Handling events

You can listen for different events that occur in the SDK API and UI.

Before you start

Before you start, the following information is useful to know:

  • You can hook onto lifecycle events called during the normal operation of UI and API calls.
  • You can then use this information to perform other actions in your app. For example, if you know that a support request has been created, you may want to suppress marketing activity.

Listening for events

The Support SDK broadcasts state changes using NSNotificationCenter. To subscribe to an event, add an observer to NSNotificationCenter.


NotificationCenter.default.addObserver(self, selector: #selector(submitRequestCompleted), name: NSNotification.Name(rawValue: ZDKAPI_RequestSubmissionSuccess), object: nil)


[[NSNotificationCenter defaultCenter] addObserver:self                                         selector:@selector(submitRequestCompleted:)                                             name:ZDKAPI_RequestSubmissionSuccess                                           object:nil];

For more information, see NSNotificationCenter in the Apple developer docs.

Available events

A full list of events is available in the ZendeskSDKConstants.h file in the SDK. The file is located in the ZendeskProviderSDK.framework/Headers folder after installing the SDK. The file is also available in the following GitHub repo (the version number may vary):


Event names have the following format:


Example from ZendeskSDKConstants.h:

/** * Notification that a request has been successfully submitted. */extern NSString * const ZDKAPI_RequestSubmissionSuccess;

The events in the following sections are only a subset of all available events.

Request submission events

The SDK lets you track the progress of support requests submitted by users.

Event name Description
ZDKAPI_RequestSubmissionStarting A request is about to be submitted
ZDKAPI_RequestSubmissionSuccess A request has been successfully submitted
ZDKAPI_RequestSubmissionError There was an error during request submission

Request events

You can attach a listener to ViewRequest and be notified of the following events.

Event name Description
ZDKAPI_CommentListStarting The comment list is about to be retrieved
ZDKAPI_CommentListSuccess The comment list has been retrieved
ZDKAPI_CommentListError There was an error while retrieving the comment list
ZDKAPI_CommentSubmissionStarting A comment is about to be submitted
ZDKAPI_CommentSubmissionSuccess A comment has been successfully submitted
ZDKAPI_CommentSubmissionError There was an error during comment submission

Request list events

You can attach observers to RequestList and be notified of the following events.

Event name Description
ZDKAPI_RequestsStarting The request list is about to be retrieved
ZDKAPI_RequestsSuccess The request list was successfully retrieved
ZDKAPI_RequestsError There was an error while retrieving the request list