UILabel not updating even though it is connected to IBOutlet and IBOutlet has correct value - uilabel

Question

I have a TableViewCOntroller that shows a list of images and associated descriptions. I pass data to the detailed view in the prepare for segue method. THe MSMutableDrictionary Object I pass has the correct values and I can see this in the NSLog of the object in the detail views viewDidLoadMethod. THe code for this is as follows:
.h of detail view controller
#interface sitespecLargeImageDetail : UIViewController
#property (strong, nonatomic) NSMutableDictionary *details;
#property (strong, nonatomic) IBOutlet UIImage *largeImage;
#property (strong, nonatomic) IBOutlet UILabel *largeImageLabel;
#end
.m of detail view controller
#implementation sitespecLargeImageDetail
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
_largeImage = [_details valueForKey:#"pbvurl"];
_largeImageLabel = [_details valueForKey:#"pbvdesc"];
NSLog(#"%#", _largeImageLabel);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Here is the prepare for segue event in the tableviewcontoller:
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
sitespecLargeImageDetail *detailViewController = (sitespecLargeImageDetail *)segue.destinationViewController;
detailViewController.details = _dictObj;
}
Couple of strange things:
WHen I look at the detail view controller in my storyboard in the connections inspector, I can see both the label and image Outlets. I can see I ahve connected the label outlet. great, but it does not update when the view loads! I know the dict obj in the detail view gets data because I can NSLog it and see it. I use that to set the IBOutlet for the label but nothing.
In the connection inspector, I can see the UIImage outlet BUT I am unable to connect it to the UIImage VIew I placed in the detail view controller, it simply wont allow me to connect it, no error, just when I control drag from the detailview controller I dont even see it! I see the label outlet, but not the image view.......

Answer 1

Firstly, what you want to do is _largeImageLabel.text = [_details valueForKey:#"pbvdesc"];.
Without the .text what you are doing is using the UILabel pointer to point to a NSString, which clearly does not result in your expected behaviour!
As for the UIImage outlet, what you need is a UIImageView outlet! UIImage is not a view, hence it doesn't have any relation with the interface builder (you can't drag a UIImage in your storyboard, only views can compose interfaces).