# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2019-09-08 06:52:38 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1170590751316725762) RT @chockenberry: Are you doing this in viewDidLoad on iOS 13? presentationController?.delegate = self (to track things like presentation…