Sample for article needs - How to create a compound view?

MainActivity.kt

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        consentsView.onConsentsCheckedChangeListener = { allConsentsChecked ->
            confirmButton.isEnabled = allConsentsChecked
        }
    }
}