RecyclerView
RecyclerView is an Android UI component library that efficiently displays large sets of data in a scrollable list or grid. It recycles view items as they scroll off-screen to improve performance and memory usage, and provides a flexible architecture for custom layouts and animations. It is part of the Android Jetpack suite and is the modern replacement for older list components like ListView.
Developers should use RecyclerView when building Android apps that need to display dynamic or large datasets, such as social media feeds, product catalogs, or chat messages, as it offers better performance and customization than ListView. It is essential for creating smooth-scrolling interfaces with complex item layouts, animations, or heterogeneous item types, and is widely adopted in professional Android development.