我的通用应用程序是一个全屏View。按下按钮会翻转以显示设置页面:-(void)showSettings{FlipsideViewController*flipsideVC=[FlipsideViewControlleralloc];NSString*settingsNib;if(isIPad())settingsNib=isCurrentlyPortrait()?@"settings_iPad_portrait":@"settings_iPad_landscape";elsesettingsNib=@"settings_iPhone";[flipsideVCinitWithNibNa