I'm trying to setup a PIN login page to my app that looks and functions similar to the PIN page on the phone itself when locked. However, I can't seem to find a way to detect when they press the backspace key when one of the input boxes is empty. It doesn't seem that any of the events on the UITextField get fired when it is pressed.
Alternate solution I have in my mind: 1) Create an invisible button on backspace button on keyboard
any other solution ... Please help its urgent