RecyclerView ist die Standard-Android-Komponente, um scrollbare Listen von Daten effizient darzustellen. Sie "recycelt" Views (verwendet sie beim Scrollen wieder), anstatt für jedes Element eine View zu erstellen — essenziell für die Performance bei langen Listen.
Warum RecyclerView (das Recycling-Konzept)
Displaying a long list naively (a view per item) is WASTEFUL — thousands of items =
thousands of views = memory/performance problems.
RECYCLERVIEW reuses a small pool of views:
→ only views for VISIBLE items exist; as you scroll, off-screen views are RECYCLED
(re-bound with new data) for newly-visible items
→ constant memory regardless of list size → smooth, efficient scrolling
→ This recycling is the key to performant lists.
