didSelectRowAtIndexPath无效,Swift 3

Question

任何人都可以看到为什么世界上没有调用SelectRowAtIndexPath会被调用？我delegate在代码和故事板中都进行了三重检查.

class AddCard: UIViewController,UIPopoverPresentationControllerDelegate, UITableViewDataSource, UITableViewDelegate {

@IBOutlet weak var cardView: UIView!
@IBOutlet weak var tableView: UITableView!

let tableItems = ["Background Color","Background Image","Font Style","Font Color"]
let cellID = "cell"

override func viewDidLoad() {
    super.viewDidLoad()

    tableView.delegate = self
    tableView.dataSource = self
}

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

func setBackgroundColor (_ color: UIColor) {
    cardView.backgroundColor = color
}

func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return 1
}

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

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

    let row = indexPath.row
    cell.textLabel?.text = tableItems[row]

    return cell
}

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: IndexPath) {
    tableView.deselectRow(at: indexPath as IndexPath, animated: true)
    print(indexPath.row)
    let row = indexPath.row
    switch(row){
    case 0:
        let popoverVC = storyboard?.instantiateViewController(withIdentifier: "colorPickerVC") as! ColorPickerViewController
        popoverVC.modalPresentationStyle = .popover
        popoverVC.preferredContentSize = CGSize(width: 284, height: 446)
        if let popoverController = popoverVC.popoverPresentationController {
            popoverController.sourceView = self.view
            popoverController.sourceRect = CGRect(x: 0, y: 0, width: 85, height: 30)
            popoverController.permittedArrowDirections = .any
            popoverController.delegate = self
            popoverVC.delegate = self
        }
        present(popoverVC, animated: true, completion: nil)
        break
    default: break

    }
}

}

Answer 1

Swift 3修改了方法的签名(很多方法,新的"规则"/样式)

替换:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: IndexPath)用
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)

注意_,didSelectRowAtvs didSelectRowAtIndexPath,就像你更新的其他(也适用于相同的"风格"),但不是这个.

删除该行,让XCode执行自动完成.否则,您可以将其替换为doc中的那个.