Migration to ViewPager2

Feature Request

Why it is needed

Earlier this year, Google announced ViewPager2 in Google IO/19. ViewPager2 is the replacement of ViewPager and is much better. The biggest change in the ViewPager2 API is that it now uses the RecyclerView.

Possible implementation

class PagerAdapter : RecyclerView.Adapter<PageViewHolder>() {
    var list: List<ReactNativeView> = listOf()
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): PageViewHolder {
        return PageViewHolder(parent)
    }
override fun onBindViewHolder(holder: PageViewHolder, position: Int) {
        holder.bind(list[position])
    }
fun setItem(list: List<ReactNativeView>) {
        this.list = list
        notifyDataSetChanged()
    }
override fun getItemCount(): Int = list.size
}

[troZee]

You can checkout my progress here: https://github.com/react-native-community/react-native-viewpager/commits/%40troZee/viewpager2 . Currently, I am struggling with FragmentStateAdapter. Previously I implemented it using pure RecyclerViewAdapter, but IMO it is not a good solution. Feel free to share some code, if you would like to.

[ferrannp]

I recommend playing and having fun with https://github.com/android/views-widgets-samples/tree/master/ViewPager2. See examples:

😄