如何像我在 android 中那样实现协议

Question

DialogManager.showDialog(this, message, new OnTwoButtonClickListener() {
               @Override
               public void onButtonClick1() {}                                        

               @Override
               public void onButtonClick2() {}                       
           });

How could I create same functionality in swift 3.

As far as I know I can't create new instance from protocol.

I know about delegation and I know I can do that way but I am looking for another solution.

I want my dialog usage will be as mentioned above.

Could anyone suggest me best solution?

Answer 1

Try using closures .

showDialog would be defined like this:

func showDialog(message: String, 
    button1Click: @escaping () -> Void, 
    button2Click: @escaping () -> Void)

To trigger the closures, do:

button1Click()
button2Click()

To call showDialog , do:

showDialog(message: "Hello", 
           button1Click: { // code },
           button2Click: { // code })