fix SpeakerPhone switch for mobile. (#312)

* fix SpeakerPhone switch for mobile.

* update.

example/lib/widgets/controls.dart

@@ -4,6 +4,7 @@ import 'dart:io';
 
 import 'package:collection/collection.dart';
 import 'package:eva_icons_flutter/eva_icons_flutter.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_background/flutter_background.dart';
 import 'package:livekit_client/livekit_client.dart';
@@ -36,6 +37,8 @@ class _ControlsWidgetState extends State<ControlsWidget> {
 
   StreamSubscription? _subscription;
 
+  bool _speakerphoneOn = false;
+
   @override
   void initState() {
     super.initState();
@@ -106,6 +109,12 @@ class _ControlsWidgetState extends State<ControlsWidget> {
     setState(() {});
   }
 
+  void _setSpeakerphoneOn() {
+    _speakerphoneOn = !_speakerphoneOn;
+    Hardware.instance.setSpeakerphoneOn(_speakerphoneOn);
+    setState(() {});
+  }
+
   void _toggleCamera() async {
     //
     final track = participant.videoTracks.firstOrNull?.track;
@@ -124,7 +133,7 @@ class _ControlsWidgetState extends State<ControlsWidget> {
   }
 
   void _enableScreenShare() async {
-    if (WebRTC.platformIsDesktop) {
+    if (lkPlatformIsDesktop()) {
       try {
         final source = await showDialog<DesktopCapturerSource>(
           context: context,
@@ -147,7 +156,7 @@ class _ControlsWidgetState extends State<ControlsWidget> {
       }
       return;
     }
-    if (WebRTC.platformIsAndroid) {
+    if (lkPlatformIs(PlatformType.android)) {
       // Android specific
       requestBackgroundPermission([bool isRetry = false]) async {
         // Required for android screenshare.
@@ -179,7 +188,7 @@ class _ControlsWidgetState extends State<ControlsWidget> {
 
       await requestBackgroundPermission();
     }
-    if (WebRTC.platformIsIOS) {
+    if (lkPlatformIs(PlatformType.iOS)) {
       var track = await LocalVideoTrack.createScreenShareTrack(
         const ScreenShareCaptureOptions(
           useiOSBroadcastExtension: true,
@@ -314,43 +323,54 @@ class _ControlsWidgetState extends State<ControlsWidget> {
               icon: const Icon(EvaIcons.micOff),
               tooltip: 'un-mute audio',
             ),
-          PopupMenuButton<MediaDevice>(
+          if (!lkPlatformIsMobile())
-            icon: const Icon(Icons.volume_up),
+            PopupMenuButton<MediaDevice>(
-            itemBuilder: (BuildContext context) {
+              icon: const Icon(Icons.volume_up),
-              return [
+              itemBuilder: (BuildContext context) {
-                const PopupMenuItem<MediaDevice>(
+                return [
-                  value: null,
+                  const PopupMenuItem<MediaDevice>(
-                  child: ListTile(
+                    value: null,
-                    leading: Icon(
+                    child: ListTile(
-                      EvaIcons.speaker,
+                      leading: Icon(
-                      color: Colors.white,
+                        EvaIcons.speaker,
-                    ),
+                        color: Colors.white,
-                    title: Text('Select Audio Output'),
-                  ),
-                ),
-                if (_audioOutputs != null)
-                  ..._audioOutputs!.map((device) {
-                    return PopupMenuItem<MediaDevice>(
-                      value: device,
-                      child: ListTile(
-                        leading: (device.deviceId ==
-                                widget.room.selectedAudioOutputDeviceId)
-                            ? const Icon(
-                                EvaIcons.checkmarkSquare,
-                                color: Colors.white,
-                              )
-                            : const Icon(
-                                EvaIcons.square,
-                                color: Colors.white,
-                              ),
-                        title: Text(device.label),
                       ),
-                      onTap: () => _selectAudioOutput(device),
+                      title: Text('Select Audio Output'),
-                    );
+                    ),
-                  }).toList()
+                  ),
-              ];
+                  if (_audioOutputs != null)
-            },
+                    ..._audioOutputs!.map((device) {
-          ),
+                      return PopupMenuItem<MediaDevice>(
+                        value: device,
+                        child: ListTile(
+                          leading: (device.deviceId ==
+                                  widget.room.selectedAudioOutputDeviceId)
+                              ? const Icon(
+                                  EvaIcons.checkmarkSquare,
+                                  color: Colors.white,
+                                )
+                              : const Icon(
+                                  EvaIcons.square,
+                                  color: Colors.white,
+                                ),
+                          title: Text(device.label),
+                        ),
+                        onTap: () => _selectAudioOutput(device),
+                      );
+                    }).toList()
+                ];
+              },
+            ),
+          if (!kIsWeb && lkPlatformIsMobile())
+            IconButton(
+              disabledColor: Colors.grey,
+              onPressed: Hardware.instance.canSwitchSpeakerphone
+                  ? _setSpeakerphoneOn
+                  : null,
+              icon: Icon(
+                  _speakerphoneOn ? Icons.speaker_phone : Icons.phone_android),
+              tooltip: 'Switch SpeakerPhone',
+            ),
           if (participant.isCameraEnabled())
             PopupMenuButton<MediaDevice>(
               icon: const Icon(EvaIcons.video),

lib/src/core/transport.dart

@@ -8,6 +8,7 @@ import '../internal/types.dart';
 import '../logger.dart';
 import '../options.dart';
 import '../support/disposable.dart';
+import '../support/platform.dart';
 import '../types/other.dart';
 import '../utils.dart';
 
@@ -128,7 +129,7 @@ class Transport extends Disposable {
       }
     }
 
-    if (restartingIce && !rtc.WebRTC.platformIsWeb) {
+    if (restartingIce && !lkPlatformIs(PlatformType.web)) {
       await pc.restartIce();
     }
 

lib/src/hardware/hardware.dart

@@ -4,6 +4,10 @@ import 'package:collection/collection.dart';
 import 'package:flutter_webrtc/flutter_webrtc.dart' as rtc;
 
 import '../logger.dart';
+import '../support/native.dart';
+import '../support/native_audio.dart';
+import '../support/platform.dart';
+import '../track/audio_management.dart';
 
 class MediaDevice {
   const MediaDevice(this.deviceId, this.label, this.kind);
@@ -59,6 +63,8 @@ class Hardware {
 
   bool? speakerOn;
 
+  bool _preferSpeakerOutput = false;
+
   Future<List<MediaDevice>> enumerateDevices({String? type}) async {
     var infos = await rtc.navigator.mediaDevices.enumerateDevices();
     var devices =
@@ -82,7 +88,7 @@ class Hardware {
   }
 
   Future<void> selectAudioOutput(MediaDevice device) async {
-    if (rtc.WebRTC.platformIsWeb) {
+    if (lkPlatformIs(PlatformType.web)) {
       logger.warning('selectAudioOutput not support on web');
       return;
     }
@@ -91,7 +97,7 @@ class Hardware {
   }
 
   Future<void> selectAudioInput(MediaDevice device) async {
-    if (rtc.WebRTC.platformIsWeb) {
+    if (lkPlatformIs(PlatformType.web)) {
       logger.warning(
           'selectAudioInput is only supported on Android/Windows/macOS');
       return;
@@ -100,10 +106,43 @@ class Hardware {
     await rtc.Helper.selectAudioInput(device.deviceId);
   }
 
+  Future<void> setPreferSpeakerOutput(bool enable) async {
+    if (lkPlatformIsMobile()) {
+      if (_preferSpeakerOutput != enable) {
+        NativeAudioConfiguration? config;
+        if (lkPlatformIs(PlatformType.iOS)) {
+          // Only iOS for now...
+          config = await onConfigureNativeAudio.call(audioTrackState);
+          logger.fine('configuring for ${audioTrackState} using ${config}...');
+          try {
+            await Native.configureAudio(config);
+          } catch (error) {
+            logger.warning('failed to configure ${error}');
+          }
+        }
+      }
+      _preferSpeakerOutput = enable;
+    } else {
+      logger.warning('setPreferSpeakerOutput only support on iOS/Android');
+    }
+  }
+
+  bool get preferSpeakerOutput => _preferSpeakerOutput;
+
+  bool get canSwitchSpeakerphone =>
+      lkPlatformIsMobile() &&
+      !_preferSpeakerOutput &&
+      [AudioTrackState.localOnly, AudioTrackState.localAndRemote]
+          .contains(audioTrackState);
+
   Future<void> setSpeakerphoneOn(bool enable) async {
-    if (rtc.WebRTC.platformIsMobile) {
+    if (lkPlatformIsMobile()) {
-      speakerOn = enable;
+      if (canSwitchSpeakerphone) {
-      await rtc.Helper.setSpeakerphoneOn(enable);
+        speakerOn = enable;
+        await rtc.Helper.setSpeakerphoneOn(enable);
+      } else {
+        logger.warning('Can\'t switch speaker/earpiece');
+      }
     } else {
       logger.warning('setSpeakerphoneOn only support on iOS/Android');
     }
@@ -115,7 +154,7 @@ class Hardware {
       if (facingMode != null) 'facingMode': facingMode ? 'user' : 'environment',
     };
     if (device != null) {
-      if (rtc.WebRTC.platformIsWeb) {
+      if (lkPlatformIs(PlatformType.web)) {
         constraints['deviceId'] = device.deviceId;
       } else {
         constraints['optional'] = [

lib/src/support/platform.dart

@@ -7,6 +7,15 @@ PlatformType lkPlatform() => lkPlatformImplementation();
 
 bool lkPlatformIs(PlatformType type) => lkPlatform() == type;
 
+bool lkPlatformIsMobile() =>
+    [PlatformType.iOS, PlatformType.android].contains(lkPlatform());
+
+bool lkPlatformIsDesktop() => [
+      PlatformType.macOS,
+      PlatformType.windows,
+      PlatformType.linux
+    ].contains(lkPlatform());
+
 bool lkPlatformSupportsE2EE() => lkE2EESupportedImplementation();
 
 bool lkPlatformIsTest() => Platform.environment.containsKey('FLUTTER_TEST');

lib/src/track/audio_management.dart

@@ -1,5 +1,6 @@
 import 'package:synchronized/synchronized.dart' as sync;
 
+import '../hardware/hardware.dart';
 import '../logger.dart';
 import '../support/native.dart';
 import '../support/native_audio.dart';
@@ -23,6 +24,9 @@ ConfigureNativeAudioFunc onConfigureNativeAudio =
 
 final _trackCounterLock = sync.Lock();
 AudioTrackState _audioTrackState = AudioTrackState.none;
+
+AudioTrackState get audioTrackState => _audioTrackState;
+
 int _localTrackCount = 0;
 int _remoteTrackCount = 0;
 
@@ -141,7 +145,9 @@ Future<NativeAudioConfiguration> defaultNativeAudioConfigurationFunc(
         AppleAudioCategoryOption.allowBluetooth,
         AppleAudioCategoryOption.mixWithOthers,
       },
-      appleAudioMode: AppleAudioMode.videoChat,
+      appleAudioMode: Hardware.instance.preferSpeakerOutput
+          ? AppleAudioMode.videoChat
+          : AppleAudioMode.voiceChat,
     );
   }
 

lib/src/track/options.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/foundation.dart' show kIsWeb;
 
-import 'package:flutter_webrtc/flutter_webrtc.dart';
+import '../support/platform.dart';
-
 import '../track/local/audio.dart';
 import '../track/local/video.dart';
 import '../types/video_parameters.dart';
@@ -132,10 +131,10 @@ class ScreenShareCaptureOptions extends VideoCaptureOptions {
   @override
   Map<String, dynamic> toMediaConstraintsMap() {
     var constraints = super.toMediaConstraintsMap();
-    if (useiOSBroadcastExtension && WebRTC.platformIsIOS) {
+    if (useiOSBroadcastExtension && lkPlatformIs(PlatformType.iOS)) {
       constraints['deviceId'] = 'broadcast';
     }
-    if (WebRTC.platformIsDesktop) {
+    if (lkPlatformIsDesktop()) {
       if (deviceId != null) {
         constraints['deviceId'] = {'exact': deviceId};
       }