| /* |
| * Copyright (C) 2021 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.permission4.cts.appthataccessesmic |
| |
| import android.app.Activity |
| import android.app.AppOpsManager |
| import android.media.AudioFormat |
| import android.media.AudioRecord |
| import android.media.MediaRecorder |
| import kotlinx.coroutines.GlobalScope |
| import kotlinx.coroutines.delay |
| import kotlinx.coroutines.launch |
| |
| private const val USE_DURATION_MS = 10000L |
| private const val SAMPLE_RATE_HZ = 44100 |
| |
| class AccessMicActivity : Activity() { |
| private var recorder: AudioRecord? = null |
| private var appOpsManager: AppOpsManager? = null |
| |
| override fun onStart() { |
| super.onStart() |
| useMic() |
| } |
| |
| override fun finish() { |
| recorder?.stop() |
| recorder = null |
| appOpsManager = null |
| super.finish() |
| } |
| |
| override fun onStop() { |
| super.onStop() |
| finish() |
| } |
| |
| private fun useMic() { |
| val minSize = |
| AudioRecord.getMinBufferSize(SAMPLE_RATE_HZ, AudioFormat.CHANNEL_IN_MONO, |
| AudioFormat.ENCODING_PCM_16BIT) |
| recorder = AudioRecord(MediaRecorder.AudioSource.MIC, SAMPLE_RATE_HZ, |
| AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, minSize) |
| recorder?.startRecording() |
| GlobalScope.launch { |
| delay(USE_DURATION_MS) |
| finish() |
| } |
| } |
| } |