UICollectionView keeps crashing unless i set indexpath.items = 1 - swift

Question

Hi I have two codes for someone reason 1 works while the other doesn't can someone please explain why? The first function works, while the second doesn't. I'm trying to generate one cell as the type PayNowCell and every cell after that as the CheckOutCell type. However, it will only allow me to put the first cell as a CheckOutCell, the second as a PayNowCell, and every following cell as a CheckOutCell. Thanks!!! Error is index is out of bounds. And it points to this line
cell.item = checkout[indexPath.item].
Essentially i have a dynamic array checkout[] and im just trying to insert a description cell called paynow ontop of each checkoutcell while the checkout[] grows and shrinks
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if indexPath.item == 1 {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "paynow", for: indexPath) as! PayNowCell //init cells
return cell
}else{
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellId", for: indexPath) as! CheckoutCell //init cells
cell.item = checkout[indexPath.item]
return cell
}
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if indexPath.item == 0 {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "paynow", for: indexPath) as! PayNowCell //init cells
return cell
}else{
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellId", for: indexPath) as! CheckoutCell //init cells
cell.item = checkout[indexPath.item]
return cell
}
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return (checkout.count + 1) //init number of cells
}

Answer 1

Try this array for manage your collection view
var array = [0,[]]
then add
array[1] = [your array for index 1]
You can add the section for manage multi-cell inside your collection view:-
func numberOfSections(in collectionView: UICollectionView) -> Int{
return (array[section] as AnyObject).count
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return array[1].count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if indexPath.item == 0 {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "paynow", for: indexPath) as! PayNowCell //init cells
return cell
}else{
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellId", for: indexPath) as! CheckoutCell //init cells
let checkout = array[1] // pass here array
guard checkout.count != 0 else {
return cell
}
cell.item = checkout[indexPath.item]
return cell
}
}