自从我将我的应用程序转移到我的新计算机后,我得到了一个错误:
无法将标识符为cellID的单元格出列
尽管代码与我的旧电脑和旧电脑上的完全相同,但它运行良好。
下面是给出错误的页面中的代码:
import Foundation
import UIKit
class ServiceTypeSelector: UITableViewController,UINavigationBarDelegate {
let defaults = UserDefaults.standard
let sections = ["All Users & Services"]
let services = [["All Users & Services"]]
//active for business accounts only
override func viewDidLoad() {
super.viewDidLoad()
tableView.backgroundColor = UIColor.gray
guard let serviceBeingSearched = self.defaults.string(forKey: "Service being searched") else { return }
navigationItem.title = serviceBeingSearched
self.navigationController!.navigationBar.topItem!.title = ""
tableView.register(ServiceCell.self, forCellReuseIdentifier: "cellId")
tableView.register(Header.self, forHeaderFooterViewReuseIdentifier: "headerId")
tableView.sectionHeaderHeight = 50
}
override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
let serviceBeingSearched = self.defaults.string(forKey: "Service being searched")
if serviceBeingSearched == nil {
defaults.set("All Users & Services", forKey: "Service being searched")
tableView.reloadData()
}
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return sections.count
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return services[section].count
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let serviceTypeCell = tableView.dequeueReusableCell(withIdentifier: "cellId", for: indexPath) as! ServiceCell
var service = serviceTypeCell.refinementsLabel.text
service = services[indexPath.section][indexPath.row]
defaults.set(service, forKey: "Service being searched")
guard let serviceBeingSearched = self.defaults.string(forKey: "Service being searched") else { return }
navigationItem.title = serviceBeingSearched
tableView.reloadData()
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let serviceTypeCell = tableView.dequeueReusableCell(withIdentifier: "cellId", for: indexPath) as! ServiceCell
serviceTypeCell.refinementsLabel.text = services[indexPath.section][indexPath.row]
serviceTypeCell.sectionsSelector = self
return serviceTypeCell
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
return tableView.dequeueReusableHeaderFooterView(withIdentifier: "headerId")
}
}
class ServiceCell: UITableViewCell {
var serviceTypeSelector: ServiceTypeSelector?
//all other code removed for simplicity for the question
}
最佳答案
问题在于:
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let serviceTypeCell = tableView.dequeueReusableCell(withIdentifier: "cellId", for: indexPath) as! ServiceCell
您不能将
didSelectRowAt
中的单元格出列。关于ios - 无法使具有标识符cellID的单元出队。相同的代码可以在较早的Swift上正常工作,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/50054787/