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

CursorObjectAdapter

Kotlin |Java

public class CursorObjectAdapter
extends ObjectAdapter

java.lang.Object
↳	androidx.leanback.widget.ObjectAdapter
	↳	androidx.leanback.widget.CursorObjectAdapter

An ObjectAdapter implemented with a Cursor.

Summary

Inherited constants

From class androidx.leanback.widget.ObjectAdapter

int

NO_ID

Indicates that an id has not been set.

Public constructors
`CursorObjectAdapter(PresenterSelector presenterSelector)` Constructs an adapter with the given `PresenterSelector`.
`CursorObjectAdapter(Presenter presenter)` Constructs an adapter that uses the given `Presenter` for all items.
`CursorObjectAdapter()` Constructs an adapter.

Public methods
`void`	`changeCursor(Cursor cursor)` Changes the underlying cursor to a new cursor.
`void`	`close()` Closes this adapter, closing the backing `Cursor` as well.
`Object`	`get(int index)` Returns the item for the given position.
`final Cursor`	`getCursor()` Returns the `Cursor` backing the adapter.
`final CursorMapper`	`getMapper()` Returns the `CursorMapper` used to convert `Cursor` rows into Objects.
`boolean`	`isClosed()` Returns true if the adapter, and hence the backing `Cursor`, is closed; false otherwise.
`boolean`	`isImmediateNotifySupported()` Returns true if the adapter pairs each underlying data change with a call to notify and false otherwise.
`final void`	`setMapper(CursorMapper mapper)` Sets the `CursorMapper` used to convert `Cursor` rows into Objects.
`int`	`size()` Returns the number of items in the adapter.
`Cursor`	`swapCursor(Cursor cursor)` Swap in a new Cursor, returning the old Cursor.

Protected methods
`final void`	`invalidateCache(int index)` Removes an item from the cache.
`final void`	`invalidateCache(int index, int count)` Removes `count` items starting at `index`.
`void`	`onCursorChanged()` Called whenever the cursor changes.
`void`	`onMapperChanged()` Called when `setMapper(CursorMapper)` is called and a different mapper is provided.

Inherited methods

From class


        
          androidx.leanback.widget.ObjectAdapter

`abstract Object`	`get(int position)` Returns the item for the given position.
`long`	`getId(int position)` Returns the id for the given position.
`final Presenter`	`getPresenter(Object item)` Returns the `Presenter` for the given item from the adapter.
`final PresenterSelector`	`getPresenterSelector()` Returns the presenter selector for this ObjectAdapter.
`final boolean`	`hasStableIds()` Returns true if the item ids are stable across changes to the underlying data.
`boolean`	`isImmediateNotifySupported()` Returns true if the adapter pairs each underlying data change with a call to notify and false otherwise.
`final void`	`notifyChanged()` Notifies UI that the underlying data has changed.
`final void`	`notifyItemMoved(int fromPosition, int toPosition)` Notifies UI that item at fromPosition has been moved to toPosition.
`final void`	`notifyItemRangeChanged(int positionStart, int itemCount, Object payload)` Notifies UI that some items has changed.
`final void`	`notifyItemRangeChanged(int positionStart, int itemCount)` Notifies UI that some items has changed.
`final void`	`notifyItemRangeInserted(int positionStart, int itemCount)` Notifies UI that new items has been inserted.
`final void`	`notifyItemRangeRemoved(int positionStart, int itemCount)` Notifies UI that some items that has been removed.
`void`	`onHasStableIdsChanged()` Called when `setHasStableIds(boolean)` is called and the status of stable ids has changed.
`void`	`onPresenterSelectorChanged()` Called when `setPresenterSelector(PresenterSelector)` is called and the PresenterSelector differs from the previous one.
`final void`	`registerObserver(ObjectAdapter.DataObserver observer)` Registers a DataObserver for data change notifications.
`final void`	`setHasStableIds(boolean hasStableIds)` Sets whether the item ids are stable across changes to the underlying data.
`final void`	`setPresenterSelector(PresenterSelector presenterSelector)` Sets the presenter selector.

CursorObjectAdapter

Summary

Inherited constants

Public constructors

Public methods

Protected methods

Inherited methods