Chapter 2 exercise question

Gordio · March 9th, 2012, 10:39 PM

So for exercise 2 exercise question #5

Loking at the answer, I notice this line that I didn't implement but worked anyway

"@interface ExerciseViewController: UIViewController { UILabel *textLabel;}

Mine is left alone and looks like this:
"@interface ExerciseViewController: UIViewController"
And the remainder of the code is identical. Is there any benefit creating this instance here? Thanks!

Gordio · March 9th, 2012, 10:41 PM

PS Awesome book! I read 3 books prior. First book was too easy, second book (about objective C) had WAY too many typos to the point it's garbage. Third book about SDK was awesome to familiarize myself with SDK, but doesn't teach programming.

This is the fourth book, and it seems 4th is the charm! I like how entry level this book is. I should've gotten this book first!

thepianoguy · March 10th, 2012, 08:53 AM

Variables no longer need to be declared independently of @properties. So,

Code:

@interface ExerciseViewController : UIViewController

@property (strong, nonatomic) IBOutlet UILabel *textLabel;

@end

and

Code:

@interface ExerciseViewController : UIViewController
{
    UILabel *textLabel;
}

@property (strong, nonatomic) IBOutlet UILabel *textLabel;

@end

both work. In fact the first one is more consistent with the approach Apple now uses. The second can now be considered a bit redundant.

Bob

Gordio · March 10th, 2012, 02:46 PM

Ah thanks!