NSAlert在XCode 7

Question

我期待更新此代碼爲10.8至10.11。這是原始代碼。

  NSAlert *alertSheet = [NSAlert alertWithMessageText:@"Message Text." defaultButton:@"OK" alternateButton:nil otherButton:nil informativeTextWithFormat:@"Informative text PJ%@-%@ with more text.", self.projectNumber,self.projectName]; 
     [alertSheet setAlertStyle:NSCriticalAlertStyle]; 
     [alertSheet beginSheetModalForWindow:self.window modalDelegate:nil didEndSelector:nil contextInfo:nil]; 

某些代碼已棄用。這是我迄今爲止所做的，但它不起作用。

  NSAlert *alertSheet = [[NSAlert alloc]init]; 
     [alertSheet setMessageText:@"Message Text."]; 
     [alertSheet setInformativeText:@"Informative text PJ%@-%@ with more text.", self.projectNumber,self.projectName]; 
     [alertSheet beginSheetModalForWindow:self.windowPreferences completionHandler:nil]; 

Answer 1

informativeText不是可變參數（從來沒有）

[alertSheet setInformativeText:[NSString stringWithFormat:@"Informative text PJ%@-%@ with more text.", self.projectNumber,self.projectName]]; 

您還可以使用點符號

alertSheet.informativeText = [NSString stringWithFormat...