chore: audio device related changes

android/src/main/java/io/getstream/webrtc/flutter/audio/AudioUtils.java

@@ -231,10 +231,14 @@ static public String getAudioGroupId(AudioDeviceInfo device) {
             if (device.getType() == AudioDeviceInfo.TYPE_BUILTIN_MIC) {
                 groupId = "microphone";
             }
-            if (device.getType() == AudioDeviceInfo.TYPE_WIRED_HEADSET) {
+            if (device.getType() == AudioDeviceInfo.TYPE_WIRED_HEADSET
+            || device.getType() == AudioDeviceInfo.TYPE_USB_HEADSET
+            || device.getType() == AudioDeviceInfo.TYPE_WIRED_HEADPHONES) {
                 groupId = "wired-headset";
             }
-            if (device.getType() == AudioDeviceInfo.TYPE_BLUETOOTH_SCO) {
+            if (device.getType() == AudioDeviceInfo.TYPE_BLUETOOTH_SCO
+            || device.getType() == AudioDeviceInfo.TYPE_BLUETOOTH_A2DP
+            || device.getType() == AudioDeviceInfo.TYPE_BLE_SPEAKER) {
                 groupId = "bluetooth";
             }
             return groupId;

common/darwin/Classes/FlutterRTCMediaStream.h

@@ -22,4 +22,6 @@
 - (void)selectAudioInput:(nonnull NSString*)deviceId result:(nullable FlutterResult)result;
 
 - (void)selectAudioOutput:(nonnull NSString*)deviceId result:(nullable FlutterResult)result;
+
+- (void)triggeriOSAudioRouteSelectionUI:(nonnull FlutterResult)result;
 @end

common/darwin/Classes/FlutterRTCMediaStream.m

@@ -7,6 +7,7 @@
 #import "VideoProcessingAdapter.h"
 #import "LocalVideoTrack.h"
 #import "LocalAudioTrack.h"
+#import "AVKit/AVKit.h"
 
 @implementation RTCMediaStreamTrack (Flutter)
 
@@ -874,6 +875,60 @@ - (void)selectAudioOutput:(NSString*)deviceId result:(FlutterResult)result {
                              details:nil]);
 }
 
+- (void)triggeriOSAudioRouteSelectionUI:(FlutterResult)result {
+#if TARGET_OS_IPHONE
+    if (@available(iOS 11.0, *)) {
+        AVRoutePickerView *routePicker = [[AVRoutePickerView alloc] init];
+        routePicker.frame = CGRectMake(0, 0, 44, 44);
+
+        // Add the route picker to a temporary window to ensure it's in the view hierarchy
+        UIWindow *window = [[UIApplication sharedApplication] keyWindow];
+        if (!window) {
+            // Fallback for iOS 13+ where keyWindow is deprecated
+            for (UIWindowScene *windowScene in [UIApplication sharedApplication].connectedScenes) {
+                if (windowScene.activationState == UISceneActivationStateForegroundActive) {
+                    window = windowScene.windows.firstObject;
+                    break;
+                }
+            }
+        }
+
+        if (window) {
+            [window addSubview:routePicker];
+
+            // Trigger the route picker programmatically
+            for (UIView *view in routePicker.subviews) {
+                if ([view isKindOfClass:[UIButton class]]) {
+                    UIButton *button = (UIButton *)view;
+                    [button sendActionsForControlEvents:UIControlEventTouchUpInside];
+                    break; // Only trigger the first button found
+                }
+            }
+
+            // Remove the route picker after a short delay
+            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+                [routePicker removeFromSuperview];
+            });
+
+            result(nil);
+        } else {
+            result([FlutterError errorWithCode:@"NoWindowError"
+                                       message:@"Could not find a window to present the route picker"
+                                       details:nil]);
+        }
+    } else {
+        result([FlutterError errorWithCode:@"UnsupportedVersionError"
+                                   message:@"AVRoutePickerView is only available on iOS 11.0 or later"
+                                   details:nil]);
+    }
+#else
+    // macOS doesn't support iOS audio route selection UI
+    result([FlutterError errorWithCode:@"UnsupportedPlatformError"
+                               message:@"triggeriOSAudioRouteSelectionUI is only supported on iOS"
+                               details:nil]);
+#endif
+}
+
 - (void)mediaStreamTrackRelease:(RTCMediaStream*)mediaStream track:(RTCMediaStreamTrack*)track {
   // what's different to mediaStreamTrackStop? only call mediaStream explicitly?
   if (mediaStream && track) {

common/darwin/Classes/FlutterWebRTCPlugin.m

@@ -20,6 +20,7 @@
 #import <AVFoundation/AVFoundation.h>
 #import <WebRTC/RTCFieldTrials.h>
 #import <WebRTC/WebRTC.h>
+#import <AVKit/AVKit.h>
 
 #import "LocalTrack.h"
 #import "LocalAudioTrack.h"
@@ -357,6 +358,8 @@ - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {
     NSDictionary* argsMap = call.arguments;
     NSString* deviceId = argsMap[@"deviceId"];
     [self selectAudioOutput:deviceId result:result];
+  } else if ([@"triggeriOSAudioRouteSelectionUI" isEqualToString:call.method]) {
+    [self triggeriOSAudioRouteSelectionUI:result];
   } else if ([@"mediaStreamGetTracks" isEqualToString:call.method]) {
     NSDictionary* argsMap = call.arguments;
     NSString* streamId = argsMap[@"streamId"];

lib/src/helper.dart

@@ -191,4 +191,15 @@ class Helper {
           'enableIOSMultitaskingCameraAccess is only supported for iOS');
     }
   }
+
+  static Future<void> triggeriOSAudioRouteSelectionUI() async {
+    if (WebRTC.platformIsIOS) {
+      return await WebRTC.invokeMethod(
+        'triggeriOSAudioRouteSelectionUI',
+      );
+    } else {
+      throw Exception(
+          'triggeriOSAudioRouteSelectionUI is only supported for iOS');
+    }
+  }
 }