I finally added a RecyclerView to display the list of elephants on the home fragment which is ElephantListFragment.
With a mocktail of ListAdapter, Data Binding and DiffUtil, populating data to the RecyclerView in an efficient way was damn easy.
Here's my sleek adapter:
class ElephantListAdapter : ListAdapter<Elephant, ElephantListAdapter.ViewHolder>(ElephantDiffCallback()) { override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder { val binding = ElephantListItemBinding.inflate( LayoutInflater.from(parent.context), parent, false ) return ViewHolder(binding) } override fun onBindViewHolder(holder: ViewHolder, position: Int) { val elephant = getItem(position) holder.bind(elephant, createClickListener(elephantName = elephant.name)) } class ViewHolder( private val elephantListItemBinding: ElephantListItemBinding ) : RecyclerView.ViewHolder(elephantListItemBinding.root) { fun bind(item: Elephant, listener: View.OnClickListener) { elephantListItemBinding.apply { elephant = item clickListener = listener executePendingBindings() } } } private fun createClickListener(elephantName: String): View.OnClickListener { return View.OnClickListener { val navArgs = Bundle() navArgs.putString("elephantName", elephantName) it.findNavController().navigate(R.id.elephantProfileFragment, navArgs) } } } private class ElephantDiffCallback : DiffUtil.ItemCallback<Elephant>() { override fun areItemsTheSame(oldItem: Elephant, newItem: Elephant): Boolean = oldItem.id == newItem.id override fun areContentsTheSame(oldItem: Elephant, newItem: Elephant): Boolean = oldItem == newItem } Polishes can be done here and there which I'll do in some time.
Check out the repo, here: https://github.com/rahulchowdhury/elly
Next, I would like to target UI testing with Espresso. Any handy guide for me?
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