kankan.wheel.widget
Class WheelRecycle

java.lang.Object
  kankan.wheel.widget.WheelRecycle

public class WheelRecycle
extends java.lang.Object

Recycle stores wheel items to reuse.

Field Summary

private java.util.List<View>	emptyItems
private java.util.List<View>	items
private WheelView	wheel

Constructor Summary

WheelRecycle(WheelView wheel)
Constructor

Method Summary

private java.util.List<View>	addView(View view, java.util.List<View> cache) Adds view to specified cache.
void	clearAll() Clears all views
private View	getCachedView(java.util.List<View> cache) Gets view from specified cache.
View	getEmptyItem() Gets empty item view
View	getItem() Gets item view
int	recycleItems(LinearLayout layout, int firstItem, ItemsRange range) Recycles items from specified layout.
private void	recycleView(View view, int index) Adds view to cache.

Methods inherited from class java.lang.Object

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

Field Detail

items

private java.util.List<View> items

emptyItems

private java.util.List<View> emptyItems

wheel

private WheelView wheel

Constructor Detail

WheelRecycle

public WheelRecycle(WheelView wheel)

Constructor

Parameters:

wheel - the wheel view

Method Detail

recycleItems

public int recycleItems(LinearLayout layout,
                        int firstItem,
                        ItemsRange range)

Recycles items from specified layout. There are saved only items not included to specified range. All the cached items are removed from original layout.

Parameters:

layout - the layout containing items to be cached

firstItem - the number of first item in layout

range - the range of current wheel items

Returns:

the new value of first item number

getItem

public View getItem()

Gets item view

Returns:

the cached view

getEmptyItem

public View getEmptyItem()

Gets empty item view

Returns:

the cached empty view

clearAll

public void clearAll()

Clears all views

addView

private java.util.List<View> addView(View view,
                                     java.util.List<View> cache)

Adds view to specified cache. Creates a cache list if it is null.

Parameters:

view - the view to be cached

cache - the cache list

Returns:

the cache list

recycleView

private void recycleView(View view,
                         int index)

Adds view to cache. Determines view type (item view or empty one) by index.

Parameters:

view - the view to be cached

index - the index of view

getCachedView

private View getCachedView(java.util.List<View> cache)

Gets view from specified cache.

Parameters:

cache - the cache

Returns:

the first view from cache.