UITextField's keyboard won't dismiss. No, really

Question

I have a table view in a modal form sheet (iPad), and one of the cells contains a UITextField. My view controller holds a reference to the text field and is also its delegate.

When the text field hits Return, I tell it to -resignFirstResponder inside of -textFieldShouldReturn:. In another case, I want to force it to end editing, so I tell the whole table view to -endEditing:YES. Afterwards I release my local reference to the text field, and reload the row to replace it with something else.

The keyboard won't go away in either case. I don't know what's wrong, and I'm not sure how to debug further. I've never had a sticky keyboard problem with any other text editing I've done-- the firstResponder resignation has always behaved as expected.

Any thoughts? Thanks.

Answer 1

The Apple docs describe this exception:

On the iPad, if a view controller modally presents its view using the "form sheet" style, the keyboard, once shown, is not hidden until the user taps the dismiss key or the modal view controller is programmatically dismissed. The purpose of this behavior is to avoid excessive animations as a user moves between views that are largely, but not entirely, text fields.

Which happens to apply here (modal form sheet on iPad). It's apparently just not possible to dismiss the keyboard in this case. Super. :\