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 } }
