https://github.com/tryswift/RxPagination

The demo project for "Protocol-Oriented Programming in Networking".
https://github.com/tryswift/RxPagination

Last synced: about 2 months ago
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The demo project for "Protocol-Oriented Programming in Networking".

• Host: GitHub
• URL: https://github.com/tryswift/RxPagination
• Owner: tryswift
• License: mit
• Created: 2016-03-12T06:07:32.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2017-10-12T16:39:58.000Z (about 7 years ago)
• Last Synced: 2024-08-04T01:12:36.323Z (5 months ago)
• Language: Swift
• Size: 158 KB
• Stars: 364
• Watchers: 17
• Forks: 24
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-rxswift - RxPagination - Oriented Programming in Networking". (Libraries)

README

        
# RxPagination

This is the demo project for my presentation at try! Swift conference 2016.

- Slides: https://speakerdeck.com/ishkawa/protocol-oriented-programming-in-networking

- Video: https://news.realm.io/news/tryswift-yosuke-ishikawa-protocol-oriented-networking/

## Set Up

- `carthage bootstrap --platform iOS`

## Requirements

- Swift 3.0.1

- Xcode 8.1

## Summary

This demo project illustrates how to use RxSwift, Action and APIKit. The demo app fetches repositories via GitHub search API and displays them using the libraries.



### ViewModel

`PaginationViewModel` is a view model for pagination. It has an initializer with type parameter `Request`, which is constrained to conform to `PaginationRequest` protocol. When `PaginationViewModel` is instantiated via `init(baseRequest:)`, the type of its property that represents pagination elements will be inferred as `Observable<[Request.Response.Element]>`.

```swift

class PaginationViewModel {

    let indicatorViewAnimating: Driver

    let elements: Driver<[Element]>

    let loadError: Driver

    init(

        baseRequest: Request,

        viewWillAppear: Driver,

        scrollViewDidReachBottom: Driver) where Request.Response.Element == Element {...}

}

```

### ViewController

Once ViewModel is instantiated with a `Request` type parameter, remained task that ViewController have to do is binding input streams and output streams.

```swift

class SearchRepositoriesViewController: UITableViewController {

    @IBOutlet weak var indicatorView: UIActivityIndicatorView!

    private let disposeBag = DisposeBag()

    private var viewModel: PaginationViewModel!

    override func viewDidLoad() {

        super.viewDidLoad()

        let baseRequest = GitHubAPI.SearchRepositoriesRequest(query: "Swift")

        viewModel = PaginationViewModel(

            baseRequest: baseRequest,

            viewWillAppear: rx.viewWillAppear.asDriver(),

            scrollViewDidReachBottom: tableView.rx.reachedBottom.asDriver())

        disposeBag.insert([

            viewModel.indicatorViewAnimating.drive(indicatorView.rx.isAnimating),

            viewModel.elements.drive(tableView.rx.items(cellIdentifier: "Cell", cellType: RepositoryCell.self)),

            viewModel.loadError.drive(onNext: { print($0) }),

        ])

    }

}

```

## Contact

Twitter: https://twitter.com/_ishkawa