如何根据从xcode ios中的collectionview单元格查看的单元格在标题栏中设置标题

Question

我正在为我想到的应用制作奖牌页面。我有这样一种方式设置应用程序，当点击奖牌时，它会打开一个包含该奖牌图片的页面。

如果可能，我还希望在他们的视图控制器中为每个奖牌添加描述。我该如何做到这一点？

这是我的代码示例：

Medal.swift

import UIKit

class Medals: UICollectionViewController

{

    // Defining the array
    let imageArray = [UIImage(named: "1"), UIImage(named: "2")]

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    //Allows you to populate the cells you've created
    override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        // cell was from the identifier we named earlier

        // we let collectionviewcell handle the connection to UIcollectionviewcell
        let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! CollectionViewCell

        cell.imageView?.image = self.imageArray[indexPath.row]


        return cell

    }

    // How many cells do we want to have inside the collection view? Just count the number of images assigned
    override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return imageArray.count
    }

    override func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
        self.performSegueWithIdentifier("showImage", sender: self)
    }

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if segue.identifier == "showImage"
        {
            let indexPaths = self.collectionView!.indexPathsForSelectedItems()!
            let indexPath = indexPaths[0] as NSIndexPath

            let vc = segue.destinationViewController as! MedalDetail
            vc.image = self.imageArray[indexPath.row]!
        }
    }

}

CollectionViewCell.swift

import UIKit

class CollectionViewCell: UICollectionViewCell {

    @IBOutlet weak var imageView: UIImageView!


}

medaldetails.swift

import UIKit

class MedalDetail: UIViewController {

    @IBOutlet weak var imageView: UIImageView!
    @IBOutlet weak var setTitle: UINavigationItem!

    var image = UIImage()
    var medalTitle = UINavigationItem()

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        self.imageView.image = self.image
    }

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


}

感谢您的帮助

编辑：

这是我希望奖牌页面在点击时的样子：

Answer 1

首先在 Medals ViewController 中创建 medalDescriptions 数组，然后在 didSelectItemAtIndexPath 中调用 performSegue 到 MedalDetail viewController

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
    let index = indexPath.row
    self.performSegueWithIdentifier("SegueMedalDetail", sender: nil)
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "SegueChallenge" {

        let medalDetailViewController = segue.destinationViewController as! MedalDetail
        medalDetailViewController.medalDescription = medalDescriptions[index]
    }
}

在 MedalDetail 创建 medalDescription 并在同一个 viewController 中更改导航栏标题

override func viewDidAppear(animated: Bool) {
    self.navigationController?.navigationBarHidden = false
    self.navigationItem.title = medalDescription

    self.navigationController!.navigationBar.tintColor = UIColor.whiteColor()
    let attributes = [
        NSForegroundColorAttributeName: UIColor.whiteColor(),
        NSFontAttributeName: UIFont(name: "Helvetica", size: 50)!
    ]
    self.navigationController?.navigationBar.titleTextAttributes = attributes

}

为了以后不要只用它们的名字命名你的控制器或其他类，还要在末尾添加 ViewController 或 View。例如，MedalDetailViewController。这样会更好理解和阅读

Answer 2

没关系，我找到了另一种方法。我为每个奖牌实例化了单独的视图控制器，因此每个视图控制器可以有不同的属性。