com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin类 参考

Public 成员函数
void	setViewTypeCount (int viewTypeCount)
void	markChildrenDirty ()
boolean	shouldRecycleViewType (int viewType)

包函数
void	clear ()
void	fillActiveViews (int childCount, int firstActivePosition)
View	getActiveView (int position)
View	getScrapView (int position)
void	addScrapView (View scrap)
void	scrapActiveViews ()
void	reclaimScrapViews (List< View > views)
void	setCacheColorHint (int color)

Private 成员函数
void	pruneScrapViews ()

Private 属性
RecyclerListener	mRecyclerListener
int	mFirstActivePosition
View[]	mActiveViews = new View[0]
ArrayList< View >[]	mScrapViews
int	mViewTypeCount
ArrayList< View >	mCurrentScrap

详细描述

The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the start of a layout. By construction, they are displaying current information. At the end of layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that could potentially be used by the adapter to avoid allocating views unnecessarily.

参见

android.widget.AbsListView::setRecyclerListener(android.widget.AbsListView.RecyclerListener)

android.widget.AbsListView.RecyclerListener

成员函数说明

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.addScrapView ( View  scrap)

inlinepackage

Put a view into the ScapViews list. These views are unordered.

参数

scrap

The view to add

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.clear ( )

inlinepackage

Clears the scrap heap.

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.fillActiveViews ( int  childCount, int  firstActivePosition  )

inlinepackage

Fill ActiveViews with all of the children of the AbsListView.

参数

childCount	The minimum number of views mActiveViews should hold
firstActivePosition	The position of the first view that will be stored in mActiveViews

View com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.getActiveView ( int  position)

inlinepackage

Get the view corresponding to the specified position. The view will be removed from mActiveViews if it is found.

参数

position

The position to look up in mActiveViews

返回

The view if it is found, null otherwise

View com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.getScrapView ( int  position)

inlinepackage

返回

A view from the ScrapViews collection. These are unordered.

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.markChildrenDirty ( )

inline

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.pruneScrapViews ( )

inlineprivate

Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. (This can happen if an adapter does not recycle its views).

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.reclaimScrapViews ( List< View >  views)

inlinepackage

Puts all views in the scrap heap into the supplied list.

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.scrapActiveViews ( )

inlinepackage

Move all views remaining in mActiveViews to mScrapViews.

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.setCacheColorHint ( int  color)

inlinepackage

Updates the cache color hint of all known views.

参数

color

The new cache color hint.

void com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.setViewTypeCount ( int  viewTypeCount)

inline

boolean com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.shouldRecycleViewType ( int  viewType)

inline

类成员变量说明

View [] com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.mActiveViews = new View[0]

private

Views that were on screen at the start of layout. This array is populated at the start of layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. Views in mActiveViews represent a contiguous range of Views, with position of the first view store in mFirstActivePosition.

ArrayList<View> com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.mCurrentScrap

private

int com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.mFirstActivePosition

private

The position of the first view stored in mActiveViews.

RecyclerListener com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.mRecyclerListener

private

ArrayList<View> [] com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.mScrapViews

private

Unsorted views that can be used by the adapter as a convert view.

int com.ab.view.pullview.AbMultiColumnBaseAbsListView.RecycleBin.mViewTypeCount

private

---

该类的文档由以下文件生成:

• src/com/ab/view/pullview/AbMultiColumnBaseAbsListView.java