Question

编辑：我在正确的轨道上，但按钮只能指向1个ViewController

我用过

    @IBAction func viewTouchedBttn(_ sender: Any) {
    print("touched")
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {



        switch indexPath.row {
        case 0:
            print("1")
            performSegue(withIdentifier: "1", sender: nil)
        case 1:
            performSegue(withIdentifier: "2", sender: nil)
        case 2:
            performSegue(withIdentifier: "3", sender: nil)
        default:
            break
        }

    }

我最近完成了关于使用本教程https://www.youtube.com/watch?v=vB-HKnhOgl8中教导的UICollectionView在swift中构建旋转木马的教程（您也可以下载它，因此我们将拥有相同的基础）

我已经不再使用编码了，所以我很抱歉，如果这对你来说显而易见，我就不会得到它^^。

每个类别应通过单击单元格指向不同的vc。

当我按下＆＃34;观看世界＆＃34; segue应该指向你可以谈论Travel的VC，如果我有兴趣构建应用程序并点击该视图，我希望被引导到这个特定的类别。

感谢您的帮助！ :)

编辑：文件

InterestCollectionView

class InterestCollectionViewCell: UICollectionViewCell
{
@IBOutlet weak var featuredImageView: UIImageView!
@IBOutlet weak var interestTitleLabel: UILabel!
@IBOutlet weak var backgroundColorView: UIView!
@IBOutlet weak var kategorie: UILabel!

var interest: Interest? {
    didSet {
        self.updateUI()
    }
}

private func updateUI()
{
    if let interest = interest {
        kategorie.text = interest.kategorie
        featuredImageView.image = interest.featuredImage
        interestTitleLabel.text = interest.title
        backgroundColorView.backgroundColor = interest.color
    } else {
        featuredImageView.image = nil
        interestTitleLabel.text = nil
        backgroundColorView.backgroundColor = nil
    }
}

override func layoutSubviews() {
    super.layoutSubviews()

    self.layer.cornerRadius = 3.0
    layer.shadowRadius = 10
    layer.shadowOpacity = 0.4
    layer.shadowOffset = CGSize(width: 5, height: 10)

    self.clipsToBounds = false
}
}

兴趣档案

class Interest
{
// MARK: - Public API
var kategorie = ""
var title = ""
var featuredImage: UIImage
var color: UIColor

init(title: String, featuredImage: UIImage, color: UIColor, kategorie: String)
{
    self.kategorie = kategorie
    self.title = title
    self.featuredImage = featuredImage
    self.color = color
}

// MARK: - Private
// dummy data
static func fetchInterests() -> [Interest]
{
    return [
        Interest(title: "Travelling Around the World", featuredImage: UIImage(named: "f1")!, color: UIColor(red: 63/255.0, green: 71/255.0, blue: 80/255.0, alpha: 0.8), kategorie: "Forum"),
        Interest(title: "Cafe with Best Friends", featuredImage: UIImage(named: "f2")!, color: UIColor(red: 240/255.0, green: 133/255.0, blue: 91/255.0, alpha: 0.8), kategorie: "Forum"),
        Interest(title: "Study Personal Development Books and Courses", featuredImage: UIImage(named: "f3")!, color: UIColor(red: 105/255.0, green: 80/255.0, blue: 227/255.0, alpha: 0.8), kategorie: "Post"),
        Interest(title: "Build Amazing iOS Apps", featuredImage: UIImage(named: "f4")!, color: UIColor(red: 102/255.0, green: 102/255.0, blue: 102/255.0, alpha: 0.8), kategorie: "Forum"),

        Interest(title: "Learn. Create. Contribute.", featuredImage: UIImage(named: "f5")!, color: UIColor(red: 245/255.0, green: 62/255.0, blue: 40/255.0, alpha: 0.8),kategorie: "Forum"),
        Interest(title: "Inspire, Instruct, and Empower People", featuredImage: UIImage(named: "f6")!, color: UIColor(red: 103/255.0, green: 217/255.0, blue: 87/255.0, alpha: 0.8), kategorie: "Bilder"),
        Interest(title: "Business and Marketing Geeks", featuredImage: UIImage(named: "f7")!, color: UIColor(red: 63/255.0, green: 71/255.0, blue: 80/255.0, alpha: 0.8), kategorie: "Forum"),
        Interest(title: "3D Printing, Virtual Reality and AI", featuredImage: UIImage(named: "f8")!, color: UIColor(red: 240/255.0, green: 133/255.0, blue: 91/255.0, alpha: 0.8), kategorie: "Forum"),
        Interest(title: "Einzeiler", featuredImage: UIImage(named: "f3")!, color: UIColor(red: 30/255.0, green: 20/255.0, blue: 130/255.0, alpha: 0.8), kategorie: "Forum")
    ]
}
}

兴趣ViewController

import UIKit

class InterestsViewController: UIViewController
{
@IBOutlet weak var collectionView: UICollectionView!

var interests = Interest.fetchInterests()
let cellScaling: CGFloat = 0.6

override func viewDidLoad() {
    super.viewDidLoad()

    let screenSize = UIScreen.main.bounds.size
    let cellWidth = floor(screenSize.width * cellScaling)
    let cellHeight = floor(screenSize.height * cellScaling)

    let insetX = (view.bounds.width - cellWidth) / 2.0
    let insetY = (view.bounds.height - cellHeight) / 2.0

    let layout = collectionView!.collectionViewLayout as!     UICollectionViewFlowLayout
    layout.itemSize = CGSize(width: cellWidth, height: cellHeight)
    collectionView?.contentInset = UIEdgeInsets(top: insetY, left: insetX, bottom: insetY, right: insetX)

    collectionView?.dataSource = self
    collectionView?.delegate = self
}
}

extension InterestsViewController : UICollectionViewDataSource
{
func numberOfSections(in collectionView: UICollectionView) -> Int {
    return 1
}

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return interests.count
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell
{
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "InterestCell", for: indexPath) as! InterestCollectionViewCell

    cell.interest = interests[indexPath.item]

    return cell
}
}

extension InterestsViewController : UIScrollViewDelegate, UICollectionViewDelegate
{
func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>)
{
    let layout = self.collectionView?.collectionViewLayout as! UICollectionViewFlowLayout
    let cellWidthIncludingSpacing = layout.itemSize.width + layout.minimumLineSpacing

    var offset = targetContentOffset.pointee
    let index = (offset.x + scrollView.contentInset.left) / cellWidthIncludingSpacing
    let roundedIndex = round(index)

    offset = CGPoint(x: roundedIndex * cellWidthIncludingSpacing - scrollView.contentInset.left, y: -scrollView.contentInset.top)
    targetContentOffset.pointee = offset
}
}

Answer 1

你有多种选择可以做你想做的事。

例如，您可以在故事板中添加一个故事板引用到想要转换的控制器，或者视图控制器是否在同一个故事板中。然后按住Ctrl键并从视图拖动到要切换到的视图控制器（或故事板参考）。那里你将有不同的segues类型（显示，推送等）。这是完成故事板的方式。

还有其他多种选择。但这可能是最简单的。

https://developer.apple.com/library/content/featuredarticles/ViewControllerPGforiPhoneOS/UsingSegues.html

修改

您还可以从控制器创建8个segues（从控制器按住ctrl +拖动）到其他控制器或故事板参考。然后单击创建的segues，并在标识符检查器名称中单击每个具有唯一标识符的segue。

然后，当您单击单元格时，您可以确定单击了哪个单元格，并使用performSegueWithIdentifier(identifier, sender)
执行该单元格所需的segue

从Collection View中查看不同的类别

1 个答案: