UIPageViewController

使用PageViewController创建引导页

数据源

var headers = ["页面1", "页面2", "页面3"]
var footers = ["这里是页面1，具体内容如下", "这里是页面2，具体内容如下，是一个好人的东莨菪碱", "这里是页面3"]
var imageNames = ["iOS", "swift", "beginner"]

代理方法

遵循UIPageViewControllerDataSource协议

func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
    //取得当前控制器index
    var index = (viewController as! GuideContentViewController).index
    //index - 1
    index -= 1
    //返回前一个控制器
    return getViewController(at: index)
}

func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
    //取得当前控制器index
    var index = (viewController as! GuideContentViewController).index
    //index - 1
    index += 1
    //返回后一个控制器
    return getViewController(at: index)
}

获取控制器方法

//注意设置stroyBoard中contViewController的storyBoardID

func getViewController(at index: Int) -> GuideContentViewController? {
    //判断Index是否在区间范围内
    if case 0..<headers.count = index{
        //根据storyboard中的控制器id创建viewcontroller
        if let contentVC = storyboard?.instantiateViewController(withIdentifier: "GuideContentController") as? GuideContentViewController {
            //如果创建成功
            //传入值
            contentVC.headerStr = headers[index]
            contentVC.footerStr = footers[index]
            contentVC.imageName = imageNames[index]
            contentVC.index = index
            return contentVC
        }
    }
    
    return nil
}

设置起始页

override func viewDidLoad() {
    super.viewDidLoad()
    
    self.view.backgroundColor = UIColor.white
    self.dataSource = self
    if let startVC = getViewController(at: 0) {
        setViewControllers([startVC], direction: .forward, animated: true, completion: nil)
    }
}

内容页

指定变量，控件，以及在页面加载时赋值即可。

@IBOutlet weak var headerLabel: UILabel!
@IBOutlet weak var imageView: UIImageView!
@IBOutlet weak var footerLabel: UILabel!
var index = 0
var headerStr = ""
var footerStr = ""
var imageName = ""



override func viewDidLoad() {
    super.viewDidLoad()
    headerLabel.text = headerStr
    footerLabel.text = footerStr
    imageView.image = UIImage(named: imageName)
    // Do any additional setup after loading the view.
}