Im looking for the difference in using list adapter and recycleview adapter in android. Any different about performance, pros and cons in using them.
3 Answers
ListAdapter is just an extension of RecyclerView.Adapter . Its computes diffs between Lists on a background thread with AsyncListDiff.
You can obviously create a RecyclerView.Adapter to work in same way . Its just ListAdapter already works on this principal out of the box. It defines a contract to force DiffUtil uses hence both of its constructor need a DiffChecker.
Performance will be same if you use ListAdapter or a RecyclerView.Adapter with AsyncDiffChecker. Without async Diff checker ListAdapter's performance will be better.
Recyclerview.Adapter
- best if the list is static
ListAdapter
- best if the list is dynamic
List Adapter is extension of RecyclerView.Adapter for presenting List data in a RecyclerView, including computing differences between Lists on a background thread.
It usage DiffUtil utility class that calculates the difference between two lists and outputs a list of update operations that converts the first list into the second one.
In recycler view using a LiveData is an easy way to provide data to the adapter, with the help of list adapter it isn't required - you can simply call submitList(List) when new lists are available. You can see implementation here.
So in a case of static content you can use RecyclerView.Adapter but in case of dynamic content ListAdapter is preferred.
Related