New add fuc

example/lib/main.dart

@@ -83,9 +83,12 @@ class _MyAppState extends State<MyApp> {
         onRecvMessageRevoked: (messageID) {
           // 消息成功撤回，从界面移除消息
         },
-        onRecvC2CReadReceipt: (list) {
+        onRecvC2CMessageReadReceipt: (list) {
           // 消息被阅读回执，将消息标记为已读
         },
+        onRecvGroupMessageReadReceipt: (list){
+          // 消息被阅读回执，将消息标记为已读
+        }
       ))
       ..messageManager.setMsgSendProgressListener(OnMsgSendProgressListener(
         onProgress: (messageID, progress) {

example/pubspec.lock

@@ -68,7 +68,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.1.1"
+    version: "2.0.0+2"
   flutter_test:
     dependency: "direct dev"
     description: flutter