CursorObjectAdapter - Android SDK

public class

CursorObjectAdapter

extends ObjectAdapter

java.lang.Object
↳	android.support.v17.leanback.widget.ObjectAdapter
	↳	android.support.v17.leanback.widget.CursorObjectAdapter

Class Overview

An ObjectAdapter implemented with a Cursor.

Summary

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Inherited Constants

From class android.support.v17.leanback.widget.ObjectAdapter

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.
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.

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Inherited Methods

From class android.support.v17.leanback.widget.ObjectAdapter

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Constructors

public CursorObjectAdapter (PresenterSelector presenterSelector)

Constructs an adapter with the given PresenterSelector.

public CursorObjectAdapter (Presenter presenter)

Constructs an adapter that uses the given Presenter for all items.

public CursorObjectAdapter ()

Constructs an adapter.

Public Methods

public void changeCursor (Cursor cursor)

Changes the underlying cursor to a new cursor. If there is an existing cursor it will be closed if it is different than the new cursor.

Parameters

cursor	The new cursor to be used.

public void close ()

Closes this adapter, closing the backing Cursor as well.

public Object get (int index)

Returns the item for the given position.

public final Cursor getCursor ()

Returns the Cursor backing the adapter.

public final CursorMapper getMapper ()

Returns the CursorMapper used to convert Cursor rows into Objects.

public boolean isClosed ()

Returns true if the adapter, and hence the backing Cursor, is closed; false otherwise.

public final void setMapper (CursorMapper mapper)

Sets the CursorMapper used to convert Cursor rows into Objects.

public int size ()

Returns the number of items in the adapter.

public Cursor swapCursor (Cursor cursor)

Swap in a new Cursor, returning the old Cursor. Unlike changeCursor(Cursor), the returned old Cursor is not closed.

Parameters

cursor	The new cursor to be used.

Protected Methods

protected final void invalidateCache (int index)

Removes an item from the cache. This will force the item to be re-read from the data source the next time (@link #get(int)} is called.

protected final void invalidateCache (int index, int count)

Removes count items starting at index.

protected void onCursorChanged ()

Called whenever the cursor changes.

protected void onMapperChanged ()

Called when setMapper(CursorMapper) is called and a different mapper is provided.

Results

Interfaces

Classes

CursorObjectAdapter

Class Overview

Summary

Public Constructors

public CursorObjectAdapter (PresenterSelector presenterSelector)

public CursorObjectAdapter (Presenter presenter)

public CursorObjectAdapter ()

Public Methods

public void changeCursor (Cursor cursor)

Parameters

public void close ()

public Object get (int index)

public final Cursor getCursor ()

public final CursorMapper getMapper ()

public boolean isClosed ()

public final void setMapper (CursorMapper mapper)

public int size ()

public Cursor swapCursor (Cursor cursor)

Parameters

Protected Methods

protected final void invalidateCache (int index)

protected final void invalidateCache (int index, int count)

protected void onCursorChanged ()

protected void onMapperChanged ()