Setting the Label

[Unicyclist]

Hi!

I'm pretty new to cocoa and have a small problem that I hope somebody can help with.

Basically I can't get UILabel to display my "Hello" when I do the following in my ViewDidLoad.

[oldText initWithString:@"Hello"];
    label.text = oldText;

oldText here is defined as follows

@interface DisplayViewController : UIViewController {
	UILabel *label;
	NSString *oldText;
}

@property (nonatomic, retain) IBOutlet UILabel *label;
@property (nonatomic, retain) NSString *oldText;

As a check however, the following does work so everything seems to be connected properly.

label.text = @"This Works";

I'm guessing its got to do with how I'm defining oldText or some sort of incompatible type? But I'm quite clueless otherwise.

Thanks in advance!

[finefin]

[myLabel setText:@"No! *this* should work"];

EDIT: so *this* also works:

[myLabel setText:[NSString stringWithFormat: @"%@", oldText]];

[Unicyclist]

Hi finefin!

Thanks for the reply!

That does work. Though, how do I get it to work with my instance oldText?

=)

[finefin]

see above

[Unicyclist]

Thanks finefin!

It seems to be better, the label can now be seen. Though the text defined by oldText doesn't seem to appear.

Instead I get "(null)" appearing in the label.

[finefin]

hehe funny.
at this point you could use

oldText = @"Hello";

[Unicyclist]

!!!!!!!!!!!!!!!!!

It works!!!!

And I have absolutely no idea why we can do that now!

Could you explain briefly or point me to a resource or something where i could read up on it?

This is totally messing me up... lol

[finefin]

the difference is quite simple.

UILabel is a text view, it inherits from UIView.
myLabel.text is an attribute of UILabel (besides font, textcolor, alignment...)
so if you want to set the text attribute of an UILabel, well, you use setText.

oldText is an NSString. it is just a string object. so you can set the string in that easy way.

You use initWithString when you create a new NSString object

NSString *myString = [[NSString alloc] initWithString:@"Hello"];

EDIT: for more info on the classes you use --> in xcode, mark the class name, right click and select "Find selected text in API reference", take your time and read.

[Unicyclist]

Thanks for all your help!

=)