ios - 选择一行后，UITableView 会自动选择另一行

Question

我正在开发一个具有表格 View 的应用程序，每个 TableView 单元格仅包含标签，我已将电池配件类型设置为 CheckMark，如果我选择一行，则会出现复选标记一切都在进行中

但是当我选择一行并向下滚动表格 View 时，其他行上会出现复选标记，所以请帮助我

我已附上以下代码

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
  tableView.deselectRowAtIndexPath(indexPath, animated: true)
  let selectRow = self.MytableView.cellForRowAtIndexPath(indexPath)!
  var can: Candy
  if tableView == self.searchDisplayController?.searchResultsTableView{
     can = self.filteredCandy[indexPath.row]
  }else{
     can = self.candies[indexPath.row]
  }
let name = "\(can.firstName) \(can.lastName)"
 if selectRow.accessoryType == UITableViewCellAccessoryType.None{
    selectRow.accessoryType = UITableViewCellAccessoryType.Checkmark
    selectRow.tintColor = UIColor.blackColor()
    DataStorageManager.sharedInstance.guests.append(name)
 }else{
    selectRow.accessoryType = UITableViewCellAccessoryType.None
    DataStorageManager.sharedInstance.guests == DataStorageManager.sharedInstance.guests.filter(){$0 != name}   
    }
}

Answer 1

您犯了逻辑错误，即您要对新单元格进行复选标记，但没有对最后选定的行进行取消复选标记。所以请执行我的逻辑。首先创建一个全局变量，例如

 let selectedRow = 0

And then implement this one 

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        let selectedIndexPath = NSIndexPath.init(forItem: selectedRow, inSection: 0)
        let selectedCell = tableView.cellForRowAtIndexPath(selectedIndexPath)! as UITableViewCell

        selectedCell.accessoryType = .None

let selectRow = self.MytableView.cellForRowAtIndexPath(indexPath)!
  var can: Candy
  if tableView == self.searchDisplayController?.searchResultsTableView{
     can = self.filteredCandy[indexPath.row]
  }else{
     can = self.candies[indexPath.row]
  }
let name = "\(can.firstName) \(can.lastName)"
 if selectRow.accessoryType == UITableViewCellAccessoryType.None{
    selectRow.accessoryType = UITableViewCellAccessoryType.Checkmark
    selectRow.tintColor = UIColor.blackColor()
    DataStorageManager.sharedInstance.guests.append(name)
 }else{
    selectRow.accessoryType = UITableViewCellAccessoryType.None
    DataStorageManager.sharedInstance.guests == DataStorageManager.sharedInstance.guests.filter(){$0 != name}   
    }

selectedRow = indexPath.row
}