example function for reloading sections of ASTableViews

asyncDataReload.swift

func dataSource(dataSource: ASTableViewDataSource, removedSections: NSIndexSet?, insertedSections: NSIndexSet?, movedSections: [MovedIndex]?) {
        dispatch_async(dispatch_get_main_queue()) {
            self.tableView.ins_endPullToRefresh()
        }
        
        tableView.beginUpdates()

        var del = NSMutableIndexSet()
        var add = NSMutableIndexSet()
        
        if let remove = removedSections {
            del.addIndexes(remove)
        }
        
        if let inserts = insertedSections {
            add.addIndexes(inserts)
        }
        
        if del.count == 0 && add.count == 0 {
            if let moves = movedSections {
                for move in moves.reverse() {
                    del.addIndex(move.oldIndex)
                    add.addIndex(move.newIndex)
                }
            }    
        }
        
        if del.count > 0 {
            tableView.deleteSections(del, withRowAnimation: .None)
        }
        
        if add.count > 0 {
            tableView.insertSections(add, withRowAnimation: .None)
        }
        
        tableView.endUpdates()
        
        if let context = self.batchContext {
            context.completeBatchFetching(true)
            self.batchContext = nil
        }
        
        delegate?.ViewControllerDidReloadLoadData?(self)
    }