Managing Data Flow in SwiftUI

Last week we talked about “Animations and Transitions in SwiftUI”. But it’s time to touch the crucial aspect of every app, and it is Data Flow. All the apps have data to present or mutate. Data plays a vital role in apps using SwiftUI. Every view in SwiftUI is just a function of some state, where the state is our data.

Animations in SwiftUI

SwiftUI brings declarative and straightforward approach in building User Interfaces. We have List and Form components and Bindings. All of these things make SwiftUI so easy to use and very powerful. But today we are going to talk about another feature of SwiftUI, and it is animations.

Building forms with SwiftUI

Today we are going to build a form styled layout with SwiftUI. I want to show you a real-life example of the settings screen built with SwiftUI’s new form view.

Understanding Property Wrappers in SwiftUI

Last week we started a new series of posts about SwiftUI framework. Today I want to continue this topic by covering Property Wrappers provided by SwiftUI. SwiftUI gives us @State, @Binding, @ObservedObject, @EnvironmentObject, and @Environment Property Wrappers. So let’s try to understand the differences between them and when and why which one we have to use.

Making real-world app with SwiftUI

That is WWDC week: everybody is so excited about so many new things like SwiftUI, Dark Mode, updateable Core ML models, etc. I will try to cover all the new stuff during the upcoming weeks. Let’s start with SwiftUI. SwiftUI is an entirely new approach to building apps for the Apple ecosystem.

The power of Delegate design pattern

Last week before WWDC and everybody so excited about new features which we will have just in a few days. However, let’s keep posts related to WWDC for next week. This week we are going to talk about my favorite design pattern Delegate. Delegate is the most straightforward and powerful pattern.

Storing Codable structs on the disk

Most of our apps are REST clients for some backends. During the development of this kind of apps, we want to keep it working offline. In this case, we have to cache data somewhere locally on the device to make it readable without an internet connection.

Haptic feedback in iOS apps

Feedback helps people know what an app is doing, discover what they can do next, and understand the results of actions. This week I am going to talk about the Haptic Feedback Engine which provided by Apple in most of the devices.

Extracting presentation logic to make it testable

Last week we touched the entirely new topic on my blog. This week we will continue the Unit Testing subject. One of the smells of a good architecture is the ability to cover it with Unit Tests. Today we will talk about extracting Presentation logic into testable and straightforward pieces of code.

Starting Unit Testing with Model layer

Today we are going to touch the completely new topic on my blog, and it is Unit Testing. Most of us heard about the pros of Unit Testing. I want to show how easily you can start with Unit Testing by covering your model layer. So let’s start with the definition.