群解散的本地消息删除，提醒

utils/im/index.js

@@ -159,9 +159,22 @@ const addListeners = () => {
             }) => {
                 console.log('消息删除结果', code)
             })
-        } else if (message.objectName === RongIMLib.ObjectName.ContactNotification) {
+        } else if (message.objectName === RongIMLib.ObjectName.ContactNotification) {
             // 触发一个新好友的通知事件
             uni.$emit('onContactNotification', message)
+        } else if (message.objectName === RongIMLib.ObjectName.GroupNotification) {
+            // 解散群
+            if (message.content.operation === 'Dismiss') {
+                RongIMLib.cleanHistoryMessages(message.conversationType, message.targetId,
+                    message.sentTime - 1, false, ({
+                        code
+                    }) => {
+                        if (code == 0) {
+                            uni.$emit('onGroupDismiss', message.targetId)
+                        }
+                    })
+            }
+            uni.$emit('onReceiveMessage', message)
         }
     })