如何在使用TPKeyboardAvoidingTableView时访问tableview单元格中的文本字段值

import UIKit
import TPKeyboardAvoiding

class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
    @IBOutlet weak var tableView: TPKeyboardAvoidingTableView!

    override func viewDidLoad() {
        super.viewDidLoad()
        
        tableView.delegate = self
        tableView.dataSource = self
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cellIdentifier = "CustomCell"
        let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath) as! CustomCell
        
        cell.textField.tag = indexPath.row
        cell.textField.addTarget(self, action: #selector(textFieldDidChange(_:)), for: .editingChanged)
        
        return cell
    }
    
    @objc func textFieldDidChange(_ textField: UITextField) {
        let rowIndex = textField.tag
        let indexPath = IndexPath(row: rowIndex, section: 0)
        let cell = tableView.cellForRow(at: indexPath) as! CustomCell
        
        let text = textField.text
        // 在这里可以获取到文本字段的值，并进行相应的处理
    }
}