When a user swipe a cell, it becomes possible to delete it. However, the deletion occurs without animation.
Part of code in my ViewController:
override func viewDidLoad() {
super.viewDidLoad()
guard let foodCategoryDetailViewModel = foodCategoryDetailViewModel else { return }
tableView.delegate = nil
tableView.dataSource = nil
foodCategoryDetailViewModel.foodsInSelectedCategory
.bind(to: tableView.rx.items(cellIdentifier: FoodCategoryDetailTableViewCell.cellIdentifier, cellType: FoodCategoryDetailTableViewCell.self))
{ row, food, cell in
cell.foodCategoryDetailCellViewModel = foodCategoryDetailViewModel.cellViewModel(forRow: row)
}.disposed(by: disposeBag)
tableView.rx.itemDeleted.subscribe(onNext: { indexPath in
foodCategoryDetailViewModel.removeFoodFromApplication(atRow: indexPath.row)
}).disposed(by: disposeBag)
}
Part of code in my ViewModel:
class FoodCategoryDetailTableViewViewModel: FoodCategoryDetailTableViewViewModelType {
var foodsInSelectedCategory: BehaviorRelay<[Food]>
func removeFoodFromApplication(atRow row: Int) {
if let food = getFood(atRow: row) {
foodsInSelectedCategory.remove(at: row)
//remove from core data
CoreDataHelper.sharedInstance.removeFoodFromApplication(foodName: food.name!)
}
}
How to animating deleting process from tableView?
In order to animate the deleting process, you need a datasource that is designed to do that. The default datasource in RxSwift is not.
The most popular library for such a thing is RxDataSources which brings in a full blown multi-section system for animating table and collection views, but if you don't want something that elaborate, you can easily write your own.
Here is an example of a simple animatable datasource for RxSwift that uses DifferenceKit to calculate which cells must be animated on/off: (https://github.com/danielt1263/RxMultiCounter/blob/master/RxMultiCounter/RxExtensions/RxSimpleAnimatableDataSource.swift)