iPhone UILabel not updating on first load - iphone

Question

I have a UILabel that does not update on first load but does load correctly on every other subsequent load.
Here is the snippet of code. Again, as I said, on the first load only it will display what's specified in the label in the xib, i.e label, and the second time it will load the string label.text= #"Glass, Paper, Cans, Textiles, Card, Shoes and Books";.
-(IBAction)showDetails:(id)sender{
NSLog(#"Annotation Click");
self.userProfileVC.title=((UIButton*)sender).currentTitle;
if([((UIButton*)sender).currentTitle isEqualToString:#"Asda"])
self.userProfileVC.label.text= #"Glass, Paper, Cans, Textiles, Card, Shoes and Books";
[UIView beginAnimations:#"Curl Page Down" context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown
forView:self.view cache:YES];
//Adjust the Subview by butting up to status bar
self.userProfileVC.view.frame = CGRectMake(0, 0, 320, 480);
//Add userProfileVC as a subview
[self.view addSubview:userProfileVC.view];
[UIView commitAnimations];
}

Answer 1

I believe that at the time you access self.userProfileVC.label at the first time, the label is still nil because the view itself hasn't been loaded yet. The quick fix is that you must load the view first by putting self.userProfileVC.view; statement at the beginning of the showDetails method.

Answer 2

Presumably this code is called when you click your UIButton. So at first UI load I wouldn't expect your method to get called (as no button was pressed). Why don't you try setting up the default text in viewDidLoad or similar?
e.g. something along the lines of:
- (void)viewDidLoad {
self.userProfileVC.label.text= #"Glass, Paper, Cans, Textiles, Card, Shoes and Books";
}

Answer 3

I am such an idiot I have changed the order of my code....load the view first before the labels. DOH!
Heres the snippet:
-(IBAction)showDetails:(id)sender{
//Must load the view before the annotations update the label with the correct label text!
[UIView beginAnimations:#"Curl Page Down" context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown
forView:self.view cache:YES];
//Adjust the Subview by butting up to status bar
self.userProfileVC.view.frame = CGRectMake(0, 0, 320, 480);
//Add userProfileVC as a subview
[self.view addSubview:userProfileVC.view];
[UIView commitAnimations];
NSLog(#"Annotation Click");
self.userProfileVC.title=((UIButton*)sender).currentTitle;
if([((UIButton*)sender).currentTitle isEqualToString:#"Asda"])
self.userProfileVC.label.text= #"Glass, Paper, Cans, Textiles, Card, Shoes and Books";