AdapterView

AdapterView is the base type behind classic Android widgets whose visible items come from an adapter.

You normally encounter it through concrete controls such as ListView, GridView, or Spinner rather than creating an AdapterView directly.

Use it when…

Use AdapterView as a type boundary when code needs to work with a classic adapter-backed view without depending on one concrete widget.

For new list and grid interfaces, prefer RecyclerView when its more flexible recycling model fits the screen.

How it behaves

Droid currently provides the generic AdapterView<T: Adapter> base and its inherited view-group behavior. Adapter population, selection, and callback APIs are not exposed on this type yet.

That makes the type useful mainly as a base class and generic constraint in current code.

Example

A helper can accept any concrete AdapterView whose adapter type satisfies Adapter:

func fillAvailableWidth<A: Adapter>(_ view: AdapterView<A>) {
    view.width(.matchParent)
}

The helper works with the common view surface without assuming list-, grid-, or spinner-specific behavior.

Notes

Do not instantiate the generic base just to display content. Choose the concrete adapter-backed widget that matches the UI you are building.