id.hideme1);
51         mVictim1.setOnClickListener(new HideMeListener(mVictim1));
52         mVictim2 = findViewById(R.id.hideme2);
53         mVictim2.setOnClickListener(new HideMeListener(mVictim2));
54 
55         // Find our buttons
56         Button visibleButton = (Button) findViewById(R.id.vis);
57         Button invisibleButton = (Button) findViewById(R.id.invis);
58         Button goneButton = (Button) findViewById(R.id.gone);
59 
60         // Wire each button to a click listener
61         visibleButton.setOnClickListener(mVisibleListener);
62         invisibleButton.setOnClickListener(mInvisibleListener);
63         goneButton.setOnClickListener(mGoneListener);
64     }
65 
66     @Override
onResume()67     protected void onResume() {
68         // Ideally a game should implement onResume() and onPause()
69         // to take appropriate action when the activity looses focus
70         super.onResume();
71     }
72 
73     @Override
onPause()74     protected void onPause() {
75         // Ideally a game should implement onResume() and onPause()
76         // to take appropriate action when the activity looses focus
77         super.onPause();
78     }
79 
80     class HideMeListener implements OnClickListener {
81         final View mTarget;
82 
HideMeListener(View target)83         HideMeListener(View target) {
84             mTarget = target;
85         }
86 
onClick(View v)87         public void onClick(View v) {
88             mTarget.setVisibility(View.INVISIBLE);
89         }
90 
91     }
92 
93     OnClickListener mVisibleListener = new OnClickListener() {
94         public void onClick(View v) {
95             mVictim1.setVisibility(View.VISIBLE);
96             mVictim2.setVisibility(View.VISIBLE);
97             mVictimContainer.setVisibility(View.VISIBLE);
98         }
99     };
100 
101     OnClickListener mInvisibleListener = new OnClickListener() {
102         public void onClick(View v) {
103             mVictim1.setVisibility(View.INVISIBLE);
104             mVictim2.setVisibility(View.INVISIBLE);
105             mVictimContainer.setVisibility(View.INVISIBLE);
106         }
107     };
108 
109     OnClickListener mGoneListener = new OnClickListener() {
110         public void onClick(View v) {
111             mVictim1.setVisibility(View.GONE);
112             mVictim2.setVisibility(View.GONE);
113             mVictimContainer.setVisibility(View.GONE);
114         }
115     };
116 }
117