1 /*
2  * Copyright (C) 2020 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.permissioncontroller.permission.data
18 
19 import android.content.BroadcastReceiver
20 import android.content.Context
21 import android.content.Intent
22 import android.content.IntentFilter
23 import android.media.AudioManager
24 import com.android.permissioncontroller.PermissionControllerApplication
25 import kotlinx.coroutines.Job
26 
27 /**
28  * Tracks whether the mic is muted or not
29  */
30 val micMutedLiveData = object : SmartAsyncMediatorLiveData<Boolean>() {
31     private val app = PermissionControllerApplication.get()
32 
33     private val isMicMuteRecevicer = object : BroadcastReceiver() {
34         override fun onReceive(context: Context?, intent: Intent?) {
35             update()
36         }
37     }
38 
39     override suspend fun loadDataAndPostValue(job: Job) {
40         postValue(app.getSystemService(AudioManager::class.java).isMicrophoneMute())
41     }
42 
43     override fun onActive() {
44         super.onActive()
45 
46         app.registerReceiver(isMicMuteRecevicer,
47                 IntentFilter(AudioManager.ACTION_MICROPHONE_MUTE_CHANGED))
48         update()
49     }
50 
51     override fun onInactive() {
52         super.onInactive()
53 
54         app.unregisterReceiver(isMicMuteRecevicer)
55     }
56 }
57