What methods are implemented for adding and removing elements with animation in RecyclerView?

To add and remove items with animation in RecyclerView, you typically implement methods in the adapter and use RecyclerView.ItemAnimator.

Main steps:

1. Update data: change the data source (e.g., list of items).

2. Notify the adapter:

   • Use notifyItemInserted(position) to add an item.
   • Use notifyItemRemoved(position) to remove an item.

3. Animation: RecyclerView will automatically apply the add or remove animation if an ItemAnimator is set (by default DefaultItemAnimator).

Example of adding an item:

items.add(position, newItem);
adapter.notifyItemInserted(position);

Example of removing an item:

items.remove(position);
adapter.notifyItemRemoved(position);

For custom animations, you can create your own class inheriting from RecyclerView.ItemAnimator and override animation methods.