Expandable drop down with Multi select checkbox in Swift

check / uncheck the check box by tapping the cell in table view and how to know which cell has checked or unchecked inside Expandable drop down in Swift.

VBExpandVC

class VBExpandVC: UIViewController,UITableViewDelegate,UITableViewDataSource {        @IBOutlet var myTableView: UITableView!            struct Notification:Codable {          let notification:[Headings]      }            struct Headings:Codable {          var name:String          var status:Int      }               var names = [Headings]()        var expandTableview:VBHeader = VBHeader()      var cell : VCExpandCell!            override func viewDidLoad() {          super.viewDidLoad()                    getNotifications()      }        override func didReceiveMemoryWarning() {          super.didReceiveMemoryWarning()          // Dispose of any resources that can be recreated.      }            func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?      {          expandTableview = Bundle.main.loadNibNamed("VBHeader", owner: self, options: nil)?[0] as! VBHeader          let layer = expandTableview.viewHeader.layer          layer.shadowColor = UIColor.black.cgColor          layer.shadowOffset = CGSize(width: 0, height: 1)          layer.shadowOpacity = 0.4          expandTableview.lblDate.text = self.names[section].name          expandTableview.btnExpand.tag = section          expandTableview.btnExpand.addTarget(self, action: #selector(VBExpandVC.headerCellButtonTapped(_sender:)), for: UIControl.Event.touchUpInside)            let str:String = "\(self.names[section].status)"//arrStatus[section] as! String          if str == "0"          {              UIView.animate(withDuration: 2) { () -> Void in                  self.expandTableview.imgArrow.image = UIImage(named :"switch")              }          }          else          {              UIView.animate(withDuration: 2) { () -> Void in                  self.expandTableview.imgArrow.image = UIImage(named :"switch2")              }          }            return expandTableview      }        @objc func headerCellButtonTapped(_sender: UIButton)      {          print("header tapped at:")          print(_sender.tag)          var str:String = "\(self.names[_sender.tag].status)"          if str == "0"          {              self.names[_sender.tag].status = 1          }          else          {              self.names[_sender.tag].status = 0          }  //        myTableView.reloadData()          myTableView.reloadSections([_sender.tag], with: .none)      }        func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat      {          //Return header height as per your header hieght of xib          return 40      }            func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{          let str:Int = (names[section].status)          if str == 0          {              return 0          }          return  1      }            func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{          cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as? VCExpandCell          return cell;      }        func numberOfSections(in tableView: UITableView) -> Int      {          return self.names.count      }            func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat      {          //Return row height as per your cell in tableview          return 111      }            func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {          print("selected:\(indexPath.section)")      }            // getNotifications      func getNotifications(){          guard let url = URL(string: "https://www.json-generator.com/api/json/get/cgAhRPmZgy?indent=2") else {              return          }          var request = URLRequest(url: url)          request.httpMethod = "GET"                    URLSession.shared.dataTask(with: request, completionHandler: { (data, response, error) in              guard let data = data, error == nil, response != nil else {                  return              }                            do {                  let headings = try JSONDecoder().decode(Notification.self, from: data)                  self.names = headings.notification                  DispatchQueue.main.async {                      self.myTableView.reloadData()                  }              } catch {                  print(error)              }          }).resume()      }      // End  }  

VCExpandCell

class VCExpandCell: UITableViewCell {            @IBOutlet weak var btnMobile: UIButton!      @IBOutlet weak var btnEmail: UIButton!      @IBOutlet weak var btnSms: UIButton!            override func awakeFromNib() {          super.awakeFromNib()          // Initialization code      }        override func setSelected(_ selected: Bool, animated: Bool) {          super.setSelected(selected, animated: animated)          // Configure the view for the selected state      }            @IBAction func btnMobileApp(_ sender: UIButton) {          print("mobile app checked")          print(sender.tag)          if sender.isSelected {              sender.isSelected = false          } else {              sender.isSelected = true          }      }            @IBAction func btnSMS(_ sender: UIButton) {          print("sms checked")          print(sender.tag)            if sender.isSelected {            sender.isSelected = false        } else {            sender.isSelected = true        }        }        @IBAction func btnEmail(_ sender: UIButton) {          print("email checked")          print(sender.tag)          if sender.isSelected {              sender.isSelected = false          } else {              sender.isSelected = true          }      }        }  

enter image description here

In the above code, I have two major problems.

1. selected check box positions are changing when expanded the section and expanded another section

2. Unable to find selected check boxes by tapping the cell in table view inside Expand drop down.

https://stackoverflow.com/questions/66019523/expandable-drop-down-with-multi-select-checkbox-in-swift February 03, 2021 at 08:21AM