Adding UITextField input to NSMutableArray

Question

I'm trying to add UITextField input into an NSMutableArray using the following IBActions, connected to the 'did end editing' part of the UITextFields:

- (IBAction) returnKey1
{
    [textInputOne addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
    [textInputOne resignFirstResponder];
    [players addObject:textInputOne.text];
}

- (IBAction) returnKey2
{
    [textInputTwo addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
    [textInputTwo resignFirstResponder];
    [players addObject:textInputTwo.text];
NSLog(@"array: %@",players);
}

and I've initialized the players array in the viewDidLoad section like so:

- (void)viewDidLoad
{
    [super viewDidLoad];
    players = [[NSMutableArray alloc] init];
}

but the array remains 'nil'. Anyone know how to fix this?

@Josh Caswell I've looked at all of those and none of them solve my problem. — Louis Holley, Mar 05 '13 at 19:02
Please edit your question to include the things you've tried to solve your problem, then. — jscs, Mar 05 '13 at 19:03
@JoshCaswell surely you can help me out with what's wrong with the above code regardless of what I've tried to get there. — Louis Holley, Mar 05 '13 at 19:09
I already did. There's not enough info in what you've posted to give any other answer. — jscs, Mar 05 '13 at 19:12
I've initialized players in the viewDidLoad section of the ViewController. Is that the correct place to do it? — Louis Holley, Mar 05 '13 at 19:13
OK, so, just like you have that NSLog of the array, in each of these three methods, add this line: `NSLog(@"self is %@ in %s", self, __PRETTY_FUNCTION__);`. Then post the log output here. I have a feeling that will tell us what we need to know. (Could be wrong, but it seems somewhat likely.) — Chuck, Mar 05 '13 at 22:58

rob mayoff · Accepted Answer · 2013-03-05T19:33:30.700

UITextField doesn't send any actions when the user taps Return. So you won't receive the “did end editing” action when the user taps Return.

UITextField sends “did end editing” when it resigns first responder. You can make it resign first responder when the user taps Return by setting the text field's delegate and implementing textFieldShouldReturn:. Start by finding the class extension at the top of your ViewController.m. Edit it (or add it if it's not there) to declare that the class conforms to UITextFieldDelegate:

@interface ViewController () <UITextFieldDelegate>

@property (nonatomic, strong) IBOutlet UITextField *textFieldOne;
@property (nonatomic, strong) IBOutlet UITextField *textFieldTwo;

@end

Next, implement textFieldShouldReturn: in the class to make the text field resign first responder:

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return NO;
}

Finally, in your xib, connect each text field's delegate outlet to the view controller (which is normally File's Owner).

Thanks a lot for your help, included all those things, still doesn't seem to be functioning correctly though — Louis Holley, Mar 05 '13 at 22:02

score 1 · Answer 2 · answered Mar 06 '13 at 05:18

I hope you have set the delegates to textfield properly. As you have allocated the players array in viewDidLoad try with following code

- (IBAction) returnKey1
{
    [players addObject:textInputOne.text];
}

- (IBAction) returnKey2
{
    [players addObject:textInputTwo.text];
}

Both returnKey1 & returnKey2 IBActions assigned to textfield did end editing events. Now to resign the key board

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

I tried the same thing in one sample project it worked well.

Adding UITextField input to NSMutableArray

2 Answers2