Error message that UIKit should not be called from a secondary thread

Question

I have an app which uses a UISearchBar to dynamically search from an external API based on user input.

The app is searching the external API fine and d

Answer 1

I would suspect the line:

[delegate parseDidComplete];

If the delegate class is interacting with UIKit components, then the background thread that is retrieved the XML contents is then calling the front-end objects which must all be in the main thread.

You may want to look at using an NSOperation and NSOperationQueue to do the asynchronous operations. I believe that provides a more threadsafe way to handle this type of use case.