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June 2, 2020 09:19
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How to maintain checkbox state when scrolling uitableview
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| // | |
| // ViewController.swift | |
| // addCheckBoxonTable-Tutorial | |
| // | |
| // Created by Aman Aggarwal on 2/1/18. | |
| // Copyright © 2018 iostutorialjunction.com. All rights reserved. | |
| // | |
| import UIKit | |
| class ViewController: UIViewController, UITableViewDataSource { | |
| @IBOutlet weak var tblList: UITableView! | |
| var selectedRows = [IndexPath]() | |
| override func viewDidLoad() { | |
| super.viewDidLoad() | |
| // Do any additional setup after loading the view, typically from a nib. | |
| tblList.dataSource = self | |
| } | |
| func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { | |
| return 10 | |
| } | |
| func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { | |
| let cell = tableView.dequeueReusableCell(withIdentifier: "CheckBoxCell") | |
| if let lbl = cell?.contentView.viewWithTag(1) as? UILabel { | |
| lbl.text = "item-\(1)" | |
| } | |
| if let btnChk = cell?.contentView.viewWithTag(2) as? UIButton { | |
| btnChk.addTarget(self, action: #selector(checkboxClicked(_ :)), for: .touchUpInside) | |
| btnChk.isSelected = false | |
| if selectedRows.contains(indexPath) { | |
| btnChk.isSelected = true | |
| } | |
| } | |
| return cell! | |
| } | |
| @objc func checkboxClicked(_ sender: UIButton) { | |
| sender.isSelected = !sender.isSelected | |
| let point = sender.convert(CGPoint.zero, to: tblList) | |
| let indxPath = tblList.indexPathForRow(at: point) | |
| if selectedRows.contains(indxPath) { | |
| selectedRows.remove(at: selectedRows.index(of: indxPath)!) | |
| } else { | |
| selectedRows.append(indxPath) | |
| } | |
| tblList.reloadRows(at: [indxPath], with: .automatic) | |
| } | |
| override func didReceiveMemoryWarning() { | |
| super.didReceiveMemoryWarning() | |
| // Dispose of any resources that can be recreated. | |
| } | |
| } |
You need to maintain state of checked boxes, you can view this tutorials on
YouTube
Create CheckBox in swift 4 using Xcode 9 0 onwards
https://youtu.be/S6q5d3RvVY8
On Sun, 20 Feb 2022 at 9:51 AM, mawaddat ***@***.***> wrote:
***@***.**** commented on this gist.
------------------------------
Hi, I have exactly follow your code. But when I scroll up after selecting
any checkbox its automatically unchecked and any random check box is
selected. Could you please explain this behaviour ?
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Hi, I have exactly follow your code. But when I scroll up after selecting any checkbox its automatically unchecked and any random check box is selected. Could you please explain this behaviour ?