Android Auto Image Slider with Kotlin

package com.autoimageslider

import android.content.Context
import android.os.Handler
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.TextView
import androidx.viewpager.widget.PagerAdapter
import androidx.viewpager.widget.ViewPager

class AutoImageSliderAdapter(private val context: Context, private var imageList: List<ItemImageSlider>) : PagerAdapter() {

    override fun getCount() =imageList.size

    override fun isViewFromObject(view: View, `object`: Any): Boolean {
        return view === `object`
    }

    override fun instantiateItem(container: ViewGroup, position: Int): Any {
        val view: View =  (context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)
                as LayoutInflater).inflate(R.layout.image_slider_item, null)
        val ivImages = view.findViewById<ImageView>(R.id.imageView)
        val heading=view.findViewById<TextView>(R.id.tvHeading)
        val subHeading=view.findViewById<TextView>(R.id.tvSubHeading)

        ivImages.setImageResource(imageList[position].image)
        heading.text=imageList[position].heading
        subHeading.text= imageList[position].subheading

        val vp = container as ViewPager
        vp.addView(view, 0)
        return view
    }
}

package com.gtappdevelopers.kotlingfgproject

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import com.smarteist.autoimageslider.SliderView

class MainActivity : AppCompatActivity() {

    // on below line we are creating a variable 
    // for our array list for storing our images.
    lateinit var imageUrl: ArrayList<String>

    // on below line we are creating 
    // a variable for our slider view.
    lateinit var sliderView: SliderView

    // on below line we are creating 
    // a variable for our slider adapter.
    lateinit var sliderAdapter: SliderAdapter

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
       
        // on below line we are initializing our slier view.
        sliderView = findViewById(R.id.slider)

        // on below line we are initializing
        // our image url array list.
        imageUrl = ArrayList()

        // on below line we are adding data to our image url array list.
        imageUrl =
            (imageUrl + "https://practice.geeksforgeeks.org/_next/image?url=https%3A%2F%2Fround-lake.dustinice.workers.dev%3A443%2Fhttps%2Fmedia.geeksforgeeks.org%2Fimg-practice%2Fbanner%2Fdsa-self-paced-thumbnail.png&w=1920&q=75") as ArrayList<String>
        imageUrl =
            (imageUrl + "https://practice.geeksforgeeks.org/_next/image?url=https%3A%2F%2Fround-lake.dustinice.workers.dev%3A443%2Fhttps%2Fmedia.geeksforgeeks.org%2Fimg-practice%2Fbanner%2Fdata-science-live-thumbnail.png&w=1920&q=75") as ArrayList<String>
        imageUrl =
            (imageUrl + "https://practice.geeksforgeeks.org/_next/image?url=https%3A%2F%2Fround-lake.dustinice.workers.dev%3A443%2Fhttps%2Fmedia.geeksforgeeks.org%2Fimg-practice%2Fbanner%2Ffull-stack-node-thumbnail.png&w=1920&q=75") as ArrayList<String>

        // on below line we are initializing our 
        // slider adapter and adding our list to it.
        sliderAdapter = SliderAdapter( imageUrl)

        // on below line we are setting auto cycle direction 
        // for our slider view from left to right.
        sliderView.autoCycleDirection = SliderView.LAYOUT_DIRECTION_LTR

        // on below line we are setting adapter for our slider.
        sliderView.setSliderAdapter(sliderAdapter)

        // on below line we are setting scroll time
        // in seconds for our slider view.
        sliderView.scrollTimeInSec = 3

        // on below line we are setting auto cycle 
        // to true to auto slide our items.
        sliderView.isAutoCycle = true

        // on below line we are calling start
        // auto cycle to start our cycle.
        sliderView.startAutoCycle()

    }

}