Question

我试图从collectionViewCell转到带我去tableView，但无法让它发挥作用。它说

无法将类型字符串的值赋给[browseBook]
类型

我想点击单元格并在tableview单元格中显示相应的信息。

CareerSectorViewController：

class CareerSectorViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {

        @IBOutlet weak var careerSectorViewController: UICollectionView!

        var sectors:[CareerSectorModel] = [
        CareerSectorModel(title: "Javascript", imageName: "js.png"),
        ]

        func collectionView(_ collectionView: UICollectionView, 
         didSelectItemAt indexPath: IndexPath) {
        self.performSegue(withIdentifier: "showBooks", sender: self)
    }

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if segue.identifier == "showBooks" {
            let destinationController = segue.destination as! BooksViewController
            if let cell = sender as? CareerSectorCell {
                if let indexPath = careerSectorViewController.indexPath(for: cell) {
                    let sector = sectors[indexPath.row]
                    destinationController.browseBooks = sector.title
                    destinationController.browseBooks = UIImage(named:sector.imageName )
                }
            }

        }

    }

   }

BookViewController：

class BooksViewController: UIViewController,UITableViewDelegate, UITableViewDataSource {
     let cellIdentifier = "bookCell"

    var browseBooks:[BrowseBook] = [
        BrowseBook(image: "ruby.png", bookName: "HeadFirstRuby", authorName: "Jay McGraven"),

     func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return browseBooks.count
    }


    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier , for: indexPath) as! BookCell

        let browseBook = browseBooks[indexPath.row]

        cell.bookImageName.image = UIImage(named: browseBook.image)
        cell.nameLabel.text = browseBook.bookName
        cell.authorLabel.text = browseBook.authorName
        return cell
    }
}

BrowseBookModel：

struct BrowseBook {
    private(set) public var image: String
    private(set) public var bookName: String
    private(set) public var authorName: String

    init(image: String, bookName: String, authorName: String) {
        self.image = image
        self.bookName = bookName
        self.authorName = authorName
    }
}

Answer 1

替换此行

 destinationController.browseBooks = sector.title
 destinationController.browseBooks = UIImage(named:sector.imageName )

与

destinationController.browseBooks = [BrowseBook(image: sector.imageName , bookName: sector.title, authorName: "Jay McGraven")]

无法指定“String”类型的值来键入“[BrowseBook]”

1 个答案: