A weirdo spinner I suppose

CustomSpinnerAdapter.kt

package org.asheesh.fourbuttonsattwohundredpixels

import android.database.DataSetObserver
import android.util.Log
import android.view.View
import android.view.ViewGroup
import android.widget.SpinnerAdapter
import android.widget.TextView

class CustomSpinnerAdapter: SpinnerAdapter {
    override fun isEmpty(): Boolean {
        return false
    }

    override fun getView(position: Int, convertView: View?, parent: ViewGroup?): View {
        val view = TextView(MainActivity.singletonThis)
        view.text = "getView position=$position"
        Log.d("CustomSpinnerAdapter", "getView call position=$position")
        return view
    }

    override fun registerDataSetObserver(observer: DataSetObserver?) {
        // do nothing for now
    }

    override fun getItemViewType(position: Int): Int {
        return 0 // Using 0 to indicate TextView
    }

    override fun getItem(position: Int): Any? {
        if (position == 0) {
            return "Yup, first item"
        }
        return null
    }

    override fun getViewTypeCount(): Int {
        return 1
    }

    override fun getItemId(position: Int): Long {
        return position * 1L
    }

    override fun hasStableIds(): Boolean {
        return false
    }

    override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup?): View {
        val view = TextView(MainActivity.singletonThis)
        view.text = "getDropDownView position=$position"
        return view
    }

    override fun unregisterDataSetObserver(observer: DataSetObserver?) {
        return
    }

    override fun getCount(): Int {
        return 1
    }
}

MainActivity.kt

package org.asheesh.fourbuttonsattwohundredpixels

import android.os.Bundle
import android.os.Handler
import android.util.DisplayMetrics
import android.view.View
import android.widget.*
import androidx.appcompat.app.AppCompatActivity


class MainActivity : AppCompatActivity() {
    private lateinit var button1: Button
    private lateinit var button2: Button
    private lateinit var scrollThing: ScrollView
    private lateinit var dynamicLayout: RelativeLayout
    private lateinit var button_2_props: RelativeLayout.LayoutParams
    private var handler: Handler = Handler()

    companion object {
        public lateinit var singletonThis: MainActivity
    }


    override fun onCreate(savedInstanceState: Bundle?) {
        singletonThis = this

        dynamicLayout = RelativeLayout(this)
        scrollThing = ScrollView(this)
        scrollThing.addView(dynamicLayout)
        setContentView(scrollThing)
        val displayMetrics = DisplayMetrics()
        windowManager.defaultDisplay.getMetrics(displayMetrics)
        val height: Int = displayMetrics.heightPixels
        val width: Int = displayMetrics.widthPixels
        println("width is ${width}")
        println("height is ${height}")

        button1 = Button(this)
        button1.text = "Kale chips food truck pop-up distillery prism. Craft beer art party copper mug shaman whatever quinoa try-hard synth meditation vexillologist mixtape readymade. Poutine microdosing keffiyeh, offal 8-bit chia twee. Salvia flexitarian coloring book sriracha meggings microdosing brunch vaporware craft beer. Fam green juice everyday carry, pitchfork forage retro health goth. Banjo messenger bag mlkshk VHS mumblecore austin single-origin coffee la croix. Whatever umami lumbersexual poutine organic marfa mustache raclette yuccie try-hard kickstarter tumblr cliche brooklyn food truck."
        val atMostFourHundred = View.MeasureSpec.makeMeasureSpec(400, View.MeasureSpec.AT_MOST)
        button1.measure(atMostFourHundred, View.MeasureSpec.UNSPECIFIED)
        println("Button1 measuredWidth after measure() ${button1.measuredWidth}")

        button2 = Button(this)
        button2.text = "Zounds"
        button2.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED)
        println("Button2 measuredWidth after measure() ${button2.measuredWidth}")

        //println("Button1 width ${button1.width}")
        val button1params = RelativeLayout.LayoutParams(button1.measuredWidth, button1.measuredHeight)
        button1params.leftMargin = 500
        dynamicLayout.addView(button1, button1params)
        val params = RelativeLayout.LayoutParams(button2.measuredWidth, button2.measuredHeight)
        button_2_props = params
        params.topMargin = 2000
        params.leftMargin = button1.measuredWidth + 70
        dynamicLayout.addView(button2, params )

        // Create a Spinner
        val spinner = Spinner(this, Spinner.MODE_DROPDOWN)
        spinner.adapter = CustomSpinnerAdapter()
        dynamicLayout.addView(spinner)

        //println("Button1 width after addView ${button1.width}")
        //println("Button1 measuredWidth after addView ${button1.measuredWidth}")
        //println("Button1 width after measure() ${button1.width}")
        //println("Button1 maxWidth after measure() ${button1.maxWidth}")
        super.onCreate(savedInstanceState)
    }

    override fun onResume() {
        super.onResume()
        println("Button1 width in onResume ${button1.width}")
        println("Button1 measuredWidth in onResume ${button1.measuredWidth}")
        button1.measure(View.MeasureSpec.AT_MOST, View.MeasureSpec.AT_MOST)

        // Move button2 higher up, 2 sec later
        handler.postDelayed(Runnable {
            button_2_props.topMargin = 500
            button_2_props.leftMargin = button1.measuredWidth + 70
            val params = RelativeLayout.LayoutParams(button2.measuredWidth, button2.measuredHeight)
        }, 2000)


    }
}

Before click:

After click: