public Parcelable onSaveInstanceState(Parcelable parcelable) {

		SavedState ss = new SavedState(parcelable);
		ss.lastOpenPosition = this.lastOpenPosition;
		ss.openItems = this.openItems;
		return ss;
	}
Closes the current open item.
If it is current visible it will be closed with an animation.

@return true if an item was closed, false otherwise
library/src/main/java/com/tjerkw/slideexpandable/library/AbstractSlideExpandableListAdapter.java