How to Call awakeFromNib in mainViewController.m

Question

I have an xib file containing a custom cell. I'm trying to access the height of an object created in customCell.m.

Here is my code:

customCell.m

- (void)awakeFromNib
{
    self.label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 50, 200)];
    [self.label setText:@"This is a label"];
    [self.myView addSubview:self.label];

    NSLog(@"%f", self.label.frame.size.height);  // Results: 200.0000
}

mainViewController.m

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    customCell *cellVC = [[cutsomCell alloc] init];

    NSLog(@"%f, %f", cellVC.label.frame.size.height); // Results: 0.0000
}

well, the cell did not awake from nib because it is not created from nib file — Bryan Chen, Feb 02 '15 at 22:51
Didn't he write that it comes from a xib file in your question? — joakim, Feb 02 '15 at 23:03
I have a custom cell in the xib file with some items inside. I then programmatically added other items to it via awakeFromNib — , Feb 02 '15 at 23:04
When I get the height of the label in mainViewController.m, it gives me a height of 0 — , Feb 02 '15 at 23:12

score 2 · Accepted Answer · answered Feb 02 '15 at 22:49

2

awakeFromNib is called when all file owners outlets and properties are set. Things are not wired up (in terms of frames/layout) in viewDidLoad.

awakeFromNib is called after viewDidLoad, that is why you see the difference.

answered Feb 02 '15 at 22:49

joakim

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Is there a way to call it in the viewDidLoad? – Feb 02 '15 at 22:55
AwakeFromNib is automatically called for you, no need to call it explicitly – joakim Feb 02 '15 at 23:01
How do I access the items in the awakeFromNib – Feb 02 '15 at 23:03
Add your views as IBOutles to the cell's file owner ( your view controller usually) – joakim Feb 02 '15 at 23:07

score 0 · Answer 2 · edited Feb 02 '15 at 23:00

0

Sorry, this doesn't work. You are creating your customCell via alloc/init in code. AwakeFromNib is only called for objects defined in a nib file.

You probably need to define your customCell in a separate nib file, and load that nib file through + (BOOL)loadNibNamed:(NSString *)aNibName owner:(id)owner or similar.

edited Feb 02 '15 at 23:00

Bryan Chen

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answered Feb 02 '15 at 22:59

iljawascoding

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I don't think I'm creating your customCell via alloc/init programmatically. The reason why I have "customCell *cellVC = [[cutsomCell alloc] init];" is because I want to do get the labels height. – Feb 02 '15 at 23:02

How to Call awakeFromNib in mainViewController.m

2 Answers2