Listen to a value change of my text field

Question

I\'m trying to understand how to catch a \"text changed\" event from a text field in my window. I\'m used to Java\'s \"action listeners\", and can\'t find anything similar i

Answer 1

You can use textFieldShouldBeginEditing: method of UITextFieldDelegate. In iOS listeners are called NSNotifications

EDIT

In objective-c a lot of UIObjects have a corresponding protocol class that's called "delegate" The delegate is responsible for reacting to events. So to be able to respond or to be notified about actions you need to implement the delegate and its methods.