Update UI from another Class Method - Cocoa

Question

I would like to update the UI in my application from the AppDelegate, but whenever I call it as so:

Controller *object = [[Controller alloc] init];
[object          


        

Answer 1

When you write [[Controller alloc] init], you are not accessing the Controller object that is in your nib. You are creating a new Controller object that is unconnected to anything else in your application.

Remember, every Controller object is not the same any more than every NSArray is the same. Just because you made one Controller in your nib that's connected to an NSTextField does not mean some random Controller that you just created shares that controller's connections.

What you need to do is give the delegate a reference to the Controller that's in the nib.