How can I get a textDidChange (like for a UISearchBar) method for a UITextField?

Question

How can I get a textDidChange method for a UITextField? I need to call a method every time a change is made to a text field. Is this possible? Thanks!

Answer 1

Swift Solution

func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
    let newString = (textField.text as NSString).stringByReplacingCharactersInRange(range, withString: string)
    return true
}