Different cells CollectionView rxswift - uicollectionviewcell

Question

Good evening.
Tell me please
I need to make such an implementation
Have: CollectionView
Rxswift
The maximum number of cells is 6
If there are less than 6 elements in a certain array, then the first cells are filled with one type (by the number of elements in the array), and the rest with other cells.
collectionView.register(UINib(nibName: "PhotoCollectionCell", bundle: nil), forCellWithReuseIdentifier: "PhotoCell")
collectionView.register(UINib(nibName: "EmptyCollectionCell", bundle: nil), forCellWithReuseIdentifier: "EmptyCell")

Answer 1

Please check collectionView.rx.items in UICollectionView+Rx.swift from RxCocoa
Here is the example from code itselft
let items = Observable.just([
1,
2,
3
])
items
.bind(to: collectionView.rx.items) { (collectionView, row, element) in
let indexPath = IndexPath(row: row, section: 0)
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! NumberCell
cell.value?.text = "\(element) # \(row)"
return cell
}
.disposed(by: disposeBag)
You can dequeue whatever cell you want based on the index of the row or type of the data, just like the way we did in DataSource

Answer 2

You need to import RxDataSources in case you want different cell type.
// TableView Cell Nib Register
tableView.register(R.nib.meChatCell)
tableView.register(R.nib.otherChatCell)
vm.output.chats
.bind(to: tableView.rx.items){(tv, row, item) -> UITableViewCell in
if item.userId == 0 {
let cellIdentifier = R.reuseIdentifier.meChatCell.identifier
let cell = tv.dequeueReusableCell(withIdentifier: cellIdentifier, for: IndexPath.init(row: row, section: 0)) as! MeChatCell
cell.vm = item
return cell
} else {
let cellIdentifier = R.reuseIdentifier.otherChatCell.identifier
let cell = tv.dequeueReusableCell(withIdentifier: cellIdentifier, for: IndexPath.init(row: row, section: 0)) as! OtherChatCell
cell.vm = item
return cell
}
}.disposed(by: disposeBag)
}