Negate #available statement

Question

I want to execute a code block only on devices running with an OS older than iOS8. I can\'t do:

if #available(iOS 8.0, *) == false {
    doFoo()         


        

Answer 1

Seems it's the best solution, before Swift2 you had to use other methods such as using ready-to-use classes wrote by individuals. But that's fine, you can set a variable in viewDidLoad() and use it to detect the older devices:

var isNewerThan8: Bool = false

func viewDidLoad(){
   if #available(iOS 8.0, *) { 
      isNewerThan8 = true
   } else { 
      isNewerThan8 = false
   }
}

func myFunction(){
   if isNewerThan8 {
     //foo
   }else{
    //boo
   }
}