An Anko Example with the main content extracted to a seperate class

ankobasic_MainActivity.kt

package com.example.john.ankobasic

import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import org.jetbrains.anko.setContentView


/**
 * Created by john on 11/12/17.
 */
class MainActivity : AppCompatActivity() {

    private lateinit var presenter: MainPresenter

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        val mainView = MainView()
        mainView.setContentView(this)
        presenter = MainPresenter(mainView)

    }

}

ankobasic_MainContentView.kt

package com.example.john.ankobasic

import android.content.Context
import android.util.AttributeSet
import android.view.View
import android.view.ViewGroup
import android.view.ViewManager
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import org.jetbrains.anko.*
import org.jetbrains.anko.custom.ankoView

/**
 * Created by john on 11/12/17.
 */



class MainContentView :  AnkoComponent<Context> {

    lateinit var textBox: EditText
    lateinit var button: Button
    lateinit var clickCount: TextView

    override fun createView(ui: AnkoContext<Context>) = with(ui) {
        verticalLayout {
            button = themedButton {
                text = "ok"
            }
            textBox = themedEditText {
                hint = "hi"
            }
            clickCount = themedTextView {
                text = "0"
            }
        }
    }
}

ankobasic_MainModel.kt

package com.example.john.ankobasic

/**
 * Created by john on 11/10/17.
 */
class MainModel {
    var clickCount = 0
}

ankobasic_MainPresenter.kt

package com.example.john.ankobasic

import android.widget.TextView


/**
 * Created by john on 11/8/17.
 */
class MainPresenter(private val view: MainView) {

    private val model : MainModel = MainModel()
    private val clickCountText  = view.clickCount

    init {
        setUpListeners()
    }

    private fun setUpListeners() {
        view.button.setOnClickListener {
            println("button was clicked")
            model.clickCount += 1
            clickCountText.text = "${model.clickCount}"
        }
        view.settingItem.setOnMenuItemClickListener {
            println("setting menu item was clicked")
            true
        }
        view.otherItem.setOnMenuItemClickListener {
            println("other menu item was clicked")
            true
        }

    }
}

ankobasic_MainView.kt

package com.example.john.ankobasic

import android.support.design.widget.FloatingActionButton
import android.view.*
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import org.jetbrains.anko.*
import org.jetbrains.anko.design.*

/**
 * Created by john on 11/5/17.
 */

class MainView : AnkoComponent<MainActivity> {

    lateinit var textBox: EditText
    lateinit var button: Button
    lateinit var clickCount: TextView
    private lateinit var mainMenu: Menu
    lateinit var settingItem: MenuItem
    lateinit var otherItem: MenuItem
    private lateinit var floatingActionButton: FloatingActionButton

    override fun createView(ui: AnkoContext<MainActivity>) = with(ui) {
        coordinatorLayout {
            verticalLayout {
                themedAppBarLayout {
                    themedToolbar(theme = R.style.Base_ThemeOverlay_AppCompat_Dark_ActionBar) {
                        title = resources.getString(R.string.app_name)
                        popupTheme = R.style.AppTheme
                        mainMenu = menu
                        settingItem = mainMenu.add("My Settings")
                        otherItem = mainMenu.add("My Other")
                    }
                }.lparams(width = matchParent, height = wrapContent)
                mainContentView {
                    button = it.button
                    textBox = it.textBox
                    clickCount = it.clickCount
                }.lparams(width = matchParent, height = wrapContent)
            }.lparams(width = matchParent, height = wrapContent)
            floatingActionButton = floatingActionButton {
                imageResource = android.R.drawable.ic_dialog_email
            }.lparams {
                margin = dip(10)
                gravity = Gravity.BOTTOM or Gravity.END
            }
        }
    }
}

ankobasic_ViewManagerExtensions.kt

package com.example.john.ankobasic

import android.view.View
import android.view.ViewManager
import org.jetbrains.anko.AnkoContext
import org.jetbrains.anko.custom.ankoView

/**
 * Created by john on 11/12/17.
 */
inline fun ViewManager.mainContentView(theme: Int = 0) = mainContentView(theme) {}

inline fun ViewManager.mainContentView(theme: Int = 0, init: View.(mainContentView: MainContentView) -> Unit): View {
    val mainContentView = MainContentView()
    return ankoView({ mainContentView.createView(AnkoContext.create(it)) }, theme, { init(mainContentView)} )
}