swift2.0学习笔记之使用第三方库KGFloatingDrawer实现抽屉

Xcode中使用第三方函数库一般使用的是cocoapods，所以最好先安装一个cocoapods，这样方便使用第三方函数库。

cocoapods的安装方式在下面的链接中http://blog.csdn.net/iunion/article/details/17010267

首先在在AppDelegate中引入import  KGFloatingDrawer

然后添加如下代码：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject:AnyObject]?) -> Bool {

  window =UIWindow(frame: UIScreen.mainScreen().bounds)

        ／／设置根视图

        window?.rootViewController =drawerViewController

        self.drawerViewController.backgroundImage=UIImage(named:"bg")

        

        window?.makeKeyAndVisible()

        return true

    }

 private var _drawerViewController:KGDrawerViewController?

    var drawerViewController: KGDrawerViewController {

        get {

            if let viewController =_drawerViewController {

                return viewController

            }

            returnprepareDrawerViewController()

        }

    }

    

    func prepareDrawerViewController() -> KGDrawerViewController {

        let drawerViewController = KGDrawerViewController()

        

        drawerViewController.centerViewController =drawerSettingsViewController()

        

        drawerViewController.leftViewController =leftViewController()

        

        

        _drawerViewController = drawerViewController

                let animator=_drawerViewController?.animator

                animator?.animationDuration=0.7

                animator?.initialSpringVelocity=1.0

                animator?.springDamping=5.0

        

        return drawerViewController

    }

    

    private func drawerStoryboard() ->UIStoryboard {

        let storyboard = UIStoryboard(name: "Main", bundle: nil)

        return storyboard

    }

    

    private func viewControllerForStoryboardId(storyboardId:String) -> UIViewController {

        let viewController: UIViewController = drawerStoryboard().instantiateViewControllerWithIdentifier(storyboardId)

        return viewController

    }

    ／／主视图

    func drawerSettingsViewController() -> UIViewController {

        let viewController =viewControllerForStoryboardId("center")

        return viewController

    }

／／左视图

    private func leftViewController() ->UIViewController {

        let viewController =viewControllerForStoryboardId("left")

        return viewController

    }

    ／／点击按钮从左边出来

    func toggleLeftDrawer(sender:AnyObject, animated:Bool) {

        _drawerViewController?.toggleDrawer(.Left, animated:true, complete: { (finished) -> Void in

            // do nothing

        })

    }

    ／／点击按钮从右边出来

    func toggleRightDrawer(sender:AnyObject, animated:Bool) {

        _drawerViewController?.toggleDrawer(.Right, animated:true, complete: { (finished) -> Void in

            // do nothing

        })

    }

    

    private var _centerViewController:UIViewController?

    var centerViewController: UIViewController {

        get {

            if let viewController =_centerViewController {

                return viewController

            }

            returndrawerSettingsViewController()

        }

        set {

            if let drawerViewController =_drawerViewController {

                drawerViewController.closeDrawer(drawerViewController.currentlyOpenedSide, animated:true) { finished in }

                if drawerViewController.centerViewController != newValue {

                    drawerViewController.centerViewController = newValue

                }

            }

            _centerViewController = newValue

        }

    }

    

点击按钮的方法

 @IBAction func btnlist(sender: AnyObject) {

        let appDelegate = UIApplication.sharedApplication().delegateas! AppDelegate

        appDelegate.drawerViewController.toggleDrawer(KGDrawerSide.Left, animated:true) { (finished) -> Void

            in

        }

    }