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)); }