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Tag: Dev Juice

Ridiculous moments in Apple development

In the Apple world, UTI refers to universal type identifiers. It's a hierarchical system that has replaced MIME types and file extensions to describe types of data, whether applications or images, movies or audio. They were first introduced in OS X 10.4 and now are used across both iOS and OS X. U...

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DevJuice: A quick review of Effective Objective-C 2.0 by Matt Galloway

London-based Matt Galloway, a regular presence on Stack Overflow, has published Effective Objective-C 2.0. A collection of 52 "specific ways" to improve your coding for Mac and iOS, this book provides a valuable collection of handy state-of-the-art tips that will appeal to all developers both esta...

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DevJuice: StickyJots for iOS developers

StickyJots provide a low-tech way for you to brainstorm iOS app interfaces. Dave Caolo asked me the other day whether we had covered them before and I was pretty sure we had not. These pretty kits start at US$20 for the faux iPhone, $35 for the tablet and $50 for the "everything kit." Sure, they'...

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DevJuice: About that Xcode beta...

A few things you should note about yesterday's Xcode beta release... First, new sizes and naming updates apply to asset catalogs. Here's my latest list of what I believe you need to be building on a per-app basis for icons. No, none of this is documented anywhere. I also believe there were no chan...

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Adventures in Google Cast development: Day 1

Google's developer preview SDK for Google Cast -- the streaming technology that's powering the Chromecast hardware -- is up and running. It looks like adding Google Cast support will be ridiculously easy with little coding overhead for anyone who wants to jump on the bandwagon. Although the Chrom...

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DevJuice: Embed shell commands in an .app wrapper and other dev command line tricks

The other day, I was chatting with some Mac devs. One of them asked how to set up an App wrapper to run a custom shell script from the desktop. I use a script called appify created by Thomas Aylott and Mathias Bynens. It does little more than create the app bundle folder structure (top

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DevJuice: Organize code snippets with Code Collector Pro

Code Collector Pro (on sale for US$9.99, normally $19.99) offers a snippet manager for your development needs. I bought myself a copy a few weeks ago, when it suddenly went on sale, and have spent the time since kicking its wheels. I was surprised to find out how much I like it. It offers excellent...

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DevJuice: Launch image and app icon naming scheme

Some things aren't particularly obvious, but can be very handy to know for when you need them. With the hope that this will be useful to our DevJuice community, TUAW presents the following without further comment: LaunchImage-700@2x~iphone LaunchImage-700-568h@2x~iphone LaunchImage-700-Portra...

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DevJuice: The easy way to set up an OS X Mavericks test environment

OK, this is going to be a "duh" moment for most Mac developers, but apparently there are some people who are having issues with setting up a test environment in which to run OS X Mavericks. I have to admit that I was one of those who first started asking if anyone was having success running the ...

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DevJuice: Spark Inspector offers real time iOS interface inpection

Spark Inspector (US$39.99 single-license) offers an exciting new development tool. Targeting devs looking to refine their user interfaces, it enables you to interactively tweak view properties like frames and layers. The app centers around an Interface Builder-like experience, with familiar-looki...

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DevJuice: Apple's ObjC-JavaScript Bridge

In a new post at his Steamclock Software blog, Nigel Brooke writes how Apple has added new Objective-C-to-Javascript bridging to WebKit: "This new API supports straightforward embedding of the JavaScriptCore interpreter into native Objective-C projects, including reading and writing variables a...

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DevJuice: iTC Daily Reports delivered to your inbox

Wevito's Daily Reports, which offers a 30-day free trial followed by a US$4.99 one-time payment for lifetime service, scrapes iTunes on your behalf and sends daily email updates to you. To make this work, you entrust Wevito with iTunes Connect credentials. Admittedly, you do not have to pass al...

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DevJuice: placekitten and other handy placeholder sites

What do you give to the dev who has everything? How about placeholder kittens, compete with their own API? provides on-demand placeholder art at the resolution you specify. For example, you could ask for a 625x225 image by submitting a request to:

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Devjuice: Installing command line tools (or not)

Oliver Drobnik over at Cocoanetics has posted another really great how-to write-up, this time about Xcode and command-line tools. He shows you how to access apps from inside the Xcode bundle by using xcrun, and how to set your default Xcode install (via xcode-select). That's especially useful in...

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DevJuice: Should I develop cross platform?

App Store. Android. Amazon. If you're a developer, there are lots of possible venues competing for your attention. So which one is worth your time and energy? I turned to Avatron Founder and CEO Dave Howell for the answer. Avatron makes Air Display, a popular app that allows you to use a mobile ...

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