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Chat SDKs iOS v4
Chat SDKs iOS
Chat SDKs
Version 4

When a user is online, all data associated with the group channels they are a member of are automatically updated. However, when a user is disconnected from the Sendbird server and reconnects later, the refresh(completionHandler:) method should be called to update the channels with the latest information.

Note: If you want to provide the updated channels with the latest information when your user's app is in the foreground, call refresh(completionHandler:) in the didSucceedReconnection() method which receives a callback from the Sendbird server when successfully reconnected.