Restrict table view unless select all cell in swift - ios

Question

i have a table view in which i'm populating data getting from my service. the data is totally dynamic and table view contain sections and cell under it all the things are dynamic. I have a button action outside the table view which is used to add the selected cell data. Now i want to restrict the button that it does not add the data till all the cell under the sections are selected. I want user to first check the cells and than add through add button. My code for the table view is this,
func numberOfSections(in tableView: UITableView) -> Int {
return AddonCategoryModel!.count
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return AddonCategoryModel![section].name
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 34
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 50
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return AddonCategoryModel![section].addonItems.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = addonTableView.dequeueReusableCell(withIdentifier: "addonCell", for: indexPath) as! RestaurantMenuDetailAddonTVC
cell.addonTitleLbl.text = AddonCategoryModel![indexPath.section].addonItems[indexPath.row].name
cell.priceLbl.text = String(AddonCategoryModel![indexPath.section].addonItems[indexPath.row].price)
if selection[indexPath.section].isSelected[indexPath.row] {
cell.radioBtn.setImage(UIImage (named: "radio"), for: UIControlState.normal)
addonItemName = cell.addonTitleLbl.text!
addonItemprice = AddonCategoryModel![indexPath.section].addonItems[indexPath.row].price
addonItemId = AddonCategoryModel![indexPath.section].addonItems[indexPath.row].addonPKcode
addonItemNameArray.append(addonItemName)
addonItemPriceArray.append(addonItemprice)
addonItemIdArray.append(addonItemId)
let defaults = UserDefaults.standard
defaults.set(addonItemName, forKey: "addonItemName")
defaults.set(addonItemprice, forKey: "addonItemPrice")
defaults.set(addonItemId, forKey: "addonItemId")
defaults.synchronize()
}
else {
cell.radioBtn.setImage(UIImage (named: "uncheckRadio"), for: UIControlState.normal)
}
cell.radioBtn.tag = indexPath.row
// cell.radioBtn.addTarget(self, action: #selector(checkBoxSelection(_:)), for: .touchUpInside)
cell.selectionStyle = .none
cell.backgroundColor = UIColor.clear
return cell
}
My screen looks like this,

Answer 1

Basically, you have to set selected true and false based on user have selected the row or deselected the row, then just check in your data set is anything selected if yes then make the button highlighted/enable else disable/unhighlighted
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
selection[indexPath.section].isSelected = true
tableView.reloadData()
CheckIfAnyOneIsSelected()
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
selection[indexPath.section].isSelected = false
tableView.reloadData()
CheckIfAnyOneIsSelected()
}
func CheckIfAnyOneIsSelected() {
//loop through your array and check if anyone is selected if yes break the loop and set the button to enable
//else make the button disable
var anyOneSelecte = false
for singleModel in AddonCategoryModel {
for item in addonItems {
if item.isSelected == true
anyOneSelecte = true
break;
}
}
if anyOneSelecte {
//enable your button
} else {
//disable your button
}
}

Answer 2

I have created demo, Let's say you have two Model classes,
class AddOnCategoryModel {
var name: String = ""
var arrValues = [Category]()
init(name: String) {
self.name = name
}
}
class Category {
var name: String = ""
var price : String = ""
var isSelected: Bool = false
}
and following is the mainArray,
for i in 0...2 {
let model = AddOnCategoryModel(name: "Section \(i)")
for j in 0...3 {
let cate = Category()
cate.name = "Category \(j)"
model.arrValues.append(cate)
}
mainArray.append(model)
}
Now considering you have following ListTableCell
There are two IBOutlets
#IBOutlet weak var lblTemp: UILabel!
#IBOutlet weak var btnRadio: UIButton!
FYI. Please set btnRadio default and selected image properly.
Your UITableViewDataSource methods,
func numberOfSections(in tableView: UITableView) -> Int {
return mainArray.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return mainArray[section].arrValues.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "ListTableCell") as! ListTableCell
let category = mainArray[indexPath.section]
cell.lblTemp.text = category.arrValues[indexPath.row].name
cell.btnRadio.tag = indexPath.row
cell.tag = indexPath.section
cell.btnRadio.addTarget(self, action: #selector(btnRadioTapped), for: .touchUpInside)
return cell
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 50
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return mainArray[section].name
}
Please find btnRadioTapped method,
#objc func btnRadioTapped(_ sender: UIButton) {
sender.isSelected = !sender.isSelected
let cell = sender.superview?.superview as! ListTableCell
let addOnModel = mainArray[cell.tag]
let category = addOnModel.arrValues[sender.tag]
category.isSelected = sender.isSelected
}
Not let's check all checkbox's are selected or not in button tap event like this,
#IBAction func btnTapped(_ sender: UIButton) {
var isCheckedAll = true
for (_ , item) in mainArray.enumerated() {
let value = item.arrValues.filter({$0.isSelected==false})
if value.count > 0 {
isCheckedAll = false
break;
}
}
print("Done ", isCheckedAll)
}
It will return true if all radioButtons are selected, and return false if any one radioButton is not selected.
Let me know in case of any queries. This is just demo, you have to do minor changes as per your final requirements.
UPDATE
Please find didSelectRowAt indexPath method below,
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let model = mainArray[indexPath.section]
let category = model.arrValues[indexPath.row]
category.isSelected = !category.isSelected
let cell = tableView.cellForRow(at: indexPath) as! ListTableCell
cell.btnRadio.isSelected = category.isSelected
}