iPhone: Possible to dismiss keyboard with UITextField clear button?

Question

I'm wondering if there is a way to have the UITextField clear button 'always visible'

textfield.clearButtonMode = UITextFieldViewModeAlways;

doesn't seem to work .. and if it is possible to dismiss the keyboard using the button?

Thanks in advance.

Answer 1

In your delegate, the function

- (BOOL)textFieldShouldClear:(UITextField *)textField

is called when the users wants to clear the textfield. If you return YES and call

[textField resignFirstResponder];

the keyboard should go away. I don't know about the clearButtonMode, other than that you may want to set it early, preferably before adding the view to its superview.

edit To make sure you really resign the responder, try doing it just a little later:

[textField performSelector:@selector(resignFirstResponder) afterDelay:0.1];

Answer 2

UITextFieldDelegate textFieldShouldClear

- (BOOL)textFieldShouldClear:(UITextField *)textField {
  [textField] resignFirstResponder];
  return YES;

http://developer.apple.com/iphone/library/documentation/uikit/reference/UITextFieldDelegate_Protocol/UITextFieldDelegate/UITextFieldDelegate.html#//apple_ref/occ/intfm/UITextFieldDelegate/textFieldShouldClear: