Summary: Nested Classes | Constants | Protected Ctors | Methods | Inherited Methods

ItemKeyProvider

Kotlin |Java

public abstract class ItemKeyProvider
extends Object

java.lang.Object
↳	androidx.recyclerview.selection.ItemKeyProvider<K>

Known direct subclasses

StableIdKeyProvider

StableIdKeyProvider An ItemKeyProvider that provides stable ids by way of cached RecyclerView.Adapter stable ids.

Provides selection library access to stable selection keys identifying items presented by a RecyclerView instance.

Summary

Nested classes
`@interface`	`ItemKeyProvider.Scope`

Constants
`int`	`SCOPE_CACHED` Provides access to cached data based for items that were recently bound in the view.
`int`	`SCOPE_MAPPED` Provides access to all data, regardless of whether it is bound to a view or not.

Protected constructors
`ItemKeyProvider(int scope)` Creates a new provider with the given scope.

Public methods
`abstract K`	`getKey(int position)`
`abstract int`	`getPosition(K key)`

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Constants

SCOPE_CACHED

public static final int SCOPE_CACHED

Provides access to cached data based for items that were recently bound in the view. Employing this provider will result in a reduced feature-set, as some features like SHIFT+click range selection and band selection are dependent on mapped access.

Constant Value: 1 (0x00000001)

SCOPE_MAPPED

public static final int SCOPE_MAPPED

Provides access to all data, regardless of whether it is bound to a view or not. Key providers with this access type enjoy support for enhanced features like: SHIFT+click range selection, and band selection.

Constant Value: 0 (0x00000000)

Protected constructors