swift pass function as parameter
// You need to use Closures
// The Default Syntax for closures is () -> ()
// Instead of Selector you could directly mention the method definition
func showConfirmBox(msg:String, title:String,
firstBtnStr:String, firstSelector:(sampleParameter: String) -> returntype,
secondBtnStr:String, secondSelector:() -> returntype,
caller:UIViewController) {
//Your Code
}
// But using this will create readability problems so i suggest you to use typeAlias
typealias MethodHandler1 = (sampleParameter : String) -> Void
typealias MethodHandler2 = () -> Void
func showConfirmBox(msg:String, title:String,
firstBtnStr:String, firstSelector:MethodHandler1,
secondBtnStr:String, secondSelector:MethodHandler2) {
// After any asynchronous call
// Call any of your closures based on your logic like this
firstSelector("FirstButtonString")
secondSelector()
}
// You can call your method like this
func anyMethod() {
//Some other logic
showConfirmBox(msg: "msg", title: "title", firstBtnStr: "btnString",
firstSelector: { (firstSelectorString) in
print(firstSelectorString) //this prints FirstButtonString
},
secondBtnStr: "btnstring") {
//Invocation comes here after secondSelector is called
}
}