Combine

In the generation of the Internet, why do you need offline first apps? Let’s discuss its importance and implementation with an example. — Background OK, let’s start with the concept offline-first apps. Offline first apps are architected in a way that they will continue working normally even during time when you have bad internet or no internet at all. Ever wondered how note-taking apps like Evernote or chatting apps like Whatsapp keep working without…

In some cases, you’ll need to combine Text into one. How do you achieve this? Using + operator There are several ways on how to achieve this. The most simple one is adding + between Text. Text overloads the + operator so you can combine them to make a new Text. Reduce Returns…

Leveraging the power of Combine to observe changes in screen brightness making barcodes & QR codes more easily scannable. — This article assumes some basic knowledge of Swift programming as well as of the Combine framework. Namely, it assumes you know what Publishers are and why you might use them. Apps which present barcodes or QR codes to be scanned frequently raise the screen brightness to maximum when presenting the…

This post illustrates two of the most common ways you can fetch remote data using swift. The traditional & Combine approach. The “traditional” approach uses the URLSession.shared.dataTask with completionHandler API. The second approach uses the URLSession.shared.dataTaskPublisher(for url: URL) which utilises Combine publisher API that the URLSession provides. Fetch — traditional way (completion handler)

Combine Framework explained most straightforwardly. — The Combine framework provides a declarative approach for how your app processes events. For example, rather than potentially implementing multiple delegate callbacks or completion handler closures, you can create a single processing chain for a given event source. Combine stands tall with its two pillars Publishers and Subscribers In many ways…

Debug choose This is from https://www.avanderlee.com/combine/runloop-main-vs-dispatchqueue-main/ receive(on:options:) RunLoop.main vs DispatchQueue.main Same > All work on main thread Different > RunLoop is binded with Object, maybe delay because of object with user interaction > DispatchQueue.main can react immediately.

SwiftUI along with Combine provides a powerful way to write beautiful apps using the best of both declarative and reactive code. In this article, we will be looking through an example of SwiftUI with MVVM wherein the binding between view and view model is achieved by Combine. First, let’s take…

SwiftUI provides us with the @StateObject property wrapper which is essential for state management. A property wrapper type that instantiates an observable object. It creates an instance for that particular view and stays alive in it or the view where you share it. The best part about @StateObject is swift…

Hello dear readers. In this story, I will show you how to use Combine and Alamofire together to implement a network reachability helper. It is possible to check network access in Swift using several different methods. I used the Alamofire NetworkReachabilityManager. It can be replaced with anything else you prefer. …