Handling color spaces in Cocoa and Quartz just takes a little familiarity to be done properly.read more
Someday, you’ll be sitting at your desk, minding your own business.
Your boss, or a client, will come in and start explaining this cool new IoT project you’ll be working on. As you listen, the timeline splits:
In the Darkest Timeline, no one on your team knows about what’s discussed in this book. Your boss/client starts specifying requirements that sound cool to them, but are really bad ideas in ways that aren’t immediately evident. Your team builds the project as it was specified, and it fails in the marketplace because of mistakes that could have been avoided.
In the Prime Timeline, you’ve read this book.read more
At WWDC this year Apple engineers gave a talk about their new Unified Logging and Activity Tracing APIs which is definitely worth checking out. I know logging isn’t exactly going to steal the headlines away from Siri integration or watchOS 3, but as a developer it’s a valuable debugging tool and the changes in these APIs look to save some significant time while debugging crashes and squashing bugs.read more
Here are some papers, articles, and blog posts that I’ve found especially interesting recently. Check them out.read more
A few months ago I stumbled across across an interesting open source project created by Katrina Owen called exercism.io that provides a collection of programming practice problems in over 30 languages. On the surface, it’s a great resource for learning to code or learning a new language. I’ve found however that as you dig deeper it has much more to offer on a number of levels.read more
There’s been a lot of talk this year about bots and conversational interfaces becoming an increasingly important tool for software developers. A few years ago I wrote about a twitterbot that I created, and I’ve just pulled out all of the common logic into a Python framework that you can use to quickly create your own twitterbots by focusing on just the bits that make your bot unique.
Check out ‘nanobot’.read more
Last time, we decided to embark on a brave new adventure and give our Django framework a big upgrade with the inclusion of Django Channels. We got just far enough to get the development server running, but while this may be an *adequate* start, it’s better to develop against something like what we intend to deploy, right?
So, let’s go the rest of the way and get ready to develop against something that at least resembles a standard production-ready environment with Django Channels.read more
You stare mournfully into the mass of code you’ve inherited. At some point, it’s clear, the requirements called for the server to push information to the client, because there’s an unholy mix of Server-Side Events, long-polling, hidden iframes and even a Java applet in there, all supporting some level of long-term connectivity with the server. It’s almost fascinating in its barely functional hideousness, and you would be inclined to leave well enough alone… except for the *new* feature specifications you’ve been assigned, which require the client to be able to send data back to the server in response to the received events, in as close to real-time as you can get.
It’s time for a major overhaul.read more
Filtering tables of data is the central task of many a business web-app. This is the first of a series of tutorials on using Bootstrap radio buttons in the wild to filter real datasets in concert with other commonly-used UI components like DataTables and jQuery UI.read more
A long time ago, asynchronous programming was an exotic practice. Not many people were doing it, and their code was punctuated with things like assembly language and processor interrupts. Less anciently, preemptive multitasking OS’s made asynchronous programming more accessible, albeit often still with arcane and unnatural boilerplate, not to mention hazards of sharing mutable data. (read more…)read more
Recently, I’ve been working on a project for a long-time client who came to us with a request that we haven’t seen in a while–we were tasked with taking their existing application written in C++ using the JUCE application framework into two separate...read more
A normal user is going to click your button.
The user won’t see any kind of error message, which is maybe what you intended, but on the other hand, the button will seem to do nothing. The user will have no way of knowing whether she did anything wrong. The user will try it several times out of desperation. Then the user will attempt to contact you… No, actually that part may never happen. Then the user will close your app and go to bed because there is no conceivable way to determine what’s wrong or even if there is something wrong, and it’s literally too much trouble to ask. You’ll never know there’s a problem until nine months later when the user has to call you about a completely unrelated matter…read more
With the release of the iPhone SE and the iPad Pro, along with the expectation that iPad apps will include support for slide over and split screen mode it’s now clear that Auto Layout is here to stay. If you’re not already developing apps using Auto Layout and Size Classes now is a great time to learn more about them and prepare yourself for any updates to the APIs that Apple introduces at WWDC in June.
Fortunately there’s a lot of great resources to quickly get up to speed and learn the best way to support a variety of devices and size classes in your next app.read more
So I’m building these web apps in my spare time (because that’s what I do), and I’m adding RSS feeds for certain types of updates, et cetera. But when I think of my immediate friends and family, I don’t picture them using RSS.
So, on a whim, I type into Google something like “Who uses RSS?” But all the articles start with something more like “Who uses RSS any more?”read more
Will hearables be the next big thing? One recent study by Juniper Research suggests that it could reach $5 billion in revenue by 2020. That’s quite a leap from the current revenue of roughly $1 billion worldwide. But what are hearables and why would you want to develop this kind of IoT device?
You’ll see three kinds of hikers on the trail: The ones who seem to float on their tippy-toes from the crest of one granite stone to the next; the ones who seem to swim up through the leaf and boulder strewn path like fish gracefully navigating invisible waters; and those who look miserable — jolted with every step as the stutter and drop and climb, gracelessly jarring knees and ankles and backs.