feat(video_calls): ios mic fix

ios/Runner/AppDelegate.swift

@@ -1036,6 +1036,9 @@ import flutter_foreground_task
       finish()
     }
 
+    if !endAfterReport {
+      prepareCallAudioCategory()
+    }
     if let plugin = SwiftFlutterCallkitIncomingPlugin.sharedInstance {
       plugin.showCallkitIncoming(data, fromPushKit: true, completion: afterReport)
       return
@@ -1053,6 +1056,9 @@ import flutter_foreground_task
       finish()
       return
     }
+    if !endAfterReport {
+      prepareCallAudioCategory()
+    }
     voipCallReporter.report(
       uuid: uuid,
       callerName: data.nameCaller,
@@ -1072,6 +1078,9 @@ import flutter_foreground_task
 
   func onAccept(_ call: Call, _ action: CXAnswerCallAction) {
     resumeAudioAfterCallKitEnds = true
+    // Dart may call activate before didActivate. Claim the session now so
+    // that path does not setActive or start the audio unit without a track.
+    callKitOwnsAudioSession = true
     prepareCallAudioCategory()
     storePendingAcceptedCall(call)
     recordVoipDiagnostic(
@@ -1114,9 +1123,10 @@ import flutter_foreground_task
     rtcSession.useManualAudio = true
     rtcSession.audioSessionDidActivate(audioSession)
     applyCallAudioConfiguration(active: false)
-    // Do not start the audio unit here. Incoming accept has no LiveKit
-    // microphone track yet; enabling the unit attaches capture to nothing,
-    // and a later `isAudioEnabled = true` is then a no-op.
+    // Incoming accept has no LiveKit microphone track yet. Starting the
+    // unit here attaches capture to nothing; a later isAudioEnabled=true
+    // is a no-op and the callee microphone stays silent. Dart starts the
+    // unit via restart after setMicrophoneEnabled.
   }
 
   func didDeactivateAudioSession(_ audioSession: AVAudioSession) {
@@ -1145,6 +1155,16 @@ import flutter_foreground_task
   }
 
   private func prepareCallAudioCategory() {
+    let session = AVAudioSession.sharedInstance()
+    do {
+      try session.setCategory(
+        .playAndRecord,
+        mode: .videoChat,
+        options: [.allowBluetooth, .defaultToSpeaker]
+      )
+    } catch {
+      NSLog("[EatvioVoIP] prepare call audio category failed: \(error)")
+    }
     applyCallAudioConfiguration(active: false)
   }
 
@@ -1154,23 +1174,37 @@ import flutter_foreground_task
     // CallKit already activated the session on answer. A second setActive
     // fails or replaces that session, and the incoming microphone stays dead.
     applyCallAudioConfiguration(active: !callKitOwnsAudioSession)
-    // Starting the audio unit while the configuration lock is held deadlocks
-    // the capture thread, so the mic stays silent.
+    if callKitOwnsAudioSession {
+      // The unit starts in restartInAppCallAudioUnit after the microphone
+      // track exists. Enabling it here is the incoming-only silent-mic bug.
+      return
+    }
     rtcSession.isAudioEnabled = true
   }
 
-  /// Restarts capture after the previous audio graph has disconnected.
-  /// Toggling the unit in the same turn makes voice processing throw.
+  /// Starts capture after the microphone track exists. Incoming CallKit
+  /// must not have started the unit earlier, or this assignment is a no-op.
   private func restartInAppCallAudioUnit() {
     audioRestartGeneration += 1
     let generation = audioRestartGeneration
     let rtcSession = RTCAudioSession.sharedInstance()
     rtcSession.useManualAudio = true
-    rtcSession.isAudioEnabled = false
-    DispatchQueue.main.asyncAfter(deadline: .now() + 0.25) { [weak self] in
-      guard let self, generation == self.audioRestartGeneration else { return }
-      self.activateInAppCallAudioSession()
+    let needsTeardown = rtcSession.isAudioEnabled
+    if needsTeardown {
+      rtcSession.isAudioEnabled = false
     }
+    let delay: TimeInterval = needsTeardown ? 0.25 : 0
+    DispatchQueue.main.asyncAfter(deadline: .now() + delay) { [weak self] in
+      guard let self, generation == self.audioRestartGeneration else { return }
+      self.enableInAppCallAudioUnit()
+    }
+  }
+
+  private func enableInAppCallAudioUnit() {
+    let rtcSession = RTCAudioSession.sharedInstance()
+    rtcSession.useManualAudio = true
+    applyCallAudioConfiguration(active: !callKitOwnsAudioSession)
+    rtcSession.isAudioEnabled = true
   }
 
   private func applyCallAudioConfiguration(active: Bool) {

pubspec.yaml

@@ -1,6 +1,6 @@
 name: eatvio_app
 description: A new Flutter project.
-version: 1.3.61+150
+version: 1.3.62+151
 publish_to: 'none'
 
 environment: