Add or remove a user event delegate

To receive information about events related to users connected to the Sendbird server, add a user event delegate UserEventDelegate) with its unique user-defined ID.

If you want to stay informed of changes related to users and notify the changes to different client apps, define and register multiple user event delegates to each view controller.

The following code shows a full set of supported event callbacks with their parameters and how to add a user event delegate to the unique SendbirdChat instance.

Note: The totalCountByCustomType attribute is turned off by default. Contact us if you wish to use this feature.

// CustomViewController.swift
class CustomViewController: UIViewController, UserEventDelegate {
    func initViewController() {
        SendbirdChat.add(self as UserEventDelegate, identifier: UNIQUE_DELEGATE_ID)
    }

    func didUpdateTotalUnreadMessageCount(_ totalCount: Int32, totalCountByCustomType: [String : NSNumber]?) {

    }
}

The following code shows how to remove the user event delegate.

SendbirdChat.removeUserEventDelegate(forIdentifier: UNIQUE_DELEGATE_ID)