didSelectRowAtIndexPath不工作,Swift 3
任何人都可以看到为什么在世界didSelectRowAtIndexPath不会被称为? 我已经在代码和故事板中通过delegate
进行三重检查。
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 } } }
Swift 3修改了方法的签名(也有很多方法,新的“规则”/样式)
更换:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: IndexPath)
与
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
注意_
, didSelectRowAt
对didSelectRowAtIndexPath
,就像你更新的其他(也适用于相同的“风格”),但不是这一个。
删除线,让XCode做自动完成。 否则,你可以用文档中的replace它。