diff --git a/README.md b/README.md
index 9805898..2aee2ef 100644
--- a/README.md
+++ b/README.md
@@ -28,29 +28,68 @@ A flutter IM plugin for android and ios.
 
 ```
 // Initialize SDK
-OpenIM.iMManager
-  ..initSDK(
-    platform: IMPlatform.ios,
-    ipApi: 'Api interface address',
-    ipWs: 'WebSocket address',
-    dbPath: 'Database directory',
-    listener: InitSDKListener(),
-  )
-
-  // Add message listener (remove when not in use)
-  ..messageManager.addAdvancedMsgListener(AdvancedMsgListener())
-
-  // Set up message sending progress listener
-  ..messageManager.setMsgSendProgressListener(MsgSendProgressListener())
-
-  // Set up friend relationship listener
-  ..friendshipManager.setFriendshipListener(FriendshipListener())
-
-  // Set up conversation listener
-  ..conversationManager.setConversationListener(ConversationListener())
+   OpenIM.iMManager
+      ..initSDK(
+        platform: IMPlatform.ios,
+    	ipApi: 'Api interface address',
+        ipWs: 'WebSocket address',
+        dbPath: 'Database directory',
+        listener: OnInitSDKListener(
+          connecting: () {},
+          connectFailed: (code, error) {},
+          connectSuccess: () {},
+          kickedOffline: () {},
+          userSigExpired: () {},
+          selfInfoUpdated: (user) {},
+        ),
+      )
 
-  // Set up group listener
-  ..groupManager.setGroupListener(GroupListener());
+      // Add message listener (remove when not in use)
+      ..messageManager.addAdvancedMsgListener(OnAdvancedMsgListener(
+        recvMessageRevoked: (id) {},
+        recvC2CReadReceipt: (list) {},
+        recvNewMessage: (msg) {},
+      ))
+
+      // Set up message sending progress listener
+      ..messageManager.setMsgSendProgressListener(OnMsgSendProgressListener(
+        progressCallback: (id, progress) {},
+      ))
+
+      // Set up friend relationship listener
+      ..friendshipManager.setFriendshipListener(OnFriendshipListener(
+        blackListAdd: (u) {},
+        blackListDeleted: (u) {},
+        friendApplicationListAccept: (u) {},
+        friendApplicationListAdded: (u) {},
+        friendApplicationListDeleted: (u) {},
+        friendApplicationListReject: (u) {},
+        friendInfoChanged: (u) {},
+        friendListAdded: (u) {},
+        friendListDeleted: (u) {},
+      ))
+
+      // Set up conversation listener
+      ..conversationManager.setConversationListener(OnConversationListener(
+        conversationChanged: (list) {},
+        newConversation: (list) {},
+        totalUnreadMsgCountChanged: (count) {},
+        syncServerFailed: () {},
+        syncServerFinish: () {},
+        syncServerStart: () {},
+      ))
+
+      // Set up group listener
+      ..groupManager.setGroupListener(OnGroupListener(
+        applicationProcessed: (groupId, opUser, agreeOrReject, opReason) {},
+        groupCreated: (groupId) {},
+        groupInfoChanged: (groupId, info) {},
+        memberEnter: (groupId, list) {},
+        memberInvited: (groupId, opUser, list) {},
+        memberKicked: (groupId, opUser, list) {},
+        memberLeave: (groupId, info) {},
+        receiveJoinApplication: (groupId, info, opReason) {},
+      ));
 ```
 
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