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IBOutlet does not display its value in UI


IBOutlet does not display its value in UI

By : user2952887
Date : November 19 2020, 03:59 PM
With these it helps You shouldn't use a custom segue to return to your first view controller. Segues always create a new instance of a view controller (unless you use an unwind segue). In your first view controller, add this method:
code :
- (IBAction)backFromMapView:(UIStoryboardSegue *)segue
{
    NSLog(@"and we are back");
    MapViewController* mvc = (MapViewController *)segue.sourceViewController;
    NSLog(@"location %@", mvc.addressLabel.text);
}


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When is an IBOutlet UIViewController inited, if set as a property? How to optimize IBOutlet UIViewControllers' loading?

When is an IBOutlet UIViewController inited, if set as a property? How to optimize IBOutlet UIViewControllers' loading?


By : user2333309
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , The UIViewController doesn’t initialize the outlets, that’s done by the nib loading code before awakeFromNib and viewDidLoad. Anything that is in one nib file gets loaded, instantiated and intialized at the same time. So as long as your views are in the same nib there is no way to load them on demand. You should put the other views in different nib files and load them when they are needed. Putting everything in one nib is not a good idea.
Releasing iVar IBOutlet vs Property IBOutlet

Releasing iVar IBOutlet vs Property IBOutlet


By : markjane
Date : March 29 2020, 07:55 AM
Hope that helps If you connect these three items via Interface Builder you DO need to release them. Outlets are retained by default. KVC (Key Value Coding) is used to set outlets. This means that loadFromNib will call setValue:withKey for each outlet you have set. This uses the @property and it's setter method, but if none are set (as is your case) it retains the object by default.
UILabel not updating even though it is connected to IBOutlet and IBOutlet has correct value

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


By : Soumo777
Date : March 29 2020, 07:55 AM
it fixes the issue 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!
What is the difference between an IBOutlet and an IBOutlet property?

What is the difference between an IBOutlet and an IBOutlet property?


By : T Devr
Date : March 29 2020, 07:55 AM
I wish did fix the issue. There is no such thing as a "regular IBOutlet". IBOutlet is just an internal keyword giving Xcode a hint that it should allow the making of an outlet by this name in Interface Builder. What you're describing really has nothing to do with the IBOutlet keyword at all. It's just the ordinary difference between an instance variable declaration and a property declaration.
Dynamic IBOutlet to display Image

Dynamic IBOutlet to display Image


By : tirbycat
Date : March 29 2020, 07:55 AM
This might help you There's some things in your code - particularly @IBOutlet = currentArt() that makes it hard to understand how you think the code will work. So let's try starting at a high level.
You need a UIImageView (we'll call it nowPlayingArtBackground) that will display a piece of artwork (say, the output of a function called currentArt). SO far, so good with what you have. Using @IBOutlet suggests you're setting this all up in a Storyboard - good.
code :
nowPlayingArtBackground.image = currentArt()
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