How to detect whether custom keyboard is activated from the keyboard's container app?

Question

I was wondering if there is a method that would allow me to detect from the keyboard container app whether the associated keyboard has been activated in the

Answer 1

You can use this function (Swift 3 and 4) to check your custom keyboard extension have open access or not:

func isOpenAccessGranted() -> Bool{
    if #available(iOS 10.0, *) {
       let originalString = UIPasteboard.general.string
       UIPasteboard.general.string = "Sour LeangChhean"

       if UIPasteboard.general.hasStrings {

           UIPasteboard.general.string = originalString ?? ""
           return true
       }else{
           UIPasteboard.general.string = ""
           return false
       }
  } else {
    // Fallback on earlier versions
       if UIPasteboard.general.isKind(of: UIPasteboard.self) {
           return true
       }else{
           return false
       }
   }
}