Calling method in current view controller from App Delegate in iOS

Question

I have two view controllers (BuildingsViewController and RoomsViewController) that both use a function within the App Delegate called upload. The upload function basically d

Answer 1

Worse comes to worst, you can have both view controllers adhere to a simple one method protocol that will remove that button and refresh the view. Then in your connectionDidFinishLoading method, since you know your view controller must adhere to that protocol, by your design, you simply do something like

ViewController curView = (Get the current view controller somehow);
[curview refreshView];