Question

我正在使用AppCoda的Beginning Swift Programming一书，我似乎无法弄清楚这段代码有什么问题。

IO

此行抛出＆＃39; AnyObject无法转换为＆＃39; UITableViewCell＆＃39;

import UIKit

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

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

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

var restaurantNames = ["Cafe Deadend", "Homei", "Teakha", "CafeLoisl", "Petite Oyster", "For Kee Restaurant", "Po's Atelier", "Bourke Street Bakery", "Haigh’s Chocolate", "Palomino Espresso", "Upstate", "Traif", "Graham Avenue Meats And Deli", "Waffle & Wolf", "Five Leaves", "Cafe Lore", "Confessional", "Barrafina", "Donostia", "Royal Oak", "CASK Pub and Kitchen"]

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // Return the number of rows in the section.
    return restaurantNames.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) ->
        UITableViewCell {
        let cellIdentifier = "Cell"
        let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as UITableViewCell

    // Configure the cell...
        cell.textLabel.text = restaurantNames[indexPath.row]
        return cell
}

}

我对Swift和iOS编程一般都很陌生，所以任何帮助都会受到赞赏。

Answer 1

您需要将as更改为as!

var cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UITableViewCell

还要确保已使用可重复使用的字符串名称"Cell"

将原型单元格添加到故事板中

Answer 2

//MARK: Tableview
func tableView(tableView: UITableView!, numberOfRowsInSection section: Int) -> Int
{

    return tabledata.count


}

func tableView(tableView: UITableView!,
    cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!
{
    let cell:UITableViewCell = UITableViewCell(style:UITableViewCellStyle.Default, reuseIdentifier:"Cell")
    cell.textLabel?.text = tabledata[indexPath.row]

    return cell
}

我已将此代码用于tableview ....您可以根据需要更改此内容。即使我是swift中的新手，否则我会更正您的代码。

AnyObject无法转换为UITableViewCell

2 个答案: