Markingbird is a Markdown processor written in Swift for OS X and iOS. It is a translation/port of the MarkdownSharp processor used by the Stack Overflow website.
(If you have no idea what "Markdown" and "Swift" are, you can just stop reading now.)
Repository: https://github.com/kristopherjohnson/Markingbird …
Note: At WWDC 2015, Apple announced Swift 2, which includes changes and a new feature called "protocol extensions" that render much of the code below either irrelevant or incorrect. This article applies to Swift 1.x.
Apple's new Swift programming language isn't really a functional programming language. However, it does …
As an experiment in using Apple's new Swift programming language, I whipped up a simple tip-calculator app for iOS 8.
Yes, the world really needs Yet Another Tip Calculator, and it also really needs Yet Another Swift App Example.
In addition to using Swift, the app also uses an embedded …
I am working on an iPad app that uses the ArcGIS Runtime SDK for iOS. Esri provides an easy-to-use installer and instructions for setting up the SDK so that it can be used with Xcode.
The installer puts the SDK files in the user’s home directory, and the setup …
iOS's UIColor class makes it pretty easy to specify a color using red, green, blue (RGB) and alpha components:
// set pale yellow color
label.textColor = [UIColor colorWithRed:1.0
green:1.0
blue:0.5
alpha:1.0];
However, as with many Cocoa API's, it's pretty verbose. Web developers would …
Every once in a while, I have to tell a graphic designer all the sizes needed for iOS and Android icons. So I'm putting together a summary here for easy reference.
For more details on requirements and guidelines for iOS app icons, see iOS Human Interface Guidelines: Icons and …
I have just learned about Apple's UI Automation testing framework. Unfortunately, I don't have an iOS project to work on at the moment, so I am probably going to forget all about it. This is my cheatsheet. It may not help you at all.
I recently went through the process of distributing a free custom B2B app in the App Store. I hit a few snags, and I found very little information about the process, or help in online forums, and Apple Support assistance was very slow. So I'm documenting what I learned here …
As an iOS software developer, I am often asked whether "we" (a team I'm working with, or someone I'm advising) should avoid using Objective-C and instead use a higher-level or easier-to-learn programming language. In general, my answer is "No". The rest of this post explains why.
A bit …
Mac OS X provides a pretty nice data-binding technology for developers, called Cocoa bindings. Unfortunately, the Cocoa bindings mechanism is not available to iOS developers, so iOS developers have to spend a lot of time writing code to keep user-interface elements and data in sync.
However, while Cocoa Bindings is …
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