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Using BSD Sockets in Swift Sep 24 2019

Apple provides many useful network frameworks. Network.framework (you can check my previous article on Network.framework if you want to see an example) is the latest. But sometimes we need to go deeper, and the abstractions might get in the way. In...

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Understanding Objective-C and Swift interoperability Sep 16 2019

There are many reasons to use more than one programming language in a project. In some cases, a lot of work has gone into building a framework (years maybe). Rewriting the whole framework to have the codebase in the same programming language, might...

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Building a server-client application using Apple's Network Framework Sep 10 2019

Apple’s network APIs are many, the older APIs are well documented, and you’ll find lots of examples. Not so much about the new Network framework. One factor might be that the name is not that search-friendly. In this post, I’ll explain how to use the...

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Understanding a few concepts of macOS applications by building an agent-based (menu bar) app Sep 3 2019

With advances in the frameworks and tools we use to develop software, creating a new app seems like magic. We just click a few buttons, and everything is created for us. I enjoy magic, but I think that sometimes we end up being Framework “users” without...

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Using Xcode's visual debugger and Instruments' modules to prevent memory overuse Aug 27 2019

An essential step before you deliver your application to your users is to make sure that your app is not overusing your user’s resources. In this post, I’ll show how to use Xcode’s visual debugger and the command-line counterparts to check for common...

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Understanding XCUITest screenshots and how to access them Aug 20 2019

Getting the screenshots of your app doesn’t need to be complicated, and it shouldn’t require you to install additional applications to do it. Sure you can use any other third-party library, but sometimes simple is better. Also, it is always fun to...

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Automating build and TestFlight upload for simple iOS apps Aug 13 2019

Sometimes we only want to do the simplest of tasks of build and upload to TestFlight without having to spend much time doing lots of configuration. Maybe we are only testing a minimum viable product (MVP) and want to make it accessible to beta users...

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Solutions to common scenarios when using UITextField on iOS Aug 5 2019

At some point on your app development career, you’ll find yourself working with text fields to get some data from the user. Collecting data from the user sometimes involves additional work than merely reading text from an UITextField. For example,...

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Building a CLI tool using Swift and Vapor's Console module Jul 30 2019

Building a command-line interface (CLI) tools is a complicated task. We work on the logic of our application and also have to deal with other details like parsing parameters, handling the correct display directives depending on the TTY, etcetera. Vapor...

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Using Swift for scripting Jul 23 2019

Swift is a powerful language. It can be used to create command-line tools, iOS apps, watch OS apps, macOS apps and server-side applications. However, sometimes, we only need to complete a small task, maybe do some automation on our local setup or build...

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