How to convert Swift Bool? -> String?
String(Bool) is the easiest way.
var myBool = true
var boolAsString = String(myBool)
let b1: Bool? = true
let b2: Bool? = false
let b3: Bool? = nil
print(b1?.description ?? "none") // "true"
print(b2?.description ?? "none") // "false"
print(b3?.description ?? "none") // "none"
or you can define 'one liner' which works with both Bool and Bool? as a function
func BoolToString(b: Bool?)->String { return b?.description ?? "<None>"}