#define_UIKeyboardFrameEndUserInfoKey(&UIKeyboardFrameEndUserInfoKey!=NULL?UIKeyboardFrameEndUserInfoKey:@"UIKeyboardBoundsUserInfoKey")UIKeyboardFrameEndUserInfoKey!=NULL和&UIKeyboardFrameEndUserInfoKey!=NULL有区别吗？我试过:if(&UIKeyboardFrameEndUserInfoKey!=NULL){...}并收到警告Comparisonofaddressof'UIKeybo

我正在尝试根据键盘高度滚动我的View。这是我在viewDidLoad中的代码:[[NSNotificationCenterdefaultCenter]addObserverForName:UIKeyboardWillChangeFrameNotificationobject:nilqueue:nilusingBlock:^(NSNotification*note){lastKeyboardFrame=[note.userInfo[UIKeyboardFrameEndUserInfoKey]CGRectValue];}];(在我获得lastKeyboardFrame之后，我用它来将我的

如何获取键盘大小以调整UITextView的大小以及如何在日文键盘上使用UIKeyboardFrameEndUserInfoKey？以下调整UITextView大小的代码在标准键盘上运行良好。但不适用于日语。如何解决？-(void)keyboardWillShow:(NSNotification*)aNotification{[selfmoveTextViewForKeyboard:aNotificationup:YES];}-(void)keyboardWillHide:(NSNotification*)aNotification{[selfmoveTextViewForKeyboa

对于常量UIKeyboardFrameEndUserInfoKey，在Apple文档中它说:Thesecoordinatesdonottakeintoaccountanyrotationfactorsappliedtothewindow’scontentsasaresultofinterfaceorientationchanges.Thus,youmayneedtoconverttherectangletowindowcoordinates(usingtheconvertRect:fromWindow:method)ortoviewcoordinates(usingtheconvert

在管理键盘中documentation:UIKeyboardFrameBeginUserInfoKeyThekeyforanNSValueobjectcontainingaCGRectthatidentifiesthestartframeofthekeyboardinscreencoordinates.Thesecoordinatesdonottakeintoaccountanyrotationfactorsappliedtothewindow’scontentsasaresultofinterfaceorientationchanges.Thus,youmayneedtoconver