swift编写简单的左右菜单栏 // // MenuViewController.swift // Menu // // Created by innovane on 14-6-23. // Copyright (c) 2014年 innovane. All rights reserved. // import UIKit let kICSDrawerControllerLeftViewInitialOffset : CGFloat = 60.0 let kICSDrawerControllerDrawerDepth : CGFloat = 200.0 enum ICSDr