Converting frames between view coordinate systems

How scroll views work on macOS

If you’ve ever developed an iOS application, I’m guessing that you’ve built a table- or collection view…

Setting a background color to an NSView

macOS (formerly known as OS X) development has always been a passion project for me; it is…

How to write an NSViewController without interface builder on macOS.

How to make a label in macOS

A common UI element when developing applications is the label. In both iOS and tvOS, this element is called…

Rails API and Facebook login (featuring Doorkeeper and OAuth 2 authorization).

When it comes to add Facebook login to Rails application there’re tons of guides and examples how to do it using Devise and Omniauth gems. That works well when you need to make it work with…

Hitting the sweet spot of inspiration

Before I tell my story, I want to use a sentence to introduce myself, as this is my first Medium post. My name is Christoffer Winterkvist, I work as an iOS Developer together with a team of super talented individuals at Hyper, located in the heart of Oslo. Enough…

Getting paid to do Open Source.

This article should have been written a long time ago but as it so happens, time flies when you are…

Designing for tvOS vs other devices with interaction in mind

Why I wrote the Family framework

When building applications on Apple’s platform, what you get out of the box is a model view controller…