Ios Swift-使用选中按钮保存tableviewcells；套用；按钮点击

我在tableview中显示饮料类别。在每个单元格中显示类别名称，并有一个复选框按钮。在按钮上单击复选框，图像从“选中的图像”更改为“未选中的图像”

---

我想区分哪些单元格在用户按下“应用”按钮时显示“选中图像”。然后从每个选定单元格（其按钮显示“checked image”图像的单元格）获取categoryLabel，并将其保存在数组中

复选框类：

   class CheckBox: UIButton
  {
    override func awakeFromNib()
    {
        let checkedImage = UIImage(named: "checked-image")! as UIImage
        let uncheckedImage = UIImage(named: "unchecked-image")! as UIImage
        
        self.setImage(uncheckedImage, for: .normal)
        self.setImage(checkedImage, for: .selected)

        self.addTarget(self, action: #selector(buttonClicked), for: .touchUpInside)
        self.isSelected = true
    }
    
    @objc func buttonClicked(sender: UIButton)
    {
        if sender == self {

                   sender.isSelected = !sender.isSelected
        }
    }
}

TableView：

class FilterViewController: UIViewController {

    var categories = [Category]()
    
    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var applyButton: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        getCategories()
    }
    
    @IBAction func applyButtonClicked(_ sender: UIButton) {
        print("Filter applied") 
        // save checked buttons 
    }
    
    func getCategories() {
        let url = URL(string: "https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
        
        URLSession.shared.dataTask(with: url!) { (data, response, error) in
            
            if error == nil {
                do {
                    self.categories = try JSONDecoder().decode(Categories.self, from: data!).drinks
                    
                    DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                } catch {
                    print(error)
                }
            }
        }.resume()
    }

}

extension FilterViewController: UITableViewDelegate, UITableViewDataSource {
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return categories.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        
        let cell = tableView.dequeueReusableCell(withIdentifier: "categoryCell", for: indexPath) as! CategoryCell
        
        cell.categoryLabel.text = categories[indexPath.row].strCategory
        cell.styleButton()
        
        return cell
    }
}

类别模型：

struct Categories:Decodable {
    var drinks: [Category]
}

struct Category:Decodable {
    var strCategory: String
}

饮料型号：

struct Response:Decodable {
    var drinks: [Drink]
}

struct Drink:Decodable {
    var strDrink: String
    var strDrinkThumb: String
}

类别：

class CategoryCell: UITableViewCell {

    @IBOutlet weak var categoryLabel: UILabel!
    @IBOutlet weak var checkBoxButton: CheckBox!
    
}

我的应用程序：

---

像这样重新排列您的代码

import UIKit

struct Categories: Codable {
    let drinks: [Drink]
}
// MARK: - Drink
struct Drink: Codable {
    let strCategory: String
}
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UIGestureRecognizerDelegate{
    @IBOutlet weak var tableView: UITableView!
    
    @IBOutlet weak var btnDone: UIButton!
    var datas = [[String : Any]]()
    var category = [Drink]()
    override func viewDidLoad() {
        super.viewDidLoad()
       
        self.getCategories()

    }

    func getCategories() {
        let url = URL(string: "https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
        
        URLSession.shared.dataTask(with: url!) { (data, response, error) in
            
            if error == nil {
                do {
                    self.category = try JSONDecoder().decode(Categories.self, from: data!).drinks
                    for i in 0..<self.category.count
                    {
                        self.datas.append(["name":self.category[i].strCategory, "status":"0"])
                    }
                    DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                } catch {
                    print(error)
                }
            }
        }.resume()
    }
    
    @IBAction func btnDone(_ sender: Any) {
        var selectedCatgry = [String]()
        for i in 0..<datas.count
        {
            let rowVal = datas[i]
            if rowVal["status"] as! String == "1"{
                selectedCatgry.append(rowVal["name"] as! String)
            }
        }
        print(selectedCatgry)
    }
    

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return datas.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! cell
        
            let val = datas[indexPath.row]
            cell.descriptionName.text = (val["name"] as! String)
            if (val["status"] as! String) == "1"{
                cell.btnSelect.setImage(UIImage(systemName: "circle.fill"), for: .normal)
            }else{
                cell.btnSelect.setImage(UIImage(systemName: "circle"), for: .normal)
            }
            cell.btnSelect.addTarget(self, action: #selector(subscribeTapped(_:)), for: .touchUpInside)
        cell.btnSelect.tag = indexPath.row
        return cell
    }
    
    
    @objc func subscribeTapped(_ sender: UIButton){
        var sel = datas[sender.tag]
        datas.remove(at: sender.tag)
        if sel["status"] as! String == "1"{
            sel.updateValue("0", forKey: "status")
        }else{
            sel.updateValue("1", forKey: "status")
        }
        datas.insert(sel, at: sender.tag)
        tableView.reloadData()
    }
}
    class cell: UITableViewCell {
     
        @IBOutlet weak var btnSelect: UIButton!
        @IBOutlet weak var descriptionName: UILabel!
        
    }

导入UIKit
结构类别：可编码{
让我们喝一杯：[喝一杯]
}
//马克：喝酒
结构：可编码{
让strCategory:String
}
类ViewController:UIViewController、UITableViewDataSource、UITableViewDelegate、UIGestureRecognitizerDelegate{
@IBVAR表格视图：UITableView！
@IBOUTLE弱var btnDone:UIButton！
变量数据=[[String:Any]]（）
变量类别=[饮料]（）
重写func viewDidLoad（）{
super.viewDidLoad（）
self.getCategories（）
}
func getCategories（）{
让url=url（字符串：https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
URLSession.shared.dataTask（带有：url！）{（数据、响应、错误）在
如果错误==nil{
做{
self.category=尝试JSONDecoder（）.decode（Categories.self，from:data！）。饮料
对于0..UITableViewCell中的i{
让cell=tableView.dequeueReusableCell（带有标识符：“cell”，for:indexPath）作为！cell
设val=datas[indexPath.row]
cell.descriptionName.text=（val[“name”]as！String）
如果（val[“status”]as！String）=“1”{
cell.btnSelect.setImage（UIImage（系统名：“circle.fill”），用于：。正常）
}否则{
cell.btnSelect.setImage（UIImage（系统名称：“圆圈”），用于：。正常）
}
cell.btselect.addTarget（self，action:#选择器（subscribeTapped（：）），for:.touchUpInside）
cell.btnSelect.tag=indexPath.row
返回单元
}
@objc func subscribeTapped（uu发送方：ui按钮）{
var sel=datas[sender.tag]
datas.remove（位于：sender.tag）
如果选择[“状态”]为！字符串==“1”{
选择更新值（“0”，分叉：“状态”）
}否则{
选择更新值（“1”，分叉：“状态”）
}
插入数据（sel，at:sender.tag）
tableView.reloadData（）
}
}
类别单元格：UITableViewCell{
@IBOutlet弱var B选择：UIButton！
@IBVAR描述名称：UILabel！
}

像这样重新排列您的代码

import UIKit

struct Categories: Codable {
    let drinks: [Drink]
}
// MARK: - Drink
struct Drink: Codable {
    let strCategory: String
}
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UIGestureRecognizerDelegate{
    @IBOutlet weak var tableView: UITableView!
    
    @IBOutlet weak var btnDone: UIButton!
    var datas = [[String : Any]]()
    var category = [Drink]()
    override func viewDidLoad() {
        super.viewDidLoad()
       
        self.getCategories()

    }

    func getCategories() {
        let url = URL(string: "https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
        
        URLSession.shared.dataTask(with: url!) { (data, response, error) in
            
            if error == nil {
                do {
                    self.category = try JSONDecoder().decode(Categories.self, from: data!).drinks
                    for i in 0..<self.category.count
                    {
                        self.datas.append(["name":self.category[i].strCategory, "status":"0"])
                    }
                    DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                } catch {
                    print(error)
                }
            }
        }.resume()
    }
    
    @IBAction func btnDone(_ sender: Any) {
        var selectedCatgry = [String]()
        for i in 0..<datas.count
        {
            let rowVal = datas[i]
            if rowVal["status"] as! String == "1"{
                selectedCatgry.append(rowVal["name"] as! String)
            }
        }
        print(selectedCatgry)
    }
    

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return datas.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! cell
        
            let val = datas[indexPath.row]
            cell.descriptionName.text = (val["name"] as! String)
            if (val["status"] as! String) == "1"{
                cell.btnSelect.setImage(UIImage(systemName: "circle.fill"), for: .normal)
            }else{
                cell.btnSelect.setImage(UIImage(systemName: "circle"), for: .normal)
            }
            cell.btnSelect.addTarget(self, action: #selector(subscribeTapped(_:)), for: .touchUpInside)
        cell.btnSelect.tag = indexPath.row
        return cell
    }
    
    
    @objc func subscribeTapped(_ sender: UIButton){
        var sel = datas[sender.tag]
        datas.remove(at: sender.tag)
        if sel["status"] as! String == "1"{
            sel.updateValue("0", forKey: "status")
        }else{
            sel.updateValue("1", forKey: "status")
        }
        datas.insert(sel, at: sender.tag)
        tableView.reloadData()
    }
}
    class cell: UITableViewCell {
     
        @IBOutlet weak var btnSelect: UIButton!
        @IBOutlet weak var descriptionName: UILabel!
        
    }

导入UIKit
结构类别：可编码{
让我们喝一杯：[喝一杯]
}
//马克：喝酒
结构：可编码{
让strCategory:String
}
类ViewController:UIViewController、UITableViewDataSource、UITableViewDelegate、UIGestureRecognitizerDelegate{
@IBVAR表格视图：UITableView！
@IBOUTLE弱var btnDone:UIButton！
变量数据=[[String:Any]]（）
变量类别=[饮料]（）
重写func viewDidLoad（）{
super.viewDidLoad（）
self.getCategories（）
}
func getCategories（）{
让url=url（字符串：https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
URLSession.shared.dataTask（带有：url！）{（数据、响应、错误）在
如果错误==nil{
做{
self.category=尝试JSONDecoder（）.decode（Categories.self，from:data！）。饮料
对于0..UITableViewCell中的i{
让cell=tableView.dequeueReusableCell（带有标识符：“cell”，for:indexPath）作为！cell
设val=datas[indexPath.row]
cell.descriptionName.text=（val[“name”]as！String）
如果（val[“status”]as！String）=“1”{
cell.btnSelect.setImage（UIImage（系统名：“circle.fill”），用于：。正常）
}否则{
cell.btnSelect.setImage（UIImage（系统名称：“圆圈”），用于：。正常）
}
cell.btselect.addTarget（self，action:#选择器（subscribeTapped（：）），for:.touchUpInside）
cell.btnSelect.tag=indexPath.row
返回单元
}
@objc func subscribeTapped（uu发送方：ui按钮）{
var sel=datas[sender.tag]
datas.remove（位于：sender.tag）
如果选择[“状态”]为！字符串==“1”{
选择更新值（“0”，分叉：“状态”）
}否则{
选择更新值（“1”，分叉：“状态”）
}
插入数据（sel，at:sender.tag）
tableView.reloadData（）
}
}
类别单元格：UITableViewCell{
@IBOutlet弱var B选择：UIButton！
@IBVAR描述名称：UILabel！
}

请尝试以下代码：

复选框类：

 class CheckBox: UIButton
 {
    override func awakeFromNib()
    {
        let checkedImage = UIImage(named: "checked-image")! as UIImage
        let uncheckedImage = UIImage(named: "unchecked-image")! as UIImage
        
        self.setImage(uncheckedImage, for: .normal)
        self.setImage(checkedImage, for: .selected)
        
        self.addTarget(self, action: #selector(buttonClicked), for: .touchUpInside)
        self.isSelected = true
    }
    
    @objc func buttonClicked(sender: UIButton)
    {
        if sender == self {
            
            sender.isSelected = !sender.isSelected
        }
    }
 }

class FilterViewController: UIViewController
{

    var categories = [Category]()
    var selectedCategories = [String]()
    var selectedCategories : NSMutableArray = NSMutableArray()

    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var applyButton: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        getCategories()
    }
    
  @IBAction func applyButtonClicked(_ sender: UIButton) {
      print("Filter applied")
      // save checked buttons
    print("Selected Categories =", selectedCategories)
  }
    
    func getCategories() {
        let url = URL(string: "https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
        
        URLSession.shared.dataTask(with: url!) { (data, response, error) in
            
            if error == nil {
                do {
                    self.categories = try JSONDecoder().decode(Categories.self, from: data!).drinks
                    
                    DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                } catch {
                    print(error)
                }
            }
        }.resume()
    }

    }
    
    extension FilterViewController: UITableViewDelegate, UITableViewDataSource
     {
        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            return categories.count
        }
        
        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            
            let cell = tableView.dequeueReusableCell(withIdentifier: "categoryCell", for: indexPath) as! CategoryCell
            
            cell.categoryLabel.text = categories[indexPath.row].strCategory
            cell.styleButton()
            
            return cell
        }
    
        func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
        {
            if selectedCategories.contains(categories[indexPath.row].strCategory) {
                selectedCategories.remove(categories[indexPath.row].strCategory)
            }else{
                selectedCategories.add(categories[indexPath.row].strCategory)
            }
        }
    }

Tableview类：

 class CheckBox: UIButton
 {
    override func awakeFromNib()
    {
        let checkedImage = UIImage(named: "checked-image")! as UIImage
        let uncheckedImage = UIImage(named: "unchecked-image")! as UIImage
        
        self.setImage(uncheckedImage, for: .normal)
        self.setImage(checkedImage, for: .selected)
        
        self.addTarget(self, action: #selector(buttonClicked), for: .touchUpInside)
        self.isSelected = true
    }
    
    @objc func buttonClicked(sender: UIButton)
    {
        if sender == self {
            
            sender.isSelected = !sender.isSelected
        }
    }
 }

class FilterViewController: UIViewController
{

    var categories = [Category]()
    var selectedCategories = [String]()
    var selectedCategories : NSMutableArray = NSMutableArray()

    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var applyButton: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        getCategories()
    }
    
  @IBAction func applyButtonClicked(_ sender: UIButton) {
      print("Filter applied")
      // save checked buttons
    print("Selected Categories =", selectedCategories)
  }
    
    func getCategories() {
        let url = URL(string: "https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
        
        URLSession.shared.dataTask(with: url!) { (data, response, error) in
            
            if error == nil {
                do {
                    self.categories = try JSONDecoder().decode(Categories.self, from: data!).drinks
                    
                    DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                } catch {
                    print(error)
                }
            }
        }.resume()
    }

    }
    
    extension FilterViewController: UITableViewDelegate, UITableViewDataSource
     {
        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            return categories.count
        }
        
        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            
            let cell = tableView.dequeueReusableCell(withIdentifier: "categoryCell", for: indexPath) as! CategoryCell
            
            cell.categoryLabel.text = categories[indexPath.row].strCategory
            cell.styleButton()
            
            return cell
        }
    
        func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
        {
            if selectedCategories.contains(categories[indexPath.row].strCategory) {
                selectedCategories.remove(categories[indexPath.row].strCategory)
            }else{
                selectedCategories.add(categories[indexPath.row].strCategory)
            }
        }
    }

---

请尝试以下代码：

复选框类：

 class CheckBox: UIButton
 {
    override func awakeFromNib()
    {
        let checkedImage = UIImage(named: "checked-image")! as UIImage
        let uncheckedImage = UIImage(named: "unchecked-image")! as UIImage
        
        self.setImage(uncheckedImage, for: .normal)
        self.setImage(checkedImage, for: .selected)
        
        self.addTarget(self, action: #selector(buttonClicked), for: .touchUpInside)
        self.isSelected = true
    }
    
    @objc func buttonClicked(sender: UIButton)
    {
        if sender == self {
            
            sender.isSelected = !sender.isSelected
        }
    }
 }

class FilterViewController: UIViewController
{

    var categories = [Category]()
    var selectedCategories = [String]()
    var selectedCategories : NSMutableArray = NSMutableArray()

    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var applyButton: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        getCategories()
    }
    
  @IBAction func applyButtonClicked(_ sender: UIButton) {
      print("Filter applied")
      // save checked buttons
    print("Selected Categories =", selectedCategories)
  }
    
    func getCategories() {
        let url = URL(string: "https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
        
        URLSession.shared.dataTask(with: url!) { (data, response, error) in
            
            if error == nil {
                do {
                    self.categories = try JSONDecoder().decode(Categories.self, from: data!).drinks
                    
                    DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                } catch {
                    print(error)
                }
            }
        }.resume()
    }

    }
    
    extension FilterViewController: UITableViewDelegate, UITableViewDataSource
     {
        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            return categories.count
        }
        
        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            
            let cell = tableView.dequeueReusableCell(withIdentifier: "categoryCell", for: indexPath) as! CategoryCell
            
            cell.categoryLabel.text = categories[indexPath.row].strCategory
            cell.styleButton()
            
            return cell
        }
    
        func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
        {
            if selectedCategories.contains(categories[indexPath.row].strCategory) {
                selectedCategories.remove(categories[indexPath.row].strCategory)
            }else{
                selectedCategories.add(categories[indexPath.row].strCategory)
            }
        }
    }

Tableview类：

 class CheckBox: UIButton
 {
    override func awakeFromNib()
    {
        let checkedImage = UIImage(named: "checked-image")! as UIImage
        let uncheckedImage = UIImage(named: "unchecked-image")! as UIImage
        
        self.setImage(uncheckedImage, for: .normal)
        self.setImage(checkedImage, for: .selected)
        
        self.addTarget(self, action: #selector(buttonClicked), for: .touchUpInside)
        self.isSelected = true
    }
    
    @objc func buttonClicked(sender: UIButton)
    {
        if sender == self {
            
            sender.isSelected = !sender.isSelected
        }
    }
 }

class FilterViewController: UIViewController
{

    var categories = [Category]()
    var selectedCategories = [String]()
    var selectedCategories : NSMutableArray = NSMutableArray()

    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var applyButton: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        getCategories()
    }
    
  @IBAction func applyButtonClicked(_ sender: UIButton) {
      print("Filter applied")
      // save checked buttons
    print("Selected Categories =", selectedCategories)
  }
    
    func getCategories() {
        let url = URL(string: "https://www.thecocktaildb.com/api/json/v1/1/list.php?c=list")
        
        URLSession.shared.dataTask(with: url!) { (data, response, error) in
            
            if error == nil {
                do {
                    self.categories = try JSONDecoder().decode(Categories.self, from: data!).drinks
                    
                    DispatchQueue.main.async {
                        self.tableView.reloadData()
                    }
                } catch {
                    print(error)
                }
            }
        }.resume()
    }

    }
    
    extension FilterViewController: UITableViewDelegate, UITableViewDataSource
     {
        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            return categories.count
        }
        
        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            
            let cell = tableView.dequeueReusableCell(withIdentifier: "categoryCell", for: indexPath) as! CategoryCell
            
            cell.categoryLabel.text = categories[indexPath.row].strCategory
            cell.styleButton()
            
            return cell
        }
    
        func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
        {
            if selectedCategories.contains(categories[indexPath.row].strCategory) {
                selectedCategories.remove(categories[indexPath.row].strCategory)
            }else{
                selectedCategories.add(categories[indexPath.row].strCategory)
            }
        }
    }

---

您是否在询问如何在应用程序启动之间保留用户数据/选择？我想区分哪些单元格在用户按下“应用”时显示“选中图像”按钮。然后从每个选定单元格中获取categoryLabel并将其保存在数组中。您是否询问如何在应用程序启动之间保留用户数据/选择？我想区分哪些单元格在用户按下“应用”时显示“选中图像”按钮。然后从每个选定单元格中获取categoryLabel并将其保存在数组中。它不会保存显示“选中图像”的单元格，而是点击cellsOk，您如何选择选中的单元格或具有“选中图像”的单元格？另外，您能否共享单元格。styleButton（）代码？它不会保存显示“选中图像”的单元格显示，但点击了cellsOk