Kotlin Standard Library Cookbook

How it works...

Let's start by testing how we can use our dialog() function in action. Let's use it to define a sample Dialog class instance:

val dialog =        dialog {            title {                "Warning!"            }            message {                text = "You have 99999 viruses on your computer!"                color = "#FF0000"            }            image {                File.createTempFile("red_alert", "png")            }        }

Now, we can invoke the show() function on the dialog variable, which is going print the following output to the console:

Dialog...Title: Warning! Image: [B@548c4f57 Message: You have 99999 viruses on your computer!

That's pretty cool! The DialogBuilder class allows us to compose instances of the Dialog type in a readable and natural way.

Implementing the new syntax for the Dialog class composition was possible by the use of higher-order ...