Flutter 3.0 crash fixes (flutter-webrtc#953)

hiroshihorie · web-flow · commit 504542f509f7 · 2022-05-16T23:37:58.000+09:00
* setStreamHandler on main thread

* move to bottom
diff --git a/common/darwin/Classes/FlutterRTCPeerConnection.m b/common/darwin/Classes/FlutterRTCPeerConnection.m
@@ -504,7 +504,6 @@ - (void)peerConnection:(RTCPeerConnection*)peerConnection didOpenDataChannel:(RT
 
     dataChannel.eventChannel = eventChannel;
     dataChannel.flutterChannelId = dataChannelId;
-    [eventChannel setStreamHandler:dataChannel];
 
     FlutterEventSink eventSink = peerConnection.eventSink;
     if(eventSink){
@@ -514,6 +513,11 @@ - (void)peerConnection:(RTCPeerConnection*)peerConnection didOpenDataChannel:(RT
                     @"label": dataChannel.label
                     });
     }
+
+    dispatch_async(dispatch_get_main_queue(), ^{
+       // setStreamHandler on main thread
+       [eventChannel setStreamHandler:dataChannel];
+    });
 }
 
 /** Called any time the PeerConnectionState changes. */
