Swift iOS：如何使用按钮触发下一页

我有一个QuizViewController，它扩展了UIViewController，

UIPageControllerDelegate

，还有一个

UIPageViewControllerDataSource

内置QuizViewController.swift

private var pageViewController: UIPageViewController?

private func createPageViewController() {
       let pageController = self.storyboard!.instantiateViewControllerWithIdentifier("QuizPageViewController") as! UIPageViewController
       pageController.dataSource = self

       if pageInfo.count > 0 {
           let firstController = getItemController(0)!
           let startingViewControllers: NSArray = [firstController]
           pageController.setViewControllers(startingViewControllers as? [UIViewController], direction: UIPageViewControllerNavigationDirection.Forward, animated: false, completion: nil)
       }

       pageViewController = pageController
       addChildViewController(pageViewController!)
       self.view.addSubview(pageViewController!.view)
       pageViewController!.didMoveToParentViewController(self)
   }

   private func getItemController(itemIndex: Int) -> QuizPageItem? {
       if itemIndex < pageInfo.count {
           let CurrentQuizPageItem = self.storyboard!.instantiateViewControllerWithIdentifier("QuizPageItem") as! QuizPageItem
           CurrentQuizPageItem.itemIndex = itemIndex
           CurrentQuizPageItem.thisPageInfo = pageInfo[itemIndex]
           return CurrentQuizPageItem
       }

       return nil
   }

   /*
       PageView Delegates
   */
   func pageViewController(pageViewController: UIPageViewController, viewControllerBeforeViewController viewController: UIViewController) -> UIViewController? {

       let CurrentQuizPageItem = viewController as! QuizPageItem

       if CurrentQuizPageItem.itemIndex > 0 {
           return getItemController(CurrentQuizPageItem.itemIndex - 1)
       }

       return nil
   }

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

       let CurrentQuizPageItem = viewController as! QuizPageItem

       if CurrentQuizPageItem.itemIndex + 1 < pageInfo.count {
           return getItemController(CurrentQuizPageItem.itemIndex + 1)
       }

       return nil
   }

当这个实例化发生时，它还为QuizPageItem创建了首页

QuizPageItem是Main.storyboard中最右边的视图

因此，如果你看到这两个模型，它们都是QuizPageItems

第一个模型的itemIndex应为0

第二个模型的itemIndex应为1

       let CurrentQuizPageItem = self.storyboard!.instantiateViewControllerWithIdentifier("QuizPageItem") as! QuizPageItem
       CurrentQuizPageItem.itemIndex = itemIndex

我收到的大多数答案都建议通过QuizViewController来解决这个问题。QuizViewController就是我的Main.storyboard中最左边的视图

但是，按钮位于QuizPageItem中，无法通过QuizViewController访问

我想知道如何连接QuizPageItem中的“后退/下一步”按钮，以执行在QuizViewController中控制的分页，前提是我在Main.storyboard中连接各种视图的方式是正确的

同时，我允许当前在Main.storyboard中连接各种视图的方式不理想的可能性

如果是，请建议另一种方法

这是我遵循的教程，以达到我目前所在的位置

更新2

---

我很抱歉，我被认为是在争论。我真的很想学习如何做到这一点。我很确定我缺乏一些基础知识，因此我无法理解迈克尔·道特曼的答案

我假设QuizViewController中有一个函数将触发翻页

我不确定这个函数是什么

我知道这些功能在按下按钮时会被触发

在QuizPageItem类中有以下内容

 @IBAction func pageBackButton(sender: AnyObject) {

 }

 @IBAction func pageNextButton(sender: AnyObject) {
 }

但是，它们不在QuizViewController类中，而是在QuizPageItem类中

我应该把setViewController方法放在QuizPageItem类的这两个函数中吗

如果是这样，我甚至如何从QuizPageItem类内部访问QuizViewController实例

更新3:

我的文件结构是

• 奎兹维控制器
• QuizPageItem.swift

QuizViewController控制您看到的QuizPageItem。QuizPageItem表示实体模型设计的不同视图

更新4:

马特的回答帮助我理解了这个我一开始完全不熟悉的第一反应者

当我试图实现它时，我遇到了这个错误

我在谷歌上搜索了一下，试图补救，但毫无效果

我一直在触发这个错误

附件是

QuizViewPageItemController.swift的代码片段

import UIKit
class QuizPageItemViewController: UIViewController, CheckboxDelegate {

    @IBOutlet weak var pageHeadingLabel: UILabel!
    @IBOutlet weak var pageInstructionLabel: UILabel!
    @IBOutlet weak var pageProgressView: UIProgressView!
    @IBOutlet weak var pageQuestionLabel: UILabel!
    @IBOutlet weak var pageAnswerView: UIView!
    @IBOutlet weak var pageBackButton: UIButton!
    @IBOutlet weak var pageNextButton: UIButton!
    let pageNo: Int 
    let maxPageNo: Int
    let thisPageInfo: [String]

    let interestsList = [
        "Blue Chips", "Small Caps", "Pharmaceuticals", "Agriculture",
        "Telecommunications", "Manufacturing", "Finance", "Banks",
        "Retail", "Travel", "Airlines", "Tourism"]

    init(pageNo: Int, maxPageNo: Int, thisPageInfo: [String]) {
        self.pageNo = pageNo
        self.maxPageNo = maxPageNo
        self.thisPageInfo = thisPageInfo

        super.init(nibName: nil, bundle: nil)
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        self.pageBackButton.hidden = pageNo == 0
        self.pageNextButton.hidden = pageNo == maxPageNo
        pageHeadingLabel.text = thisPageInfo[0]
        pageInstructionLabel.text = thisPageInfo[1]
        pageQuestionLabel.text = thisPageInfo[2]

        if thisPageInfo[0] == "Welcome" {
            createCheckboxes()
            pageProgressView.setProgress(0.33, animated: true)
        } else if thisPageInfo[0] == "Awesome!" {
            createSlider()
            pageProgressView.setProgress(0.67, animated: true)
        } else if thisPageInfo[0] == "Almost there..." {
            createSlider()
            pageProgressView.setProgress(0.95, animated: true)
        }
    }

    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func createCheckboxes() {
        let fWidth = (self.view.frame.width - 40) / 2
        var frame = CGRectMake(0, 0, fWidth, 40)
        var contentSize = CGRectMake(0, 0, self.view.frame.width - 40, 0)

        for (var counter = 0; counter < interestsList.count; counter++) {
            let checkbox = Checkbox(frame: frame, title: interestsList[counter], selected: false)
            checkbox.mDelegate = self
            checkbox.tag = counter
            checkbox.backgroundColor = UIColor.redColor()

            if counter % 2 == 0 {
                frame.origin.x += fWidth
            } else{
                frame.origin.x -= fWidth
                frame.origin.y += frame.size.height
                contentSize.size.height += frame.size.height
            }

            checkbox.titleLabel?.adjustsFontSizeToFitWidth = true
            pageAnswerView.addSubview(checkbox)
        }
    }

    func didSelectCheckbox(state: Bool, identifier: Int, title: String) {
        print("checkbox '\(title)' has state \(state)")
    }

    func createSlider() {
        let slider = UISlider(frame:CGRectMake(0, 20, self.view.frame.width - 40, 20))
        slider.minimumValue = 0
        slider.maximumValue = 10
        slider.continuous = true
        slider.tintColor = ChatQColours().chatQBlue
        slider.value = 5
        //        slider.addTarget(self, action: "sliderValueDidChange:", forControlEvents: .ValueChanged)
        pageAnswerView.addSubview(slider)

        let leftlabel = UILabel(frame: CGRectMake(0, 40, 0, 0))
        leftlabel.text = "Strongly Avoid"
        leftlabel.sizeToFit()
        pageAnswerView.addSubview(leftlabel)

        let rightlabel = UILabel(frame: CGRectMake(0, 40, 0, 0))
        rightlabel.text = "Strongly Prefer"
        rightlabel.sizeToFit()
        rightlabel.frame.origin.x = slider.frame.width - rightlabel.frame.width
        pageAnswerView.addSubview(rightlabel)
    }
}

导入UIKit
类QuizPageItemViewController:UIViewController，CheckboxDelegate{
@IBVAR页面标题标签：UILabel！
@IBOUTLE弱var页面说明标签：UILabel！
@IBVAR页面进度视图：UIProgressView！
@IBVAR弱页面问题标签：UILabel！
@IBVAR页面应答视图：UIView！
@IBMOutlet弱var pageBackButton:UIButton！
@IBOUTLE弱var pageNextButton:UIButton！
让pageNo:Int
让maxPageNo:Int
让thisPageInfo:[字符串]
让兴趣列表=[
“蓝筹股”、“小盘股”、“制药”、“农业”，
“电信”、“制造”、“金融”、“银行”，
“零售”、“旅游”、“航空公司”、“旅游业”]
初始化（pageNo:Int，maxPageNo:Int，thisPageInfo:[字符串]）{
self.pageNo=pageNo
self.maxPageNo=maxPageNo
self.thisPageInfo=thisPageInfo
super.init（nibName:nil，bundle:nil）
}
必需的初始化？（编码器aDecoder:NSCoder）{
fatalError（“初始化（编码者：）尚未实现”）
}
重写func viewDidLoad（）{
super.viewDidLoad（）
self.pageBackButton.hidden=pageNo==0
self.pageNextButton.hidden=pageNo==maxPageNo
pageHeadingLabel.text=此页面信息[0]
pageInstructionLabel.text=此页面信息[1]
pageQuestionLabel.text=此页面信息[2]
如果thisPageInfo[0]=“欢迎”{
createCheckboxes（）
pageProgressView.setProgress（0.33，动画：true）
}否则，如果thisPageInfo[0]=“太棒了！”{
createSlider（）
pageProgressView.setProgress（0.67，动画：true）
}否则，如果thisPageInfo[0]=“差不多了…”{
createSlider（）
pageProgressView.setProgress（0.95，动画：true）
}
}
覆盖功能视图显示（动画：Bool）{
super.viewdide显示（动画）
}
重写函数didReceiveMemoryWarning（）{
超级。我收到了记忆警告（）
//处置所有可以重新创建的资源。
}
func createcheckbox（）{
设fWidth=（self.view.frame.width-40）/2
var frame=CGRectMake（0，0，fWidth，40）
var contentSize=CGRectMake（0,0，self.view.frame.width-40,0）
对于（变量计数器=0；计数器import UIKit
class QuizPageItemViewController: UIViewController, CheckboxDelegate {

    @IBOutlet weak var pageHeadingLabel: UILabel!
    @IBOutlet weak var pageInstructionLabel: UILabel!
    @IBOutlet weak var pageProgressView: UIProgressView!
    @IBOutlet weak var pageQuestionLabel: UILabel!
    @IBOutlet weak var pageAnswerView: UIView!
    @IBOutlet weak var pageBackButton: UIButton!
    @IBOutlet weak var pageNextButton: UIButton!
    let pageNo: Int 
    let maxPageNo: Int
    let thisPageInfo: [String]

    let interestsList = [
        "Blue Chips", "Small Caps", "Pharmaceuticals", "Agriculture",
        "Telecommunications", "Manufacturing", "Finance", "Banks",
        "Retail", "Travel", "Airlines", "Tourism"]

    init(pageNo: Int, maxPageNo: Int, thisPageInfo: [String]) {
        self.pageNo = pageNo
        self.maxPageNo = maxPageNo
        self.thisPageInfo = thisPageInfo

        super.init(nibName: nil, bundle: nil)
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        self.pageBackButton.hidden = pageNo == 0
        self.pageNextButton.hidden = pageNo == maxPageNo
        pageHeadingLabel.text = thisPageInfo[0]
        pageInstructionLabel.text = thisPageInfo[1]
        pageQuestionLabel.text = thisPageInfo[2]

        if thisPageInfo[0] == "Welcome" {
            createCheckboxes()
            pageProgressView.setProgress(0.33, animated: true)
        } else if thisPageInfo[0] == "Awesome!" {
            createSlider()
            pageProgressView.setProgress(0.67, animated: true)
        } else if thisPageInfo[0] == "Almost there..." {
            createSlider()
            pageProgressView.setProgress(0.95, animated: true)
        }
    }

    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func createCheckboxes() {
        let fWidth = (self.view.frame.width - 40) / 2
        var frame = CGRectMake(0, 0, fWidth, 40)
        var contentSize = CGRectMake(0, 0, self.view.frame.width - 40, 0)

        for (var counter = 0; counter < interestsList.count; counter++) {
            let checkbox = Checkbox(frame: frame, title: interestsList[counter], selected: false)
            checkbox.mDelegate = self
            checkbox.tag = counter
            checkbox.backgroundColor = UIColor.redColor()

            if counter % 2 == 0 {
                frame.origin.x += fWidth
            } else{
                frame.origin.x -= fWidth
                frame.origin.y += frame.size.height
                contentSize.size.height += frame.size.height
            }

            checkbox.titleLabel?.adjustsFontSizeToFitWidth = true
            pageAnswerView.addSubview(checkbox)
        }
    }

    func didSelectCheckbox(state: Bool, identifier: Int, title: String) {
        print("checkbox '\(title)' has state \(state)")
    }

    func createSlider() {
        let slider = UISlider(frame:CGRectMake(0, 20, self.view.frame.width - 40, 20))
        slider.minimumValue = 0
        slider.maximumValue = 10
        slider.continuous = true
        slider.tintColor = ChatQColours().chatQBlue
        slider.value = 5
        //        slider.addTarget(self, action: "sliderValueDidChange:", forControlEvents: .ValueChanged)
        pageAnswerView.addSubview(slider)

        let leftlabel = UILabel(frame: CGRectMake(0, 40, 0, 0))
        leftlabel.text = "Strongly Avoid"
        leftlabel.sizeToFit()
        pageAnswerView.addSubview(leftlabel)

        let rightlabel = UILabel(frame: CGRectMake(0, 40, 0, 0))
        rightlabel.text = "Strongly Prefer"
        rightlabel.sizeToFit()
        rightlabel.frame.origin.x = slider.frame.width - rightlabel.frame.width
        pageAnswerView.addSubview(rightlabel)
    }
}

pageViewController.setViewControllers(startingViewControllers,
                                                direction: UIPageViewControllerNavigationDirection.Forward,
                                                animated: true,
                                                completion: nil)

pageViewController.setViewControllers(startingViewControllers,
                                                direction: UIPageViewControllerNavigationDirection.Reverse,
                                                animated: true,
                                                completion: nil)

func movePageToIndex(pageIndex NSInteger)->() {
    var viewControllers = []
    var direction : UIPageViewControllerNavigationDirection! 
    if (pageIndex < currentIndex) {
        direction = UIPageViewControllerNavigationDirection.Reverse
    } else {
        direction = UIPageViewControllerNavigationDirection.Forward
    }
    viewControllers = @[[self.getItemController(pageIndex)]]

    WEAKSELF weakSelf = self;
    self.pageViewController.setViewControllers:viewControllers direction:direction animated:false completion:nil];
}

  PageOneVC:UIViewController
  PageTwoVC:UIViewController
  PageThreeVC:UIViewController
  PageFourVC:UIViewController

 var pages:[UIViewController] = [
        UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "PageOneVC"),
        UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "PageTwoVC"),
        UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "PageThreeVC"),
        UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "PageFourVC")
]

    // get parent view controller
    let parentVC = self.parent as! UserDetailsPVC

    // change page of PageViewController
    parentVC.setViewControllers([parentVC.pages[1]], direction: .forward, animated: true, completion: nil)

//MARK:- Programatically move to Next Page or Previous Page
//Your Desire index in Your UIViewController Array
    let arr : [UIViewController] = [arrvc[1]] 
    pagecontroller.setViewControllers(arr,
                                    direction: UIPageViewController.NavigationDirection.reverse,
                                    animated: true,
                                    completion: nil)