When the checkboxes in uitableviewcell are clicked, other cells are affected - swift

Question

I'm trying to make a filter. I got a tableview. When I click any section, it expands and collapses.
My problem is that when I open and close other sections after clicking on the checkboxes, unselected checkboxes in other sections appear as selected and selected ones are unselected. What should I do? Can you show me some code? Thanks!
https://ibb.co/0htP7Hz // Filter image
var hiddenSections = Set<Int>()
var filtersArray = Set<String>()
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCell(withIdentifier: "FilterCell", for: indexPath) as? FilterTableViewCell else
{
fatalError("Product Group Cell not found")
}
guard let item = self.filterElementListVM.itemfilterviewmodelAtIndex(indexPath) else {
return UITableViewCell()
}
cell.setupCell(title: item.definition ?? "", buttonTag: item.id ?? 0, filterArray: self.filtersArray)
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if let cell = tableView.cellForRow(at: indexPath) as? FilterTableViewCell {
let selectedFilterItem = self.filterElementListVM.itemfilterviewmodelAtIndex(indexPath)
if cell.buttonCheck.isSelected {
self.filtersArray.remove(String(selectedFilterItem?.definition ?? ""))
} else {
self.filtersArray.insert(String(selectedFilterItem?.definition ?? ""))
}
cell.buttonCheckTap()
}
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let viewHeader = UIView.init(frame: CGRect.init(x: 0.0, y: 0.0, width: tableView.frame.size.width, height: 67.0))
viewHeader.backgroundColor = .white
let filterVM : FilterViewModel = self.filterElementListVM.filterViewModelAtIndex(section)
let viewFilterHeader : ViewFilter = ViewFilter.init(title: filterVM.definition,
rightImage: UIImage.init(named: "arrow_down")!, isPropertiesChanged: false, isArrowHidden: false)
viewFilterHeader.tag = section
let tap = UITapGestureRecognizer(target: self, action: #selector(hideSection(_:)))
viewFilterHeader.addGestureRecognizer(tap)
viewHeader.addSubview(viewFilterHeader)
viewFilterHeader.snp.makeConstraints { (make) in
make.top.equalTo(7.0)
make.bottom.equalTo(0.0)
make.leading.trailing.equalTo(0)
}
return viewHeader
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 67.0
}
#objc private func hideSection(_ sender: UITapGestureRecognizer? = nil) {
guard let section = sender?.view?.tag else { return }
func indexPathsForSection() -> [IndexPath] {
var indexPaths = [IndexPath]()
for row in 0..<self.filterElementListVM.numberOfRowsInSection(section) {
indexPaths.append(IndexPath(row: row,
section: section))
}
return indexPaths
}
if self.hiddenSections.contains(section) {
self.hiddenSections.remove(section)
self.tableviewFilter.insertRows(at: indexPathsForSection(),
with: .fade)
} else {
self.hiddenSections.insert(section)
self.tableviewFilter.deleteRows(at: indexPathsForSection(),
with: .fade)
}
}

Answer 1

Looks like your configuration works wrong and when you toggle your cell old data applied to your cell. So you need to clear all your data in prepareFroReuse() method inside your UIColelctionViewCell class
More information: https://developer.apple.com/documentation/uikit/uitableviewcell/1623223-prepareforreuse