ios - Search bar not calling textDidChange for some reason -

I am very new in Xcode so please excuse my ignorance.

I have a searchBar on a ViewController and a tableview I have IBOutlet for searchBar and I specified viewDidLoad in searchBar.delegate = self . For some reason when I type in the search bar, the textDidChange call is not available

Can anyone help me with it? Thank you.

I had to do this job. Even though I specified viewDidLoad in searchBar.delegate = self , this did not work until I specified the representative in the searchBar storyboard interface did not do.