ios - 用户输入不适用于在表格 View 中以编程方式添加的文本字段

Question

我正在尝试添加一个用户可编辑的文本字段。我能够让文本字段出现在表格的每个不同单元格中，但我无法让用户输入。它不显示键盘。我启用了用户交互。这是我的代码。请忽略注释掉的部分。

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

  //self.tableView.rowHeight = 100



    //var a = Array(words[indexPath.row])

    //a.shuffle()

    //var shuffledWord = String(a)


    //shuffledWord = shuffledWord.lowercased()

    let sampleTextField =  UITextField(frame: CGRect(x: 20, y: 100, width: 300, height: 40))
    sampleTextField.placeholder = "Enter text here"
    sampleTextField.font = UIFont.systemFont(ofSize: 15)
    sampleTextField.borderStyle = UITextBorderStyle.roundedRect
    sampleTextField.autocorrectionType = UITextAutocorrectionType.no
    sampleTextField.keyboardType = UIKeyboardType.alphabet
    sampleTextField.returnKeyType = UIReturnKeyType.done
    sampleTextField.clearButtonMode = UITextFieldViewMode.whileEditing;
    sampleTextField.contentVerticalAlignment = UIControlContentVerticalAlignment.center
    sampleTextField.delegate = self as? UITextFieldDelegate


   // cell.textLabel?.text = shuffledWord

   // var imageName = UIImage(named: words[indexPath.row])
    //cell.imageView?.image = imageName

    return cell
}

如果可能的话，你能告诉我如何将用户的输入存储为变量吗？

提前致谢

Answer 1

正如@rmaddy 所说，首先，您必须将该文本字段添加到您的单元格中...

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

  sampleTextField.text = arrTextFieldVal[indexPath.item]//this array for stroing the user input values..
  sampleTextField.tag = indexPath.item // u will access the text field with this value 
  cell.addSubview(sampleTextField)........}

其次，您可以通过管理字符串数组来存储用户值，例如...

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

并像这样从文本字段委托(delegate)中获取值...

 func textFieldDidEndEditing(_ textField: UITextField) {
    arrTextFieldVal[textField.tag] = textField.text!
}

func textFieldShouldReturn(_ textField: UITextField) -> Bool {
    textField.resignFirstResponder()
    return true
}