Swift Code Summary 8

1. Determine if the current controller is displayed:

// determines whether the current controller is displayed    Func iscurrentviewcontrollervisible (), Bool {        return (self.isviewloaded) && (( Self.view.window = nil)    }

2. Solve the white screen problem:

In fact, white screen problem is the controller's jump problem.

ifLet Tempnav = window?. Rootviewcontroller as?basenavigationcontroller{ forVcinchtempNav.childViewControllers.reversed () {if(VC = = TempNav.childViewControllers.last && vc.iskind (of:HomeViewController.self)) | |(VC= = TempNav.childViewControllers.last &&Vc.iskind (of:SumPayViewController.self)) {                     Break                }  Else ifVc.iskind (of:WaiterHomeViewController.self) {ifHHTSwitchGlobalData.shared.isBusinessModel {UIApplication.shared.pop2Business () }Else{UIApplication.shared.gotoRootViewController ()}} }        }

3. Data transfer model:

Note the type of the data model, otherwise it cannot be converted correctly.

4.NSNumber and NSString Conversion accuracy issues:

Https://www.aliyun.com/jiaocheng/400490.html

" %.2f " , Model.money.doubleValue)                 = ["code": Model.code,"ID": Model.id,"  Money" as [String:any]

5.Xib Set Uistackview, note that the child controls are set to an equal width, otherwise the layout is out of control.

Swift Code Summary 8