RecyclerViews – A Developer’s deep dive
summary
Shows concrete code for a custom adapter and ViewHolder and explains the three overriden methods onCreateViewHolder/onBindViewHolder/getItemCount, demonstrates avoiding repeated inflation and findViewById to cut jank, and explains scrap heap vs recycler pool and when views become dirty. Covers performance knobs like setHasFixedSize and setItemViewCacheSize, describes multi‑type lists and concat adapter for header/body/footer, implements nested parent/child RecyclerViews, and maps equivalents in Jetpack Compose via lazy vertical grid.
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chapters (5)
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