This project demonstrates an issue with UIModalPresentationFormSheet that only appears to occur with iPad mini's.

App Flow

The app delegate listens for UIKeyboard{Will,Did}{Hide,Show}Notification and UIKeyboard{Will,Did}ChangeFrameNotification .

The rootViewController presents a Form Sheet:

UIViewController *loginController = ...
loginController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentViewController:loginController animated:YES completion:^{ }];

The Form Sheet has a textfield, and on touching, on touching, it presents the keyboard

Results

Open app in iPad 2 (Model 10A403), and iPad mini (Model MD528X)

When opening in an iPad 2, the form sheet moves up to touch the status bar. On the iPad mini, the keyboard stays stationary.

UIKeyboard{Will,Did}{Hide,Show}Notification and UIKeyboard{Will,Did}ChangeFrameNotification fire for iPad2 But only UIKeyboard{Will,Did}ChangeFrameNotification fire for iPad Mini

iPad2

iPad2+Keyboard

Mini

Mini+Keyboard