Summary: Ctors | Methods | Inherited Methods

StorageStrategy

Kotlin |Java

public abstract class StorageStrategy
extends Object

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

---

Strategy for storing keys in saved state. Extend this class when using custom key types that aren't supported by default. Prefer use of builtin storage strategies: createStringStorage(), createLongStorage(), createParcelableStorage(Class).

See SelectionTracker.Builder for more detailed advice on which key type to use for your selection keys.

Summary

Public constructors
StorageStrategy(Class<K> type) Creates a new instance.

Public methods
abstract Bundle	asBundle(Selection<K> selection) Creates a Bundle from supplied Selection.
abstract Selection<K>	asSelection(Bundle state) Create a Selection from supplied Bundle.
static StorageStrategy<Long>	createLongStorage()
static <K extends Parcelable> StorageStrategy<K>	createParcelableStorage(Class<K> type)
static StorageStrategy<String>	createStringStorage()

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()

Public constructors

StorageStrategy

public StorageStrategy (Class<K> type)

Creates a new instance.

Parameters
type	Class: the key type class that is being used.

Public methods

asBundle

public abstract Bundle asBundle (Selection<K> selection)

Creates a Bundle from supplied Selection.

Parameters
selection	Selection: The selection to asBundle.

Returns
Bundle

asSelection

public abstract Selection<K> asSelection (Bundle state)

Create a Selection from supplied Bundle.

Parameters
state	Bundle: Bundle instance that may contain parceled Selection instance.

Returns
Selection<K>

createLongStorage

public static StorageStrategy<Long> createLongStorage ()

Returns
StorageStrategy<Long>	StorageStrategy suitable for use with Long keys.

createParcelableStorage

public static StorageStrategy<K> createParcelableStorage (Class<K> type)

Parameters
type	Class

Returns
StorageStrategy<K>	StorageStrategy suitable for use with Parcelable keys (like Uri).

createStringStorage

public static StorageStrategy<String> createStringStorage ()

Returns
StorageStrategy<String>	StorageStrategy suitable for use with String keys.