lambda expression on interface in Kotlin

Question

I\'m converting a project in Java to Kotlin and I\'m surprise that interface made the code heavier in Kotlin than in Java.

Example: I want to set t

Answer 1

You use Java style while use Kotlin =)

If you really want to use OnBackPressedListener you can just wrap it in inline function, like:

inline fun backPress(crossinline action:()->Unit):OnBackPressedListener {
    return object: OnBackPressedListener {
        override fun onBackPressed() {
            action()
        }
    }
}

And then just set listener

activity.setOnBackPressed(backPress {  
/* Do something */
})