FocusDelegate

abstract class FocusDelegate<K : Any!>

kotlin.Any
↳	androidx.recyclerview.selection.FocusDelegate

Override methods in this class to provide application specific behaviors related to focusing item.

Summary

Public constructors
`<init>()`

Public methods
abstract Unit	`focusItem(item: ItemDetailsLookup.ItemDetails<K>)` If environment supports focus, focus `item`.
abstract Unit	`clearFocus()` If the environment supports focus and something is focused, unfocus it.
abstract Int	`getFocusedPosition()`
abstract Boolean	`hasFocusedItem()`

FocusDelegate()

abstract fun focusItem(item: ItemDetailsLookup.ItemDetails<K>): Unit

If environment supports focus, focus item.

abstract fun clearFocus(): Unit

If the environment supports focus and something is focused, unfocus it.

abstract fun getFocusedPosition(): Int

Return
Int: the position of the currently focused item, if any.

abstract fun hasFocusedItem(): Boolean

Return
Boolean: true if there is a focused item.