swift - 从行中的单元格获取标签文本

Question

当我调用 did select row 时，是否有另一种方法可以从 refinementslabel.text 获取字符串，因为我认为/显然是在新的 XCode 调用中
let serviceTypeCell = tableView.dequeueReusableCell(withIdentifier: "cellId", for: indexPath) as!服务单元

使我的应用程序崩溃

所以我正在寻找类似的代码
让文本=在indexpath.row处的refinementsLabel.text

但我不确定到底要输入什么？

let sections = ["All Users & Services","Automotive", "Building & Construction", "Cleaning", "Landscaping & Gardening"]

let services = [["All Users & Services"],["Automotive"],["Air Conditioning & Heating","Bricklaying", "Carpentry","Carpet Layer","Concreting & Paving","Electrical","Fencing and Gates","Flooring","Handyman","Other","Painting & Decorating","Pet Control","Plastering","Plumbing","Roofing","Rubbish Removal","Scaffolding","Tiling"], ["Cleaning"],["Landscaping & Gardening"]]

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()

}

Answer 1

创建新单元格时使用以下方法，如果您使用该方法而不是应用程序崩溃，则在 cellforRow 中使用该方法

let serviceTypeCell = tableView.dequeueReusableCell(withIdentifier: "cellId", for: indexPath) as! ServiceCell  

如果您在 didselect 方法中获取单元格，则可以使用以下代码

let cell = tableView.cellForRow(at: indexPath) as? ServiceCell

如果您从中获取字符串，则可以选择单元格而不是使用下面的行

let service = services[indexPath.section][indexPath.row]