How can I interact with "iPad keyboard hiding button" programmatically?

Question

There is a button at bottom right of iPad keyboard which is to hide the keypad.

How can I interact with it programmatically? (get the button then send UIControlEventTouchUpInside to it).

Does anyone know this?

[Edit] In my case, the keyboard is shown on a modal view.

Answer 1

Overriding disablesAutomaticKeyboardDismissal to return NO as below allows you to dismiss the keyboard when you resignFirstResponder, even when your UITextView is on a modal view. You should put this code to your view controller, from which you initiate the keyboard:

- (BOOL)disablesAutomaticKeyboardDismissal {
    return NO;
}

Source: https://stackoverflow.com/a/6268520

Answer 2

In general, you would send the resignFirsResponder message to the active input view.