notifyItemRangeInserted

The notifyItemRangeInserted method is a function typically found within adapter classes in Android development, specifically those that work with RecyclerView. Its primary purpose is to efficiently inform the RecyclerView about a range of items that have been newly added to the underlying data set. Instead of notifying the RecyclerView about each inserted item individually, which can be less performant, notifyItemRangeInserted signals a contiguous block of new data.

When this method is called, it takes two integer arguments: a position representing the starting index of the newly inserted items, and a count indicating how many items were inserted from that starting position. The RecyclerView then uses this information to animate the insertion of these new items and update its view hierarchy accordingly. This leads to a smoother user experience compared to a full data set refresh.

It is crucial to call notifyItemRangeInserted only after the actual data set has been modified to include the new items. Mismatching the data set with the notification can lead to incorrect display or crashes. Developers should use this method when adding multiple items at once to maintain optimal performance and visual feedback in their RecyclerView implementations.