Swift实现UIScrollView展示多个UIViewController

来源：互联网发布：淘宝哪家的男牛仔裤好编辑：程序博客网时间：2024/06/01 09:01

效果图：

----------FirstPageViewController-----------

    override func viewDidLoad()    {        super.viewDidLoad()                self.view.backgroundColor = UIColor.brownColor()            }

----------SecondPageViewController-----------

    override func viewDidLoad()    {        super.viewDidLoad()                self.view.backgroundColor = UIColor.purpleColor()    }

----------ThirdPageViewController-----------

    override func viewDidLoad()    {        super.viewDidLoad()                self.view.backgroundColor = UIColor.blueColor()    }

---------------PageViewController--------------------

////  PageControlViewController.swift//import UIKitclass PageControlViewController: UIViewController, UIScrollViewDelegate{    var pageControl: UIPageControl?    var scrollView: UIScrollView?        var isPageControlUsed = false        var screenFrame :CGRect?        override func viewDidLoad()    {        super.viewDidLoad()                self.title = "UIPageControl"        self.view.backgroundColor = UIColor.whiteColor()        screenFrame = UIScreen.mainScreen().bounds        let screenWidth = screenFrame!.width        let screenHeight = screenFrame!.height                var view = UIView(frame: CGRectMake(0, 0, screenWidth, 60))        view.backgroundColor = UIColor.whiteColor()        self.view.addSubview(view)                scrollView = UIScrollView(frame: CGRectMake(0, 60, screenWidth, screenHeight - 60))        pageControl = UIPageControl(frame: CGRectMake(0, screenHeight - 40, screenWidth, 40))        scrollView!.pagingEnabled = true                scrollView!.contentSize = CGSizeMake(screenWidth * 3, screenHeight - 60)        let firstViewController = FirstPageViewController()        firstViewController.view.frame = CGRectMake(0, 0, screenWidth, screenHeight - 60)        let secondViewController = SecondPageViewController()        secondViewController.view.frame = CGRectMake(screenWidth, 0, screenWidth, screenHeight - 60)        let thirdViewController = ThirdPageViewController()        thirdViewController.view.frame = CGRectMake(screenWidth * 2, 0, screenWidth, screenHeight - 60)                scrollView!.addSubview(firstViewController.view)        scrollView!.addSubview(secondViewController.view)        scrollView!.addSubview(thirdViewController.view)                scrollView!.delegate = self                self.view.addSubview(scrollView!)                pageControl!.numberOfPages = 3        pageControl!.currentPage = 0        pageControl!.addTarget(self, action: "pageDidChanged:", forControlEvents: UIControlEvents.ValueChanged)                self.view.addSubview(pageControl!)                installCodeBarBtn()    }        func pageDidChanged(obj : UIPageControl) -> Void    {        var currentPage = obj.currentPage        var frame = scrollView!.frame        frame.origin.x = (CGFloat)(currentPage) * frame.size.width                scrollView!.scrollRectToVisible(frame, animated: true)        isPageControlUsed = true    }        func scrollViewDidScroll(scrollView: UIScrollView)    {        if(!isPageControlUsed)        {            let pageWidth = scrollView.frame.size.width            let page = floor((scrollView.contentOffset.x - pageWidth/2)/pageWidth) + 1            pageControl!.currentPage = (Int)(page)        }    }        func scrollViewDidEndDecelerating(scrollView: UIScrollView)    {        isPageControlUsed = false    }    override func didReceiveMemoryWarning()    {        super.didReceiveMemoryWarning()    }        func installCodeBarBtn() -> Void    {        var rightBar = UIBarButtonItem(title: "Code", style: UIBarButtonItemStyle.Done, target: self, action: "toCodeViewPad")        self.navigationItem.rightBarButtonItem = rightBar    }        func toCodeViewPad() -> Void    {        let codeViewController = PageCodeViewController()        self.navigationController!.pushViewController(codeViewController, animated: true)    }}

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