Dismiss keyboard with swipe gesture (as in Message app)

Question

When the keyboard is showing on the iPhone's Messages app, if the user begins a swipe down from the messages tableview and continues into the keyboard area, the keyboard will begin to dismiss. If they move their finger up and down during this process, the keyboard moves with it.

Are Apple doing this with private APIs, or is there a way to control the keyboard like this from (I presume) a gesture recognizer?

Answer 1

I created a UIView category that provides the desired functionality:

https://github.com/danielamitay/DAKeyboardControl

Edit: It has indeed been used on the app store.

Answer 2

The simplest solution is to set the following two properties:

• UIViewController : UIResponder inputAccessoryView
• UITableView : UIScrollView keyboardDismissMode

Boom, baby!

Check out Acani Chats iPhone Client ChatViewController.swift for an example.