1 /*
2  * Copyright (C) 2012 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.android.cts.audiotest;
18 
19 import android.app.Activity;
20 import android.app.KeyguardManager;
21 import android.content.Context;
22 import android.media.AudioManager;
23 import android.os.Bundle;
24 
25 
26 public class CtsAudioClientActivity extends Activity {
27     private AudioProtocol mProtocol = null;
28     int mVolumeMusic;
29     int mVolumeVoice;
30     @Override
onPause()31     protected void onPause() {
32         try {
33             mProtocol.stop();
34         } catch (InterruptedException e) {
35             e.printStackTrace();
36         }
37         mProtocol = null;
38         setVolume(AudioManager.STREAM_MUSIC, mVolumeMusic);
39         setVolume(AudioManager.STREAM_VOICE_CALL, mVolumeVoice);
40         super.onPause();
41     }
42 
43     @Override
onResume()44     protected void onResume() {
45         // set volume to max
46         mVolumeMusic = setVolume(AudioManager.STREAM_MUSIC, -1);
47         mVolumeVoice = setVolume(AudioManager.STREAM_VOICE_CALL, -1);
48         mProtocol = new AudioProtocol();
49         mProtocol.start();
50         super.onResume();
51     }
52 
53     /** Called when the activity is first created. */
54     @Override
onCreate(Bundle savedInstanceState)55     public void onCreate(Bundle savedInstanceState) {
56         super.onCreate(savedInstanceState);
57         setContentView(R.layout.main);
58         KeyguardManager keyguardManager =
59             (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
60         keyguardManager.newKeyguardLock("cts-audio").disableKeyguard();
61     }
62 
63     /**
64      * set volume to desired level
65      * @param level target level, if -1, set to max
66      * @return the original volume level
67      */
setVolume(int stream, int level)68     int setVolume(int stream, int level) {
69         AudioManager mgr = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
70         mgr.setStreamMute(stream, false);
71         int original = mgr.getStreamVolume(AudioManager.STREAM_MUSIC);
72         int targetLevel = level;
73         if (level == -1) {
74             targetLevel = mgr.getStreamMaxVolume(stream);
75         }
76         mgr.setStreamVolume(stream, targetLevel, 0);
77         return original;
78     }
79 }