In this article, I look at constructing Cocoa views in code using a unique syntax that offers dynamic and constant options with no syntactic overhead, support for parameters inherited through the class hierarchy, support for large numbers of optional parameters…

A unified model for cooperative cancellation of asynchronous operations

How to take advantage of Xcode configurations and define your app's settings in an organized way

Follow these simple suggestions for quicker app store approvals.

What we learned growing Winnie’s network of parents from a small private beta to a booming national community.

Apple announced Xcode 9 along with Swift 4 during the Keynote and State of the Union last week in San Jose for WWDC 2017. One of the most…

Protocol oriented programming , like functional programming is an important concept in swift . I am learning protocols in swift and I am…

Separation of concerns is a core principle when it comes to designing architectures and systems that are easy to maintain. It's the idea that each object or type should only know enough about its surroundings to do its work, and no more. However, even though…

Swift doesn’t have a built-in type for fixed-size, stack-allocated arrays. The standard library uses code generation to work around this limitation for internal use.

Using Swift arrays to only hold weak references

by Maxim Vasilevsky

And how it will improve your unit tests’ mock data

Swift 4 brought a lot of cool things like the Codable protocol. It made parsing JSON easier and painless. But some things that were simple…

This week I got a challenge from my friend Mateusz Maćkowiak to solve an issue in a diff function he created. Given two arrays, his goal…

tl;dr: yes.

We were working on an iOS app which provide paid video content. So the possibility of getting the video being recorded using the iOS 11…

The URL scheme is an interesting feature provided by the iOS SDK that allows developers to launch system apps and third-party apps through URLs. For example, let's say your app displays a phone number, and you want to make a call whenever a user taps that…

Last week I had my last appearance with talk about Swift runtime performance
[https://speakerdeck.com/krzyzanowskim/slow-swift]. I enjoy the topic, and I had
a ton of fun with preparing the speech, with the on-stage experience and
afterward discussions.
…

So, what’s QR code? I believe most of you know what a QR code is. In case you haven’t heard of it, just take a look at the above image – that’s a QR code.


QR (short for Quick Response) code is a kind of two-dimensional bar code