keyboard取り戻す dismissViewController

textField delegate --- View Controller

- (BOOL)textFieldShouldReturn:(UITextField *)theTextField {

    

    if (theTextField == self.textField) {

        [theTextField resignFirstResponder];

    }

    return YES;

}


- (IBAction)cancel:(id)sender {

    [self dismissViewControllerAnimated:YES completion:nil];

}