Add audio/focus options to AudioSwitchHandler (#246)

Also changed the default audio mode to MODE_NORMAL and focus mode to AUDIOFOCUS_GAIN, and the default input audio source to DEFAULT

@@ -140,7 +140,7 @@ dependencies {
     implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.1.0'
     api 'io.github.webrtc-sdk:android:104.5112.10'
     api "com.squareup.okhttp3:okhttp:4.10.0"
-    api 'com.github.davidliu:audioswitch:8edf84ee46cdbc84c2b7725aa8f8d66363e19876'
+    api 'com.github.davidliu:audioswitch:fb33b237aa50b3d1d2dea0e0695ecb7b38a98971'
     implementation "androidx.annotation:annotation:1.4.0"
     implementation "androidx.core:core:${versions.androidx_core}"
     implementation "com.google.protobuf:protobuf-javalite:${versions.protobuf}"

 package io.livekit.android.audio
 
 import android.content.Context
-import android.media.AudioDeviceInfo
 import android.media.AudioManager
 import android.os.Build
 import android.os.Handler
@@ -49,6 +48,20 @@ constructor(private val context: Context) : AudioHandler {
      */
     var preferredDeviceList: List<Class<out AudioDevice>>? = null
 
+    /**
+     * The audio mode to use while started.
+     *
+     * Defaults to [AudioManager.MODE_NORMAL].
+     */
+    var audioMode: Int = AudioManager.MODE_NORMAL
+
+    /**
+     * The audio focus mode to use while started.
+     *
+     * Defaults to [AudioManager.AUDIOFOCUS_GAIN].
+     */
+    var focusMode: Int = AudioManager.AUDIOFOCUS_GAIN
+
     private var audioSwitch: AbstractAudioSwitch? = null
 
     // AudioSwitch is not threadsafe, so all calls should be done on the main thread.
@@ -74,55 +87,10 @@ constructor(private val context: Context) : AudioHandler {
                             preferredDeviceList = preferredDeviceList ?: defaultPreferredDeviceList
                         )
                     }
+                switch.audioMode = audioMode
+                switch.focusMode = focusMode
                 audioSwitch = switch
-                switch.start { audioDevices: List<AudioDevice>, selectedAudioDevice: AudioDevice? ->
-
-                    // On >S, some devices don't properly use bluetooth mic if no audio tracks.
-                    // Using the new communication devices api fixes this.
-                    // TODO: Move into AudioSwitch itself
-                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
-                        val audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
-                        val commDevices = audioManager.availableCommunicationDevices
-
-                        val audioDeviceInfo = when (selectedAudioDevice) {
-                            is AudioDevice.BluetoothHeadset -> {
-                                commDevices.firstOrNull { info ->
-                                    info.type == AudioDeviceInfo.TYPE_BLUETOOTH_SCO || info.type == AudioDeviceInfo.TYPE_BLUETOOTH_A2DP
-                                }
-                            }
-
-                            is AudioDevice.Earpiece -> {
-                                commDevices.firstOrNull { info ->
-                                    info.type == AudioDeviceInfo.TYPE_BUILTIN_EARPIECE
-                                }
-                            }
-
-                            is AudioDevice.Speakerphone -> {
-                                commDevices.firstOrNull { info ->
-                                    info.type == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER
-                                }
-                            }
-
-                            is AudioDevice.WiredHeadset -> {
-                                commDevices.firstOrNull { info ->
-                                    info.type == AudioDeviceInfo.TYPE_WIRED_HEADSET || info.type == AudioDeviceInfo.TYPE_WIRED_HEADPHONES
-                                }
-                            }
-
-                            else -> {
-                                null
-                            }
-                        }
-
-                        if (audioDeviceInfo != null) {
-                            audioManager.setCommunicationDevice(audioDeviceInfo)
-                        } else {
-                            audioManager.clearCommunicationDevice()
-                        }
-                    }
-
-                    audioDeviceChangeListener?.invoke(audioDevices, selectedAudioDevice)
-                }
+                switch.start(audioDeviceChangeListener ?: defaultAudioDeviceChangeListener)
                 switch.activate()
             }
         }

 package io.livekit.android.dagger
 
 import android.content.Context
+import android.media.MediaRecorder
 import android.os.Build
 import androidx.annotation.Nullable
 import dagger.Module
@@ -103,6 +104,7 @@ object RTCModule {
             .setAudioTrackErrorCallback(audioTrackErrorCallback)
             .setAudioRecordStateCallback(audioRecordStateCallback)
             .setAudioTrackStateCallback(audioTrackStateCallback)
+            .setAudioSource(MediaRecorder.AudioSource.DEFAULT)
 
         moduleCustomizer?.invoke(builder)
         return builder.createAudioDeviceModule()