how to access member of outer class from inner class in Kotlin?

Question

How to access the member of outer class from member function of inner class in kotlin. Consider the following code.

class A{
    var name: String

    class B{
        fun show(){
            print(name)          //<----- here ide shows error. name is not accessible
        }
    }
}

I am writing this code in android studio. It is working when written in java but not when we write code in kotlin.

`B` is not a _child_ class or a subclass as in the title, it's a _nested_ class. In Java nested classes are inner by default; in Kotlin they aren't. — Alexey Romanov, Apr 12 '19 at 14:59

score 25 · Accepted Answer · answered Apr 12 '19 at 10:30

25

You should mark class B as inner:

class A{
  var name: String

  inner class B{
    fun show(){
      print(name)
    }
  }
}

answered Apr 12 '19 at 10:30

Eric Martori

2,885
19
26

score 2 · Answer 2 · answered Apr 12 '19 at 10:29

2

Use like this

class A{
lateinit var name: String

inner class B{
    fun show(){
        print(name)
    }
}
}

answered Apr 12 '19 at 10:29

sasikumar

12,540
3
28
48

how to access member of outer class from inner class in Kotlin?

2 Answers2