ViewGroup analyser for Android in Kotlin

ViewGroupWalk.kt

@file:Suppress("MemberVisibilityCanBePrivate", "unused")

package <COM.EXAMPLE.APP>

import android.view.View
import android.view.ViewGroup
import androidx.core.view.children
import com.google.gson.GsonBuilder

class ViewGroupWalk(vg: ViewGroup) {
    val data = vg.walk()

    private fun View.walk(): ViewInfo = ViewInfo(
        javaClass.name, if (this@walk is ViewGroup) children.toList().map { it.walk() } else null)

    fun gson(): String = GsonBuilder().setPrettyPrinting().create().toJson(data)

    inner class ViewInfo(val name: String, val children: List<ViewInfo>?)
}