1 /*
2  * Copyright (C) 2016 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.media.cts;
18 
19 import android.content.Context;
20 import android.content.Intent;
21 import android.content.IntentFilter;
22 import android.content.pm.PackageManager;
23 import android.media.AudioDeviceInfo;
24 import android.media.AudioManager;
25 
26 public class DeviceUtils {
27     private static final String TAG = "DeviceUtils";
28 
hasOutputDevice(AudioManager audioMgr)29     public static boolean hasOutputDevice(AudioManager audioMgr) {
30         AudioDeviceInfo[] devices = audioMgr.getDevices(AudioManager.GET_DEVICES_OUTPUTS);
31         return devices.length != 0;
32     }
33 
hasInputDevice(AudioManager audioMgr)34     public static boolean hasInputDevice(AudioManager audioMgr) {
35         AudioDeviceInfo[] devices = audioMgr.getDevices(AudioManager.GET_DEVICES_INPUTS);
36         return devices.length != 0;
37     }
38 
isTVDevice(Context context)39     public static boolean isTVDevice(Context context) {
40         return context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_LEANBACK);
41     }
42 
43     /*
44      * HDMI
45      */
isHDMIConnected(Context context)46     public static boolean isHDMIConnected(Context context) {
47         // configure the IntentFilter
48         IntentFilter intentFilter = new IntentFilter();
49         intentFilter.addAction(AudioManager.ACTION_HDMI_AUDIO_PLUG);
50         Intent intent = context.registerReceiver(null, intentFilter);
51 
52         return intent != null && intent.getIntExtra(AudioManager.EXTRA_AUDIO_PLUG_STATE, 0) != 0;
53     }
54 }
55