The keyboard's pick up in iOS

In addition to the Resignfirstresponder method for invoking the corresponding control, there are three other ways to uiviewcontroller the keyboard in the collection:

1. Overload Uiviewcontroller in the Touchesbegin method, and then execute inside [self.view endEditing:YES]; , so click anywhere in the Uiviewcontroller, you can put up the keyboard;
2. direct execution [[uiapplication sharedapplication] sendaction: @selector (resignfirstresponder) To:nil From:nil Forevent:nil]; Used when getting the current uiviewcontroller more difficult.
3. Direct execution [[[UIApplication sharedApplication] keyWindow] endEditing:YES] .

Refer to the "iOS Development Advanced" by Tang Qiao, the Great God.

The keyboard's pick up in iOS