Chat SDKs Flutter v4
Chat SDKs Flutter
Chat SDKs
Flutter
Version 4
A user can update any of their own text and file messages sent using UserMessageUpdateParams and FileMessageUpdateParams. An error is returned if a user attempts to update another user's messages. In addition, channel operators can update any messages sent in a channel.
// Update a user message.
try {
final params = UserMessageUpdateParams(message: 'NEW_MESSAGE')
..customType = 'NEW_CUSTOM_TYPE'
..data = 'NEW_DATA';
final message = await channel.updateUserMessage(USER_MESSAGE_ID, params);
// The message is successfully updated.
// You can check if the update operation has been performed correctly.
} catch (e) {
// Handle error.
}
// Update a file message.
try {
final params = FileMessageUpdateParams()
..customType = 'NEW_CUSTOM_TYPE';
final message = await channel.updateFileMessage(FILE_MESSAGE_ID, params);
// The message is successfully updated.
// You can check if the update operation has been performed correctly.
} catch (e) {
// Handle error.
}
If a message is updated, the onMessageUpdated() method in the channel event handler is invoked on all users' devices except the one that updated the message.
class MyOpenChannelHandler extends OpenChannelHandler {
@override
void onMessageUpdated(BaseChannel channel, BaseMessage message) {
}
}