ios - 选择单元格 iOS swift 时的复选框功能

Question

我有一个包含可重用单元格的表格 View 。我将 ImageView 放置为一个复选框，用于指示该行是否被选中。 Whenever a row is selected then the image changes accordingly correctly but another cell's image which are being reused also change.我已经尝试通过将状态保存到模型并将其反射(reflect)到 View 中，但我仍然无法解决这个问题，因为 indexPath 在某些单元格之后继续重复。

var allvacc: [[String:String]] = [
    [
        "id":"0",
        "name":"BCG",
        "timeAfterBirth":"1",
        "description":"BCG stands for Bacillus Calmette–Guérin given to a baby 1 times as soon as possible after birth for protection against Tuberculosis",
        "isChecked": "false",
    ],
    [
        "id":"1",
        "name":"DPT-HepB-HiB - I",
        "timeAfterBirth":"42",
        "description":"DPT refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough), and tetanus. Hepatitis B adn Hemophilius Influenza. This vaccine is taken 3 times in 6, 10 and 14 weeks.",
        "isChecked": "false",
    ] 
]

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        allVacc[indexPath.row]["isChecked"] = "true"
        vaccineTableView.reloadData()


    }

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        guard let checkListCell = tableView.dequeueReusableCellWithIdentifier("vaccineCheckListCell") as? VaccineCheckListCell else {
            return UITableViewCell() }
        checkListCell.vaccineNameLabel.text = vaccinationList[indexPath.row].name
        if  allVacc[indexPath.row]["isChecked"] == "true" {
            checkListCell.vaccineStatusImage.image = UIImage(named: "ic_check_circle_yellow_48dp")
        }
        return checkListCell
    }

Answer 1

加载表格时分配未经检查的图像。 这是 sloution

     override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
                guard let checkListCell = tableView.dequeueReusableCellWithIdentifier("vaccineCheckListCell") as? VaccineCheckListCell else {
                    return UITableViewCell() }
                checkListCell.vaccineNameLabel.text = vaccinationList[indexPath.row].name
                checkListCell.vaccineStatusImage.image = your unchecked image

 if  allVacc[indexPath.row]["isChecked"] == "true" {
                    checkListCell.vaccineStatusImage.image = UIImage(named: "ic_check_circle_yellow_48dp")
                }
                return checkListCell
            }