ios - 自动移动页面控制点

Question

我实现了页面 Controller ..快速自动移动页面

但我的问题是页面 Controller 点没有得到改变不表示页面任何人帮助我解决这个问题 这是我的代码

 override func viewDidLoad() {
        super.viewDidLoad()

        UpdateCounter = 0

        arrPageTitle = ["In SignUp screen user can able to input the first name, last name, emailid and password.", "After SignUp email verification link has been send to his mail then add basic profile information and sport preferences.", "In Profile setting can view profile, privacy and notifications, friends, account and championships won."];

        self.pageViewController = self.storyboard?.instantiateViewController(withIdentifier: "myPageviewcontroller") as! UIPageViewController
        self.pageViewController.dataSource = self
        let initialContentviewcontroller = self.getViewControllerAtIndex(index: 0) as PageContentViewController
        let viewcontrollers = NSArray(object: initialContentviewcontroller)
        self.pageViewController.setViewControllers(viewcontrollers as? [UIViewController], direction: UIPageViewControllerNavigationDirection.forward, animated: true, completion: nil)

        self.pageViewController.view.frame = CGRect(x: 0, y: 50, width:self.view.frame.width,height: 350)
        //pagecontroller.delegate = self
        pagecontroller.numberOfPages = arrPageTitle.count
        pagecontroller.currentPage = 0;

        self.addChildViewController(self.pageViewController)
        self.view.addSubview(self.pageViewController.view)
        self.pageViewController.didMove(toParentViewController: self)



        timer = Timer.scheduledTimer(timeInterval: 2.0, target: self, selector: (#selector(StartUpPage.advancePage)), userInfo: nil, repeats: true)

    }

    func getViewControllerAtIndex(index: Int) -> PageContentViewController
    {
        // Create a new view controller and pass suitable data.

        let pageContentViewController = self.storyboard?.instantiateViewController(withIdentifier: "PageContentViewController") as! PageContentViewController
        pageContentViewController.strTitle = "\(arrPageTitle[index])"
        pageContentViewController.pageIndex = index
        return pageContentViewController
    }


    func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?
    {


        let viewController = viewController as! PageContentViewController
        var index = viewController.pageIndex as Int
        if(index == 0 || index == NSNotFound)
        { return nil
        }

        index -= 1

        return self.getViewControllerAtIndex(index: index)

    }



    public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?
    {
        let viewController = viewController as! PageContentViewController
        var index = viewController.pageIndex as Int
        if(( index == NSNotFound))
        {
            return nil
        }

        index += 1
        if(index == arrPageTitle.count)
        {

            return nil
        }

            return self.getViewControllerAtIndex(index: index)


    }


    public func presentationCount(for pageViewController: UIPageViewController) -> Int
    {
        return arrPageTitle.count

    }


    public func presentationIndex(for pageViewController: UIPageViewController) -> Int
    {
        let viewController = self.getViewControllerAtIndex(index: 0)
        let index = viewController.pageIndex as Int
        return index

    }
    func advancePage ()
    {
        UpdateCounter += 1

        if  UpdateCounter > 2 {
            UpdateCounter = 0

        }
        var nextviewcontroller = self.getViewControllerAtIndex(index: UpdateCounter)
        if (nextviewcontroller .isEqual(nil)) {
            UpdateCounter = 0

            nextviewcontroller = self.getViewControllerAtIndex(index: UpdateCounter)
        }

        let startingViewControllers = [nextviewcontroller]
        pageViewController.setViewControllers(startingViewControllers, direction: UIPageViewControllerNavigationDirection.forward, animated: true, completion: nil)
        pagecontroller.currentPage = UpdateCounter

        pagecontroller.numberOfPages = 3
        pagecontroller.currentPage = 0
        pagecontroller.addTarget(self, action: #selector(pageControlTapHandler(sender:)), for: .touchUpInside)


        }

任何人都可以帮助我如何在自动滚动页面时解决这个问题..pagecontroll 点也被移动提前致谢

Answer 1

public func presentationIndex(for pageViewController: UIPageViewController) -> Int
{
   let viewController = pageViewController.viewControllers?[0] as! PageContentViewController

    let index = viewController.pageIndex
    pagecontroller.currentPage = index
    UIPageControl.appearance().pageIndicatorTintColor = UIColor.lightGray
    UIPageControl.appearance().currentPageIndicatorTintColor = UIColor.red


    return index

}

添加此代码这是页面 Controller 的委托(delegate)方法它会工作正常快乐代码:)