public void SyncState(AbsListView view)
{
if (view.ChildCount > 0)
{
_trackedView = GetChild(view);
_trackedViewPrevTop = GetY();
_trackedViewPrevPosition = view.GetPositionForView(_trackedView);
}
}
/**
* Returns the position within the adapter's dataset for the view, where view is an adapter item or a descendant of an adapter item.
* Unlike {@link AdapterView#getPositionForView(android.view.View)}, returned position will reflect the position of the item given view is representing,
* by subtracting the header views count.
*
* @param absListView the ListView containing the view.
* @param view an adapter item or a descendant of an adapter item. This must be visible in given AdapterView at the time of the call.
*
* @return the position of the item in the AdapterView represented by given view, or {@link AdapterView#INVALID_POSITION} if the view does not
* correspond to a list item (or it is not visible).
*/
public static int getPositionForView(AbsListView absListView, View view)
{
int position = absListView.GetPositionForView(view);
if (absListView is ListView)
{
position -= ((ListView)absListView).HeaderViewsCount;
}
return(position);
}
public bool IsSafeToTrack(AbsListView view)
{
return(_trackedView != null && _trackedView.Parent == view && view.GetPositionForView(_trackedView) == _trackedViewPrevPosition);
}
//@Override
public int getPositionForView(View view)
{
return(mAbsListView.GetPositionForView(view));
}
