textFieldDidBeginEditing: not getting called

Question

I got the code below from this SO question. I'm trying to slide up textfields when I begin editing (because they otherwise get covered by the iPhone keyboard). However, the log statement reveals that the textFieldDidBeginEditing method is not getting called.

I have the code below in two different subclasses of UIViewController. In one of them, for example, I have a textfield connected from the storyboard to the UIViewController like this

@property (strong, nonatomic) IBOutlet UITextField *mnemonicField;

I moved the textfield up to the top of the view (i.e. not covered by keyboard) so that I could edit it to try to trigger the log statement but it didn't work. The text field otherwise works as expected i.e. the data I enter is getting saved to coreData etc etc.

Can you explain what I might be doing wrong?

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    NSLog(@"The did begin edit method was called");
    [self animateTextField: textField up: YES];
}


- (void)textFieldDidEndEditing:(UITextField *)textField
{
    [self animateTextField: textField up: NO];
}

- (void) animateTextField: (UITextField*) textField up: (BOOL) up
{
    const int movementDistance = 180; // tweak as needed
    const float movementDuration = 0.3f; // tweak as needed

    int movement = (up ? -movementDistance : movementDistance);

    [UIView beginAnimations: @"anim" context: nil];
    [UIView setAnimationBeginsFromCurrentState: YES];
    [UIView setAnimationDuration: movementDuration];
    self.view.frame = CGRectOffset(self.view.frame, 0, movement);
    [UIView commitAnimations];
}

Does any of the other delegate methods are called or when did you set the delegate? — Larme, May 12 '14 at 14:03
@larme I have to set a delegate for this to work? didn't know that — Leahcim, May 12 '14 at 14:03
`textFieldDidEndEditing`: is a delegate method. It's a `UITextFieldDelegate` method, not a `UITextField` one. — Larme, May 12 '14 at 14:04
For me I had added my TextField to a UIViewController and that UIViewController's view I had added as a subview to my main VC. I needed to then go to my main VC and include the code `[self addChildViewController:myVC];` for textField delegates to start working in that VC. Amazed I haven't encountered this before — Albert Renshaw, Jul 13 '18 at 02:17

score 43 · Accepted Answer · answered May 12 '14 at 14:03

You have not assigned your delegate of UITextField in your ViewController class:

In your viewcontroller.m file, In ViewDidLoad method, do this:

self.mnemonicField.delegate=self;

In your viewcontroller.h file, do this:

@interface YourViewController : ViewController<UITextFieldDelegate>

score 4 · Answer 2 · answered May 12 '14 at 14:04

You should set up text field delegate to self. Add this line to viewDidLoad method:

self.mnemonicField.delegate = self;

and remember to add this line <UITextFieldDelegate> to conform to that protocol.

You can achieve the same effect in storyboard by control drag from desired UITextField to view controller and select delegate.

score 4 · Answer 3 · answered May 12 '14 at 14:07

4

You created IBOutlet so just drag your textfield to viewController and set delegate

enter image description here Then in .h add the following

@interface ViewController : ViewController<UITextFieldDelegate>

answered May 12 '14 at 14:07

Yohan

1,108
9
21

score 1 · Answer 4 · answered May 14 '15 at 19:26

1

In other case if you click any other button without moving the focus of Uitextfield then delegate will not be called, for that you need to explicitly call

yourtextfield.resignFirstResponder()

answered May 14 '15 at 19:26

Pramod

1,123
2
12
33

textFieldDidBeginEditing: not getting called

4 Answers4

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