tableview1.swift

import UIKit
import RxSwift
import RxCocoa

class SimpleTableViewExampleViewController : ViewController, UITableViewDelegate {
    @IBOutlet weak var tableView: UITableView!
    
    let itemsObservable = BehaviorRelay(value: (0..<5).map { "\($0)" })
    
    @objc func add() {
        let items = itemsObservable.value
        addItems(["\(items.count)"])
    }
    
    func addItems(_ newItems: [String]) {
        let items = itemsObservable.value
        itemsObservable.accept(items + newItems)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        
        navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(add))
        
        itemsObservable
            .bind(to: tableView.rx.items(cellIdentifier: "Cell", cellType: UITableViewCell.self)) { (row, element, cell) in
                cell.textLabel?.text = "\(element) @ row \(row)"
            }
            .disposed(by: disposeBag)
    }

}

tableview2.swift

import UIKit
import RxSwift
import RxCocoa

class SimpleTableViewExampleViewController : ViewController, UITableViewDelegate {
    @IBOutlet weak var tableView: UITableView!

    typealias MySectionModel = AnimatableSectionModel<String, String>
    let sectionsObservable = BehaviorRelay(value: [MySectionModel(model: "my section", items: (0..<5).map { "\($0)" })])
    
    @objc func add() {
        let sections = sectionsObservable.value
        addItems(["\(sections.first!.items.count)"])
    }
    
    func addItems(_ newItems: [String]) {
        var sections = sectionsObservable.value
        sections[0].items += newItems
        sectionsObservable.accept(sections)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        
        navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(add))
        
        let dataSource = RxTableViewSectionedAnimatedDataSource<MySectionModel>(configureCell: { (_, tableView, indexPath, element) in
            let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") ?? UITableViewCell(style: .default, reuseIdentifier: "Cell")
            cell.textLabel?.text = "\(element) @ row \(indexPath.row)"
            return cell
        })
        
        sectionsObservable
            .bind(to: tableView.rx.items(dataSource: dataSource))
            .disposed(by: disposeBag)
    }

}

tableview3.swift

import UIKit
import RxSwift
import RxCocoa

typealias MySectionModel = AnimatableSectionModel<String, String>

class MyTableViewModel {
    let sectionsObservable = BehaviorRelay(value: [MySectionModel(model: "my section", items: (0..<5).map { "\($0)" })])

    @objc func add() {
        let sections = sectionsObservable.value
        addItems(["\(sections.first!.items.count)"])
    }
    
    func addItems(_ newItems: [String]) {
        var sections = sectionsObservable.value
        sections[0].items += newItems
        sectionsObservable.accept(sections)
    }
}

class SimpleTableViewExampleViewController : ViewController, UITableViewDelegate {
    @IBOutlet weak var tableView: UITableView!
    private let viewModel = MyTableViewModel()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self.viewModel, action: #selector(MyTableViewModel.add))
        
        let dataSource = RxTableViewSectionedAnimatedDataSource<MySectionModel>(configureCell: { (_, tableView, indexPath, element) in
            let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") ?? UITableViewCell(style: .default, reuseIdentifier: "Cell")
            cell.textLabel?.text = "\(element) @ row \(indexPath.row)"
            return cell
        })
        
        viewModel.sectionsObservable
            .bind(to: tableView.rx.items(dataSource: dataSource))
            .disposed(by: disposeBag)
    }
    
}

tableview4.swift

import UIKit
import RxSwift
import RxCocoa

typealias MySectionModel = AnimatableSectionModel<String, String>

class MyTableModel {
    let itemsObservable = BehaviorRelay(value: (0..<5).map { "\($0)" })
    
    func add(items: [String]) {
        var currentItems = itemsObservable.value
        currentItems += items
        itemsObservable.accept(currentItems)
    }
}

class MyTableViewModel {
    let sectionsObservable: BehaviorRelay<[MySectionModel]>
    private let model: MyTableModel
    private let disposeBag = DisposeBag()
    
    init(model: MyTableModel) {
        self.model = model
        self.sectionsObservable = BehaviorRelay(value: [MySectionModel(model: "my section", items: model.itemsObservable.value)])
        model.itemsObservable.subscribe { [unowned self] event in
            var sections = self.sectionsObservable.value
            if let items = event.element {
                sections[0].items = items
                self.sectionsObservable.accept(sections)
            }
        }.disposed(by: disposeBag)
    }

    @objc func add() {
        let sections = sectionsObservable.value
        model.add(items: ["\(sections.first!.items.count)"])
    }
}

class SimpleTableViewExampleViewController : ViewController, UITableViewDelegate {
    @IBOutlet weak var tableView: UITableView!
    private let viewModel = MyTableViewModel(model: MyTableModel())
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: viewModel, action: #selector(MyTableViewModel.add))
        
        let dataSource = RxTableViewSectionedAnimatedDataSource<MySectionModel>(configureCell: { (_, tableView, indexPath, element) in
            let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") ?? UITableViewCell(style: .default, reuseIdentifier: "Cell")
            cell.textLabel?.text = "\(element) @ row \(indexPath.row)"
            return cell
        })
        
        viewModel.sectionsObservable
            .bind(to: tableView.rx.items(dataSource: dataSource))
            .disposed(by: disposeBag)
    }
}