Question

我在故事板的单元格中有一个UITableViewController标签。我想在下一个控制器的标题中显示所选单元格的标题。如何显示标题？

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 8
}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if (segue.destination is ViewController) {
        //code to showing title of my cell
    }
}

Answer 1

您只需要在if语句中获取目标ViewController，如下所示：

//get destination view an set the title
let vc=segue.destination
//set title
vc.title="My Title"

Answer 2

使用它来获取选定的单元格：

let indexPath = tableView.indexPathForSelectedRow
let currentCell = tableView.cellForRow(at: indexPath!)!
print(currentCell.textLabel!.text)

Answer 3

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    // create a new cell if needed or reuse an old one
    let cell:UITableViewCell = self.tableView.dequeueReusableCell(withIdentifier: cellReuseIdentifier) as UITableViewCell!        

    // Do not forgot to set cell tag.
    cell.tag = indexPath.row//cell tag has been set to indexpath.row

    return cell
    }

为了导航到你的tableViewController实现PrepareForSegue，如下所述。

    override func prepare(for segue: UIStoryboardSegue, sender: Any!) {

    if segue.identifier == "Your_Identifier" {

    // Use this tag to pass data for the selected cell
    //this tag will act as indexpath.row

    guard let tag = (sender as? UIView)?.tag
    else {
     return
    }

let vc = segue.destination as! ViewController// change ViewController with your view controller

vc.title = YOUR_VALUE // get title for selected row from your array using tag. and 
//(vc.title) is the title of string type declared in next view controller

    // add the data you want to parse here.
    print(tag)
    }
    }

在下一个视图控制器

中

您可以通过更改正在显示的视图控制器的标题来更改标题：

通常这是在视图中完成加载视图控制器：

override func viewDidLoad() {
    super.viewDidLoad()
    self.title = title //title is the property created by you
}

如何使用segue在下一个控制器中显示单元格标题？

3 个答案: