How to add objects to IBOutletCollection?

Question

I declared NSArray in my class

NSArray             *labelsArray;

I made it a property

@property (nonatomic,retain) IBOutletCollection(UILabel) NSArray *labelsArray;

I connected it to four UILabels in IB. I allocated the array. When i do this

NSLog(@"labelsArray.count %i",[labelsArray count]);

It tells me that labelsArray's count is 0. What should i do to actually add those labels to the array?

"I allocated the array" - what do you mean by this? – jrturton Nov 30 '11 at 13:09 — jrturton, Nov 30 '11 at 13:09
i mean i did labelsArray = [[NSArray alloc] init] – Andrey Chernukha Nov 30 '11 at 13:26 — Andrey Chernukha, Nov 30 '11 at 13:26

score 3 · Accepted Answer · edited Jul 16 '12 at 09:48

3

I allocated the array.

It could be that the array is automatically instantiated for you when the NIB file is loaded and that reallocating it creates a new (empty) version of the array. Try not allocating it. Also make sure you NSLog the array in viewDidLoad, when the IB elements are loaded.

edited Jul 16 '12 at 09:48

answered Nov 30 '11 at 13:19

jbat100

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yep, without allocating the array's count is 4. Thank you very much once again – Andrey Chernukha Nov 30 '11 at 13:28
just one more question: should i release the array in dealloc or it's not necessary? – Andrey Chernukha Nov 30 '11 at 13:34
you should set it to nil via the accessor (self.labelsArray = nil;) in viewDidUnload and release it in dealloc. – jbat100 Nov 30 '11 at 13:38
are you sure? if i release the array my app crashes. if i don't it works all right – Andrey Chernukha Nov 30 '11 at 15:24
apparently you should set them to nil in dealloc also. – jbat100 Nov 30 '11 at 15:37
and another ... http://stackoverflow.com/questions/1682080/settings-iboutlets-to-nil-in-dealloc – jbat100 Nov 30 '11 at 15:38

score 1 · Answer 2 · answered Nov 30 '11 at 13:02

1

Where are you calling the NSLog statement? The array will not be instantiated until viewDidLoad is called.

answered Nov 30 '11 at 13:02

Rayfleck

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How to add objects to IBOutletCollection?

2 Answers2