Modal Dialog Does Not Dismiss Keyboard

Question

I am running into an issue where the keyboard does not get dismissed when leaving a UITextField or UITextView in a UIModalPresentationFormSheet. In addition, I've created a large button to serve as the view's background so if the user taps outside the fields it gets triggered. I am using the same code in a regular view controller, and it works as expected. In the modal view controller it does nothing. Any suggestions would be appreciated.

- (BOOL)textFieldShouldReturn:(id)sender {  
 [titleTextField resignFirstResponder];
 return YES;
}

- (BOOL)textViewShouldReturn:(id)sender {  
 [synopsisTextView resignFirstResponder];
 return YES;
}

- (IBAction)textFieldDoneEditing:(id)sender {  
 [sender resignFirstResponder];
} 

- (IBAction)textViewDoneEditing:(id)sender {  
 [sender resignFirstResponder];
} 

- (IBAction)backgroundClick:(id)sender {  
 [titleTextField resignFirstResponder];
 [synopsisTextView resignFirstResponder];
}

Answer 1

Overriding disablesAutomaticKeyboardDismissal to return NO as below fixed the same problem of mine. You should put this code to your view controller, from which you initiate the keyboard:

- (BOOL)disablesAutomaticKeyboardDismissal {
    return NO;
}

Also, check this SO question if you want to get a detailed explanation.

Answer 2

For those having trouble with UINavigationController, I think there is a better solution than a category on UIViewController. We should change the behavior of UINavigationController to ask its topViewController (in my opinion, this is how all ViewController containers should handle this).

@implementation UINavigationController (DelegateAutomaticDismissKeyboard)
- (BOOL)disablesAutomaticKeyboardDismissal {
    return [self.topViewController disablesAutomaticKeyboardDismissal];
}

Answer 3

If you're presenting a modal view with presentation style "form sheet", Apple apparently does not dismiss the keyboard, thinking that they don't want the keyboard to jump in and out where a user will be doing a lot of editing (i.e. "forms"). The fix would be to change presentation style or live with it.