How do copy for UILabel?

Question

I have IBOutlet UILabel *label;

and I want to do this

UILabel *label = [titleLabel copy];
label.text = @\"Clone\";
titleLabel.text = @         


        

Answer 1

UILabel does not conform to NSCopying, so you cannot make a copy via -copy.

But it does conform to NSCoding, so you can archive the current instance, then unarchive a 'copy'.

NSData *archivedData = [NSKeyedArchiver archivedDataWithRootObject: label];
UILabel *labelCopy =   [NSKeyedUnarchiver unarchiveObjectWithData: archivedData];

Afterwards, you'll have to assign any additional properties that weren't carried over in the archive (e.g. the delegate) as necessary.