PatrykAndroid

dependencies {
    ...
    implementation "androidx.viewpager2:viewpager2:1.0.0"
    ...
}

PatrykAndroid

class Item(val color: Int)

PatrykAndroid

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/item"

PatrykAndroid

class PageTransformer : ViewPager2.PageTransformer {
    override fun transformPage(page: View, position: Float) {
        val offset = position * -(2 * (page.width / 10))
        page.translationX = offset
    }
}

PatrykAndroid

class PageTransformer : ViewPager2.PageTransformer {
    override fun transformPage(page: View, position: Float) {
        val offset = position * -(2 * (page.width / 10))
        page.translationX = offset
    }
}

PatrykAndroid

class PageTransformer : ViewPager2.PageTransformer {
    companion object {
        private const val SCALE = 0.9f
    }

    override fun transformPage(view: View, position: Float) {
        val translationOffset = calculateTranslationOffset(view, position)
        with(view) {
            when {
                position < -2.5 -> {

PatrykAndroid

private fun initViewPager() {
        val pageAdapter = PageAdapter(listOf(Item(Color.RED), Item(Color.BLUE), Item(Color.GREEN)))
        viewPager2.setPageTransformer(PageTransformer())
        viewPager2.offscreenPageLimit = 2
        viewPager2.orientation = ViewPager2.ORIENTATION_VERTICAL
        viewPager2.adapter = pageAdapter
        viewPager2.currentItem = pageAdapter.getMiddlePosition()
    }

PatrykAndroid

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

    private fun initViewPager() {
        val pageAdapter = PageAdapter(listOf(Item(Color.RED), Item(Color.BLUE), Item(Color.GREEN)))
        viewPager2.offscreenPageLimit = 2
        viewPager2.orientation = ViewPager2.ORIENTATION_VERTICAL

PatrykAndroid

override fun getItemCount(): Int {
        if (items.size <= 1) {
            return items.size
        }
        val period = Int.MAX_VALUE / 2 / items.size
        return period * items.size * 2
    }

PatrykAndroid

class PageAdapter(private val items: List<Item>) : RecyclerView.Adapter<PageAdapter.ViewHolder>() {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        return ViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.item, parent, false))
    }

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        holder.item.setBackgroundColor(items[position].color)
    }