# 削除可能なテーブルセル 要RxSwift

CellRemovable.swift

import RxSwift
import UIKit

/// セルの削除が可能なプロトコル
protocol CellRemovable: class {
    var cellRemovedSubject: PublishSubject<Int> { get }
    func removeConfiguration(at indexPath: IndexPath) -> UISwipeActionsConfiguration?
}

extension CellRemovable {
    func removeConfiguration(at indexPath: IndexPath) -> UISwipeActionsConfiguration? {
        let delete = UIContextualAction(style: .destructive, title: "削除") { [weak self] (_, _, completionHandler) in
            do {
                // TODO
                completionHandler(true)
                self?.cellRemovedSubject.onNext(indexPath.row)
                self?.cellRemovedSubject.onCompleted()
            } catch {
                completionHandler(false)
            }
        }
        let swipeAction = UISwipeActionsConfiguration(actions: [delete])
        swipeAction.performsFirstActionWithFullSwipe = false
        return swipeAction
    }
}

HogeTableAdapter.swift

final class HogeTableAdapter: UITableViewDelegate, CellRemovable {
    func tableView(_ tableView: UITableView,
                   trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
        return removeConfiguration(at: indexPath)
    }
}