Question

When I use this code:

- (void)viewDidLoad
{
    [super viewDidLoad];
    CGFloat mainViewWidth = self.view.bounds.size.width;
    NSLog(@"%f", mainViewWidth);
}

I got the result in simulator:480

and when i start the app on my iPhone 4 i got the result 320?

Did I do something wrong?

Answer 1

Do the same in viewWillAppear.

-(void)viewWillAppear:(BOOL)animated{
    CGFloat mainViewWidth = self.view.bounds.size.width;
    NSLog(@"%f", mainViewWidth);
}

and see if you are getting correct values.. ViewDidLoad gets called before view is drawn completely. Accessing UIView size property gives you unpredictable values there.