custom checkbox in uicollectionviewcell swift ios - ios

Question

hi i working on food app, the app has foods in collectionviewcell and i added checkbox in cell so how i can select some foods from cell by checkbox ,
i add the checkbox in collection view cell and add class for button but when i click on checkbox in first cell the all other cells is selected,
the checkbox code
var isCheckedGlobal = Bool() // !! Global Variable // You might need to change '= Bool()' to '= false' or '= true'
class CheckBox: UIButton {
//images
let checkedImage = UIImage(named: "checked") as UIImage?
let unCheckedImage = UIImage(named: "unchecked")as UIImage?
//bool propety
var isChecked:Bool = false{
didSet{
if isChecked == true{
self.setImage(checkedImage, forState: .Normal)
}else{
self.setImage(unCheckedImage, forState: .Normal)
}
}
}
override func awakeFromNib() {
self.addTarget(self, action: "buttonClicked:", forControlEvents: UIControlEvents.TouchUpInside)
self.isChecked = false
}
func buttonClicked(sender:UIButton) {
if(sender == self){
if isChecked == true{
isChecked = false
isCheckedGlobal = false // !! Set variable's value
}else{
isChecked = true
isCheckedGlobal = true // !! Set variable's value
}
}
}
}
and in collectionview this code
if let foodcodes = self.menu![indexPath.row]["code"] as? NSString {
if isCheckedGlobal == false {
cell.foodNumber.enabled = false
cell.foodNumber.text = ""
} else {
if cell.foodNumber.tag == cell.checkboxx.tag {
cell.foodNumber.enabled = true
cell.foodNumber.text = "1"
}
}
}

Answer 1

1.First make a global mutable array like arrSelectedCells
2.Now in UICollectionView cellForRow set indexpath.row value as a tag to checkbox button.
3.In buttonClicked action, get the tag value from button and store the tag value in arrSelectedCells and also check if the tag is present in arrSelectedCells if it's present then remove it.So that multiple same value tag are not present in arrSelectedCells.
4.Now,UICollectionView cellForRow , check if indexpath.row value is present in arrSelectedCells if present then enable the check-box otherwise disable the check-box.