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DocumentationChatNo UI IntegrationMessageModifying MessageFlutter
Flutter
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Last updated: 2024-01-31 16:13:25
Flutter
Last updated: 2024-01-31 16:13:25
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Overview

This feature enables any member in a conversation to modify a successfully sent message in the conversation. The message will be synced to all the members in the conversation once modified successfully.
Note:
This feature is supported only by the SDK for Flutter on v4.0.0 or later.

Modifying a Message

A conversation participant can call the modifyMessage API (details) to modify a sent message in the conversation. The Chat SDK allows any conversation participant to modify a message in the conversation. You can add more restrictions at the business layer, for example, only allowing the message sender to modify the message.
Currently, the following information of a message can be modified:
localCustomData (details)
localCustomInt (details)
cloudCustomData (details)
V2TIMTextElem (details)
V2TIMCustomElem (details)
Sample code:
// Find the message to be modified
V2TimValueCallback<List<V2TimMessage>> msgListRes = await TencentImSDKPlugin.v2TIMManager.getMessageManager().findMessages(messageIDList: ['msgid']);
// Edit the message
  if(msgListRes.code == 0){
    List<V2TimMessage> messageList = msgListRes.data;
    if(messageList.isNotEmpty){
      V2TimMessage originMessage = messageList[0];
      originMessage.cloudCustomData = "change data";
     V2TimValueCallback<V2TimMessageChangeInfo> modify = await TencentImSDKPlugin.v2TIMManager.getMessageManager().modifyMessage(message: originMessage);
     if(modify.code == 0){
       if(modify.data.code ==0){
         // Modified successfully
       }
     }
    }
  }

Listening for a Message Modification Callback

Conversation participants call addAdvancedMsgListener (details) to add the advanced message listener.
After a message in the conversation is modified, all the participants will receive the onRecvMessageModified callback (details), which contains the modified message object.
Sample code:
onRecvMessageModified: (V2TimMessage message) {
      // `msg` is the modified message object
},
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