RVPagerSnapFancyDecorator-usage.kt

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

        val recyclerView = findViewById<RecyclerView>(R.id.recycler_view)
        // Usual setups
        recyclerView.layoutManager = LinearLayoutManager(activity, LinearLayoutManager.HORIZONTAL, false)
        recyclerView.adapter = ...
        // Decorator set-up
        val cardWidthPixels = activity.resources.displayMetrics.widthPixels * 0.80f
        val cardHintPercent = 0.01f
        recyclerView.addItemDecoration(RVPagerSnapFancyDecorator(activity, cardWidthPixels, cardHintPercent))
    }
}