ios - Multiple intervals in single switch-case using tuple Swift 3 -


i new programming , trying switch multiple conditions. have label takes temperature in celsius or fahrenheit in dependence of 1 set, need take value , attribute settings based on temperature interval. how can manage in 1 switch (if possible), know how using 4 switches, it's long code... tried smth :

        let todaystringcomponent = double(templabel.text!)         let fahrstringcomponent = double(templabel.text!)         let yesterdaystringcomponent = double(yesterdaylabel.text!)         switch (celsunitbuttonbool, todaystringcomponent!) {         case (true?, -100 ... -40) :             //  gradientimageoutlet.image = uiimage(named: "thermo_01.png")!             if uidevice.current.userinterfaceidiom == .pad             {                 temperatureviewcenteraxiscnstr.constant = 315                 gradientheight.constant = 0                 animatechanges()             } else if  uidevice.current.userinterfaceidiom == .phone             {                 temperatureviewcenteraxiscnstr.constant = 315                 gradientheight.constant = 470                  animatechanges()             }         case (true?, -39 ... -26):             //   gradientimageoutlet.image = uiimage(named: "thermo_02.png")!             if uidevice.current.userinterfaceidiom == .pad             {                 temperatureviewcenteraxiscnstr.constant = 275                 gradientheight.constant = 75                  animatechanges()             } else if  uidevice.current.userinterfaceidiom == .phone             {                 temperatureviewcenteraxiscnstr.constant = 315                 gradientheight.constant = 470                  animatechanges()             }   default:             print("wth")         }

is possible manage in 1 switch can following:

1)check if it's fahr or cels,

2)if it's cels check intervals celsius , stuff

3)if it's fahr check intervals fahrenheit , stuff

4)and yesterdaylabel (with same intervals todaylabel) other stuff.

hope understand mean. thank you.

encapsulating logic enum simplify client code following:

let celsunitbuttonbool = true let todaystringcomponent = -50  let sample = temperature(cellbuttonispressed: celsunitbuttonbool,                          value: todaystringcomponent)  switch (sample, sample.value) { case (.fahrenheit, -100 ... -40):     break case (.celsius, -39 ... -26):     break default:     break }

the implementation of temperature rather straightforward.

enum temperature {     case fahrenheit(value: int)     case celsius(value: int) }  extension temperature {     init(cellbuttonispressed: bool, value: int) {         if cellbuttonispressed {             self = .celsius(value: value)         } else {             self = .fahrenheit(value: value)         }     }      var value: int {         switch self {         case .fahrenheit(value: let value),              .celsius(value: let value):             return value         }     } }

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