UIKIT_EXTERN NSString *const UIKeyboardWillChangeFrameNotification;
鍵盤可能因?yàn)楦淖冚斎敕?切換成表情輸入,切換成英文,那么frame可能會變高,變矮,不一定會發(fā)出下面這些通知,但是肯定會發(fā)上面的通知杏慰。
UIKIT_EXTERN?NSString *const UIKeyboardWillShowNotification;
UIKIT_EXTERN?NSString *const UIKeyboardDidShowNotification;
UIKIT_EXTERN?NSString *const UIKeyboardWillHideNotification;
UIKIT_EXTERN?NSString *const UIKeyboardDidHideNotification;
