我有一个显示View并在指定时间间隔后自动消失的按钮。现在，如果在View已经可见时再次按下按钮，那么它应该消失并显示一个新View，并且重置新View的计时器。在按下按钮时，我有以下代码:funcshowToast(){timer?.invalidate()timer=nilremoveToast()varappDelegate=UIApplication.sharedApplication().delegateas!AppDelegatevartoAddView=appDelegate.window!toastView=UIView(frame:CGRectMake(0,toAdd

classfuncshowNotificationWithTitleWarning(controller:UIViewController,title:String,subtitle:String){letsubtitle=subtitlevarisTrue:Bool=false//lethorizontalPadding:CGFloat=0.0letdeviceWidth:CGFloat=Device.DeviceWidth//letdeviceHeight:CGFloat=Device.DeviceHeightletheight:CGFloat=64.0letcontentFram