kankan.wheel.widget.adapters
Class AbstractWheelAdapter

java.lang.Object
  kankan.wheel.widget.adapters.AbstractWheelAdapter

All Implemented Interfaces:

WheelViewAdapter

Direct Known Subclasses:

AbstractWheelTextAdapter

public abstract class AbstractWheelAdapter
extends java.lang.Object
implements WheelViewAdapter

Abstract Wheel adapter.

Field Summary

private java.util.List<DataSetObserver>

datasetObservers

Constructor Summary

AbstractWheelAdapter()

Method Summary

View	getEmptyItem(View convertView, ViewGroup parent) Get a View that displays an empty wheel item placed before the first or after the last wheel item.
protected void	notifyDataChangedEvent() Notifies observers about data changing
protected void	notifyDataInvalidatedEvent() Notifies observers about invalidating data
void	registerDataSetObserver(DataSetObserver observer) Register an observer that is called when changes happen to the data used by this adapter.
void	unregisterDataSetObserver(DataSetObserver observer) Unregister an observer that has previously been registered

Methods inherited from class java.lang.Object

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

Methods inherited from interface kankan.wheel.widget.adapters.WheelViewAdapter

getItem, getItemsCount

Field Detail

datasetObservers

private java.util.List<DataSetObserver> datasetObservers

Constructor Detail

AbstractWheelAdapter

public AbstractWheelAdapter()

Method Detail

getEmptyItem

public View getEmptyItem(View convertView,
                         ViewGroup parent)

Description copied from interface: WheelViewAdapter

Get a View that displays an empty wheel item placed before the first or after the last wheel item.

Specified by:

getEmptyItem in interface WheelViewAdapter

Parameters:

convertView - the old view to reuse if possible

parent - the parent that this view will eventually be attached to

Returns:

the empty item View

registerDataSetObserver

public void registerDataSetObserver(DataSetObserver observer)

Description copied from interface: WheelViewAdapter

Register an observer that is called when changes happen to the data used by this adapter.

Specified by:

registerDataSetObserver in interface WheelViewAdapter

Parameters:

observer - the observer to be registered

unregisterDataSetObserver

public void unregisterDataSetObserver(DataSetObserver observer)

Description copied from interface: WheelViewAdapter

Unregister an observer that has previously been registered

Specified by:

unregisterDataSetObserver in interface WheelViewAdapter

Parameters:

observer - the observer to be unregistered

notifyDataChangedEvent

protected void notifyDataChangedEvent()

Notifies observers about data changing

notifyDataInvalidatedEvent

protected void notifyDataInvalidatedEvent()

Notifies observers about invalidating data