io.realm

Class RealmBaseAdapter<T extends RealmObject>

java.lang.Object

android.widget.BaseAdapter

io.realm.RealmBaseAdapter<T>

All Implemented Interfaces:

android.widget.Adapter, android.widget.ListAdapter, android.widget.SpinnerAdapter

public abstract class RealmBaseAdapter<T extends RealmObject>
extends android.widget.BaseAdapter

The RealmBaseAdapter class is an abstract utility class for binding UI elements to Realm data, much like an CursorAdapter.

This adapter will automatically handle any updates to its data and call BaseAdapter.notifyDataSetChanged() as appropriate.

The RealmAdapter will stop receiving updates if the Realm instance providing the RealmResults is closed. Trying to access read objects, will at this point also result in a RealmException.

Field Summary

Fields inherited from interface android.widget.Adapter

IGNORE_ITEM_VIEW_TYPE, NO_SELECTION

Constructor Summary

Constructors

Constructor and Description
RealmBaseAdapter(android.content.Context context, RealmResults<T> realmResults, boolean automaticUpdate)

Method Summary

Modifier and Type	Method and Description
int	getCount() Returns how many items are in the data set.
T	getItem(int i) Returns the item associated with the specified position.
long	getItemId(int i) Returns the current ID for an item.
void	updateRealmResults(RealmResults<T> queryResults) Updates the RealmResults associated to the Adapter.

Methods inherited from class android.widget.BaseAdapter

areAllItemsEnabled, getDropDownView, getItemViewType, getViewTypeCount, hasStableIds, isEmpty, isEnabled, notifyDataSetChanged, notifyDataSetInvalidated, registerDataSetObserver, unregisterDataSetObserver

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface android.widget.Adapter

getView

Constructor Detail

RealmBaseAdapter

public RealmBaseAdapter(android.content.Context context,
                        RealmResults<T> realmResults,
                        boolean automaticUpdate)

Method Detail

getCount

public int getCount()

Returns how many items are in the data set.

Returns:

count of items.

getItem

public T getItem(int i)

Returns the item associated with the specified position.

Parameters:

i - index of item whose data we want.

Returns:

the item at the specified position.

getItemId

public long getItemId(int i)

Returns the current ID for an item. Note that item IDs are not stable so you cannot rely on the item ID being the same after BaseAdapter.notifyDataSetChanged() or updateRealmResults(RealmResults) has been called.

Parameters:

i - index of item in the adapter.

Returns:

current item ID.

updateRealmResults

public void updateRealmResults(RealmResults<T> queryResults)

Updates the RealmResults associated to the Adapter. Useful when the query has been changed. If the query does not change you might consider using the automaticUpdate feature.

Parameters:

queryResults - the new RealmResults coming from the new query.