我想从UITableView
单元格过渡到视图控制器。我的didSelectRowAt
无法正常工作。
这是代码:
import UIKit
class ViewController: UIViewController, UITableViewDelegate {
@IBOutlet weak var tableView: UITableView!
var goals = [String]()
@IBAction func onAddTapped() {
let alert = UIAlertController(title: "Add Goal", message: nil, preferredStyle: .alert)
alert.addTextField { (dessertTF) in
dessertTF.placeholder = "Enter Goal"
}
let action = UIAlertAction(title: "Add", style: .default) { (_) in
guard let goal = alert.textFields?.first?.text else { return }
print(goal)
self.add(goal)
}
alert.addAction(action)
present(alert, animated: true)
}
func add(_ goal: String) {
let index = 0
goals.insert(goal, at: index)
let indexPath = IndexPath(row: index, section: 0)
tableView.insertRows(at: [indexPath], with: .left)
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
performSegue(withIdentifier: "segue", sender: self)
}
}
extension ViewController: UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return goals.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell()
let dessert = goals[indexPath.row]
cell.textLabel?.text = goals
return cell
}
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
guard editingStyle == .delete else { return }
desserts.remove(at: indexPath.row)
tableView.deleteRows(at: [indexPath], with: .automatic)
}
}
答案 0 :(得分:0)
问题是您没有正确创建单元格。
cellForRow 功能更改的内部
let cell = UITableViewCell()
对此:
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
请确保在情节提要文件中,将单元格标识符设置为“单元格”