MVVM with Clean Architecture.

Create Infinite scrolling iOS App with MVVM arcitecure, Well-designed REST Client Networking request and Swift4 programming laguage!!!!

What is the best practices for MVVM design pattern?
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What is the best Practice for communication to a REST API with JSON?
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How to perfrom protocal orianted programming? How to creating UI Programmatically in Swift?

Swift With clean clean Architecture

Design and develop an iOS NHAwesomeMove App using Swift where,

Description:

• Use Restful APIs with back-end services #themoviedb.
• Use infinite scrolling to load more data. (Both Now Playing and Top Rated API responses are paginated).
• Use Model-View-ViewModel (MVVM) to perform .
• Use programmatically Auto-layout.
• Use Protocol oriented programming
• Software design patterns #(DI)
• Generic programming
• Don't repeat yourself

Code Sample1

 final class MovieViewModel {
    private weak var delegate: MovieViewModelDelegate?
    
    private var movies: [Movie] = []
    private var currentPage = 1
    private var total = 0
    private var isFetchInProgress = false
    
    var client : NHDataProvider!
    var pageName : String!
    init( pageName: String, client : NHDataProvider = NHClientHTTPNetworking(), delegate: MovieViewModelDelegate) {
        self.pageName = pageName
        self.client = client
        self.delegate = delegate
    }
    ....................................

Code Sample2

 final class NHClientHTTPNetworking : NHDataProvider {
   
    let session: URLSession
    
    init(session: URLSession = URLSession.shared) {
        self.session = session
    }
    
    func fetchRemote<Model: Codable>(_ val: Model.Type, url: URL,
                         completion: @escaping (Result<Codable, DataResponseError>) -> Void) {
        let urlRequest = URLRequest(url: url)
        session.dataTask(with: urlRequest, completionHandler: { data, response, error in
            guard
                let httpResponse = response as? HTTPURLResponse,
                httpResponse.hasSuccessStatusCode,
                let data = data
                else {
                    completion(Result.failure(DataResponseError.network))
                    return
            }
            guard let decodedResponse = try? JSONDecoder().decode(Model.self, from: data) else {
                completion(Result.failure(DataResponseError.decoding))
                return
            }
            completion(Result.success(decodedResponse))
        }).resume()
    }
}

Contributing

Pull requests are welcome. For incress efficency. If you find an issue, just open a ticket.

Please make sure to update tests as appropriate.

Contact with Me

Hi! Right now i have 4 years+ experience iPhone application development/Xcode App Update / Bug Fixes. my 7 development apps almost App store top leading app.Stackoverflow 6000+ reputation for 150+ accepted and voted answer. I love to write clean code that is help to understand new developer to enhance the app easily in future.

Thanks you
Nazmul Hasan
Sr. software engineer, iOS
Skype: nazmulkp1
Mail: nazmulcsharp@gmail.com
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