How to implement shared transition element from RecyclerView item to Fragment with Android Navigation Component?

To solve the return transition problem you need to add this lines on the Source Fragment (the fragment with the recycler view) where you initialize your recycler view

// your recyclerView
recyclerView.apply {
                ...
                adapter = myAdapter
                postponeEnterTransition()
                viewTreeObserver
                    .addOnPreDrawListener {
                        startPostponedEnterTransition()
                        true
                    }
}

Here is my example with RecyclerView that have fragment shared transition. In my adapter i am setting different transition name for each item based on position(In my example it is ImageView).

override fun onBindViewHolder(holder: ViewHolder, position: Int) {
    val item = items[position]
    holder.itemView.txtView.text=item
    ViewCompat.setTransitionName(holder.itemView.imgViewIcon, "Test_$position")
    holder.setClickListener(object : ViewHolder.ClickListener {
        override fun onClick(v: View, position: Int) {
            when (v.id) {
                R.id.linearLayout -> listener.onClick(item, holder.itemView.imgViewIcon, position)
            }
        }
    })

}

And when clicking on item, my interface that implemented in source fragment:

override fun onClick(text: String, img: ImageView, position: Int) {
    val action = MainFragmentDirections.actionMainFragmentToSecondFragment(text, position)
    val extras = FragmentNavigator.Extras.Builder()
            .addSharedElement(img, ViewCompat.getTransitionName(img)!!)
            .build()
    NavHostFragment.findNavController(this@MainFragment).navigate(action, extras)
}

And in my destination fragment:

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    info("onCreate")
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        sharedElementEnterTransition = TransitionInflater.from(context).inflateTransition(android.R.transition.move)
    }
}

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
    info("onCreateView")
    return inflater.inflate(R.layout.fragment_second, container, false)
}

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
    info("onViewCreated")
    val name=SecondFragmentArgs.fromBundle(arguments).name
    val position=SecondFragmentArgs.fromBundle(arguments).position
    txtViewName.text=name
    ViewCompat.setTransitionName(imgViewSecond, "Test_$position")
}