Question

如果触摸了单元格 - 继续移动另一个VC，我该怎么办？我试着这样做，但我没有工作。这是我的代码

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "transData" {
        let destination = segue.destination as! WinnerViewController

        let cell = sender as? UITableViewCell

        if cell == cell {
            let indexPath = tableView.indexPath(for: cell!)
            if indexPath == indexPath {
                let productName = users[(indexPath?.row)!]
                destination.winner = productName.name
            }
        }
    }

当我触摸每个细胞时 - 它不会移动。请帮忙

Answer 1

点击一个单元格时，有两个选项可以执行segue。

segue从表格视图单元格连接到目标控制器

在这种情况下，单元格将作为sender参数

传递

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "transData", let cell = sender as? UITableViewCell {
         let destination = segue.destination as! WinnerViewController
         let indexPath = tableView.indexPath(for: cell)!  
         let productName = users[indexPath.row]
         destination.winner = productName.name
    }
}

segue从源控制器连接到目标控制器

在这种情况下，您必须实施didSelectRowAt，调用performSegue(withIdentifier并将索引路径作为sender参数传递

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    performSegue(withIdentifier: "transData", sender: indexPath)
 }

然后prepare(for必须是

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "transData", let indexPath = sender as? IndexPath {
         let destination = segue.destination as! WinnerViewController
         let productName = users[indexPath.row]
         destination.winner = productName.name
    }
}

Answer 2

Hi you can do like this :
take Indexpath as golbal variable eg : var indexPathTemp : IndexPath?
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
  indexPathTemp = indexPath
  performSegueWithIdentifier("transData", sender: self)

}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "transData" {
        let destination = segue.destination as! WinnerViewController
                let productName = users[(indexPath?.row)!]
                destination.winner = productName.name
            }

    }

Answer 3

修改

@vadian的回答是详细而正确的。以下是从视图控制器导航到另一个视图控制器的其他方式。

如果您使用segue，并希望导航到 WinnerViewController ：

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { tableView.deselectRow(at: indexPath, animated: true) performSegue(withIdentifier: "YOUR_SEGUE_IDENTIFIER", sender: indexPath) } override func prepare(for segue: UIStoryboardSegue, sender: Any?) { if segue.identifier == "YOUR_SEGUE_IDENTIFIER", let indexPath = sender as? IndexPath { let destinationVC = segue.destination as? WinnerViewController let productName = users[indexPath.row] destinationVC.winner = productName.name } }

如果您使用Storyboard和pushViewController：

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { let productName = users[indexPath.row] let storyboard = UIStoryboard(name: "Main", bundle: nil) guard let destinationVC = storyboard.instantiateViewController(withIdentifier: "YOUR_WINNER_VIEW_IDENTIFIER") as? WinnerViewController else { return} destinationVC.winner = productName.name navigationController?.pushViewController(destinationVC, animated: true) }

如果您使用Interface Builder和pushViewController：

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { let productName = users[indexPath.row] let destinationVC = WinnerViewController(nibName: "YOUR_WINNER_VIEW_NAME", bundle: nil) destinationVC.winner = productName.name navigationController?.pushViewController(destinationVC, animated: true) }

如果触摸了单元格 - 继续移动另一个VC [SWIFT]

3 个答案: