Understanding Higher Order Functions in Swift
Welcome to a new and interesting enough programming tutorial! Swift is a rich-featured language and it couldn’t be missing a great feature such as the higher order functions. According to Wikipedia: In mathematics and...
Unable to Set Layout Constraint to Zero in Xcode 11.3
If you’ve upgraded to Xcode 11.3 and you use Interface Builder to create the app UI, you may find it impossible to set the value of spacing constraints to zero. Just open Interface Builder and click “Add new...
Working with JSON and Codable in Swift 5
First, what’s JSON? JSON (short for JavaScript Object Notation) is a text-based, lightweight, and easy way for storing and exchanging data. It’s commonly used for representing structural data and data interchange in...
A Practical Approach on Using Swift Package Manager in Xcode
Welcome to a new tutorial where I’m going to show you a practical approach on how to create your own Swift packages. If you’re not familiar with that term, a Swift package wraps up code that can be reused in projects,...
macOS Programming: Using Menus and the Toolbar
Another macOS programming tutorial is here, and today we’re going to talk about a really interesting topic: Menus. Every macOS developer has to know about how to deal with menus, as they consist of a fundamental part on...
A Complete Guide to In-App Purchases for iOS Development
Hello folks! In a time where the App Store is full of apps, users have more than plenty of options to choose from. There is a lot of competition on all kind of apps, and users want to try them before they decide whether they like...
SwiftUI Tip: How to Create a Context Menu in iOS 13
Earlier, Apple officially released iOS 13 to the public. Apart from dark mode and other new features, the latest version of iOS also introduces us a new way known as Context Menu to interact with the device. A context menu is...
The Comprehensive Guide to the State Management in iOS
There are many challenges in the software development, but there is one beast that tends to screw things up much more often than the others: the problem of app’s state management and data propagation. So what can go wrong with...
Using Swift Protocols to Manage App Configuration
Hello and welcome to a new tutorial! One of the most common concepts met and used in Swift by all developers is protocols, and I don’t think there’s even one developer who doesn’t know about them. Protocols can...
Building a Flutter App with Complex UI
Hello there! Welcome to the second tutorial of our Flutter series. In the last tutorial, you learned the basics of building a Flutter app. So if you have not gone through it, please take a pit stop here, visit it first before...