Swift 如何使用页面控件将图像从 ScrollView 传递到新的 ViewController

Question

我正在尝试使图像可点击并将它们传递给包含更多详细信息的新视图控制器。我在我的 HomeViewController 中使用 UIScrollView 和 UIPageController。我试图研究但找不到任何具体的例子。我在想也许可以通过 segue 传递它，但我不知道如何传递。欢迎任何想法。提前致谢。这是我的代码：

class HomeViewController: UIViewController, UIScrollViewDelegate {

@IBOutlet var pageControl: UIPageControl!
@IBOutlet var topScrollView: UIScrollView!

 override func viewDidLoad() {
    super.viewDidLoad()

    pageScrollView()

   }

func pageScrollView() {

    self.topScrollView.isUserInteractionEnabled = true
    self.topScrollView.addGestureRecognizer(UITapGestureRecognizer())

    self.topScrollView.frame = CGRect(x: 0, y: 0, width: view.frame.size.width, height: 200)
    let scrollViewWidth:CGFloat = self.topScrollView.frame.width
    let scrollViewHeight:CGFloat = self.topScrollView.frame.height


    let imgOne = UIImageView(frame: CGRect(x:0, y:0,width:scrollViewWidth, height:scrollViewHeight))
    imgOne.image = UIImage(named: "img1")        
    let imgTwo = UIImageView(frame: CGRect(x:scrollViewWidth, y:0,width:scrollViewWidth, height:scrollViewHeight))
    imgTwo.image = UIImage(named: "img2")
    let imgThree = UIImageView(frame: CGRect(x:scrollViewWidth*2, y:0,width:scrollViewWidth, height:scrollViewHeight))
    imgThree.image = UIImage(named: "img3")
    let imgFour = UIImageView(frame: CGRect(x:scrollViewWidth*3, y:0,width:scrollViewWidth, height:scrollViewHeight))
    imgFour.image = UIImage(named: "img4")
    let imgFive = UIImageView(frame: CGRect(x:scrollViewWidth*4, y:0,width:scrollViewWidth, height:scrollViewHeight))
    imgFive.image = UIImage(named: "img5")


    self.topScrollView.addSubview(imgOne)
    self.topScrollView.addSubview(imgTwo)
    self.topScrollView.addSubview(imgThree)
    self.topScrollView.addSubview(imgFour)
    self.topScrollView.addSubview(imgFive)

    self.topScrollView.contentSize = CGSize(width:self.topScrollView.frame.width * 5, height:self.topScrollView.frame.height)
    self.pageControl.currentPage = 0

  }

    func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {

    let pageWidth:CGFloat = scrollView.frame.width
    let currentPage:CGFloat = floor((scrollView.contentOffset.x-pageWidth/2)/pageWidth)+1

    // Change the indicator
    self.pageControl.currentPage = Int(currentPage)


   }
}

Answer 1

我明白了。希望它能帮助别人。我补充说：

@objc var imgOne = UIImageView()
@objc var imgTwo = UIImageView()
@objc var imgThree = UIImageView()
@objc var imgFour = UIImageView()
@objc var imgFive = UIImageView()

   @objc func imageTapped(_sender:UITapGestureRecognizer) {

     let vc = self.storyboard?.instantiateViewController(withIdentifier: "DetailsMapsViewController") as! DetailsMapsViewController
     vc.restaurantMaps = self.restaurantArray[_sender.view!.tag]
     self.navigationController?.pushViewController(vc, animated: true)
}

    imgOne.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(HomeViewController.imageTapped)))
    imgTwo.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(HomeViewController.imageTapped)))
    imgThree.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(HomeViewController.imageTapped)))
    imgFour.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(HomeViewController.imageTapped)))
    imgFive.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(HomeViewController.imageTapped)))

    imgOne.tag = 0
    imgTwo.tag = 1
    imgThree.tag = 2
    imgFour.tag = 3
    imgFive.tag = 4

Swift 如何使用页面控件将图像从 ScrollView 传递到新的 ViewController

How to pass images to a NewViewController from ScrollView with Page Control in Swift

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