fix #471

ios/Classes/FluwxResponseHandler.m

@@ -240,7 +240,6 @@ FlutterMethodChannel *fluwxMethodChannel = nil;
             LaunchFromWXReq *launchReq = (LaunchFromWXReq *) req;
             [_delegate managerDidRecvLaunchFromWXReq:launchReq];
         }
-    }
         LaunchFromWXReq *launchFromWXReq = (LaunchFromWXReq *) req;
         WXMediaMessage *wmm = launchFromWXReq.message;
         NSString *msg = @"";
@@ -258,5 +257,7 @@ FlutterMethodChannel *fluwxMethodChannel = nil;
         };
 
         [fluwxMethodChannel invokeMethod:@"onWXShowMessageFromWX" arguments:result];
+    }
+    
 }
 @end