RecyclerView with Cursor Adapter

Show Photos in Album

RecyclerView GridLayout Multi Selection With Toolbar
RecyclerView Selection With String Key and SelectionPredicate

Only allow certain items to be selected

RecyclerView Selection (Long Key)

Make Adapter Items Selectable

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Android Firestore RecyclerView With FirestoreUI FirestoreRecyclerAdapter (Kotlin)
Android RecyclerView in Fragment (Kotlin)