Core Graphics, Part 3: Lines
iOS MacConsider the humble line—just a straight sequence of pixels connecting two points. There are well-known algorithms you can use to do your own...
Core Graphics, Part 2: Contextually Speaking
iOS MacYou need to interact with the current Core Graphics context in some manner to actually draw stuff, so it's good to get comfortable with...
Core Graphics, Part 1: In the Beginning
iOS MacCore Graphics, also known by its marketing name "Quartz," is one of the oldest graphics-related APIs on the platforms. Quartz forms the foundation of...
Digging into the Swift compiler: Nerdcamp is the Shovel
iOSLearn how to be more proficient with Swift by using the Compiler. Big Nerd Ranch shares lessons learned from nerdcamp.
Core Graphics, Part 4: A Path! A Path!
iOS MacIn Core Graphics, a path is a step-by-step description of some kind of shape. It could be a circle, a square, a valentine heart,...
Articulation Accents
iOS Leveling UpIs it possible to ask a question that leads you directly to fixing a bug? If so, how do you find those questions to...
Dude, Where’s my Call?
iOS MacImagine that one day you're feeding some innocuous looking code to a Swift compiler, and then you get a smackdown of an error. Where'd...
Hannibal #selector
iOS MacThe `selector` is key to Objective-C's dynamic runtime nature. It's just a name that's used, at runtime, as a key into a dictionary of...
WWDC 2016: A Quick Look at APFS
iOS MacWWDC 2016. New Notification Center features? Eh. Bouncy sticker graphics giant emoji in Messages? Blah. New file system? ...
Hi! I’m #available!
iOS MacAs app developers, we don't have the luxury of shipping our software exclusively on the latest-and-greatest OS version. We want to use the new...
We’ve Got You Covered: Code coverage and Xcode 7
iOS MacOne of Xcode 7’s new features is in-line display of code coverage metrics. Yay? That’s a pretty dull way of describing a nice feature....
A Lurking Horror in Debugging
iOS Leveling Up Mac…and upon looking into the face of indescribable horror, a bug so unfathomably odd that it shook the foundations of all meager...
