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ObjectAdapter.DataObserver

public static abstract class ObjectAdapter.DataObserver
extends Object

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


A DataObserver can be notified when an ObjectAdapter's underlying data changes. Separate methods provide notifications about different types of changes.

Summary

Public constructors

ObjectAdapter.DataObserver()

Public methods

void onChanged()

Called whenever the ObjectAdapter's data has changed in some manner outside of the set of changes covered by the other range-based change notification methods.

void onItemRangeChanged(int positionStart, int itemCount)

Called when a range of items in the ObjectAdapter has changed.

void onItemRangeInserted(int positionStart, int itemCount)

Called when a range of items is inserted into the ObjectAdapter.

void onItemRangeRemoved(int positionStart, int itemCount)

Called when a range of items is removed from the ObjectAdapter.

Inherited methods

From class java.lang.Object

Public constructors

ObjectAdapter.DataObserver

ObjectAdapter.DataObserver ()

Public methods

onChanged

void onChanged ()

Called whenever the ObjectAdapter's data has changed in some manner outside of the set of changes covered by the other range-based change notification methods.

onItemRangeChanged

void onItemRangeChanged (int positionStart, 
                int itemCount)

Called when a range of items in the ObjectAdapter has changed. The basic ordering and structure of the ObjectAdapter has not changed.

Parameters
positionStart int: The position of the first item that changed.
itemCount int: The number of items changed.

onItemRangeInserted

void onItemRangeInserted (int positionStart, 
                int itemCount)

Called when a range of items is inserted into the ObjectAdapter.

Parameters
positionStart int: The position of the first inserted item.
itemCount int: The number of items inserted.

onItemRangeRemoved

void onItemRangeRemoved (int positionStart, 
                int itemCount)

Called when a range of items is removed from the ObjectAdapter.

Parameters
positionStart int: The position of the first removed item.
itemCount int: The number of items removed.

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