Introducing, a revolutionary new musical instrument
and mind-blowing iPhone 4+ app...
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A Rare Inconsistency in UIPickerView’s with Multiple Components
Recently I came across an elusive bug in our Sound Wand app involving the 2-component UIPickerView used to choose the musical key/scale combination. The setup is a bit complex but to give you an idea, some “scales” are “special” (eg. “Morning Sunrise”) in that they have pre-defined musical keys so when a user selects one ...
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Latest Code Snippets...
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iOS/Cocoa Event Timing with MPStopwatch
Marshmallow Stopwatch on Github This is the latest addition to the Marshmallows library. It’s a simple class I designed for getting a deeper analysis of user interaction timings in an app. The results are then reported to the app’s analytics. It supports “marks” (like the “lap” button on stopwatches) as well as pausing. An example…
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Understanding the iOS Layer Drawing & Display Hierarchy – A Detailed Look Behind the Scenes
The first time I was confronted with the need to do some custom drawing in my iOS app, I spent longer understanding and deciding how to begin than I did actually doing the drawing code itself. Through much trial and error, and many pages of Apple docs and Stack Overflow posts, I journeyed through a ...
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The best iOS singleton approach yet – thread safe, no locks!
http://lukeredpath.co.uk/blog/a-note-on-objective-c-singletons.html
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Handy category for sampling pixel data from UIImage…
https://github.com/Club15CC/Marshmallows/tree/master/Source/UIKit A UIImage category for Getting pixel byte data into an NSData object Sampling pixel colour data at a point Sampling an even selection of pixels from a range (for using gradients swatches as colour profiles). Many thanks to the help in this SO questions.
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Pure CSS3 Lighting Technique Example
http://attasi.com/labs/ipad/
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A big weakness in Objective-C’s weak typing
http://cocoawithlove.com/2011/06/big-weakness-of-objective-c-weak-typing.html Keeping this one in the back of your mind might save you some serious headache…
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Mysterious Appearance of Duplicate Symbol Error for Objective-C Class
Check that you aren’t importing the “.m” file: #import “DuplicateClass.m” Thanks to the second answer on this SO post!
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11 Fairly Random Tips and Stumbling Blocks to Help with Your Next iPhone Friendly, HTML5/CSS3 Website
1. In HTML5, there is no predefined hierarchy for <header>, <section> and <article> tags. Each can be nested within the other. It’s not one section per page or one article per page. Post stubs can be wrapped in <article> tags. Comments can be a <section> with each comment being an <article> with the author/date/time in ...
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CanvasDemos.com: 3D, Particles, Physics and Other Advanced Graphics on the Web
http://www.canvasdemos.com/
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A Crash Course in the HTML5/CSS3/JS Techniques of the Modern Front-End Maestro
For the rebuild of the photographer Nick Fleming’s website, I was pleased to discover this treasure chest of incredible tools which have come about in recent years. The site employs many modern front-end web development techniques such as responsive design via media queries, font embedding, the HTML5 History API, HTML5 elements, and many CSS3 techniques ...
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The Tale of a Responsive Design, HTML5, CSS3, iPad3 Future Proof Photography Website
For the recent re-design of the photographer Nick Fleming’s website, I decided to make a bold decision to forgo worry about compatibility with the Ghosts of IE Past and focus on leveraging many of the modern tools of HTML5, CSS3 and other areas which many of us have been patiently window shopping but in-the-end, avoiding for ...
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How To: Upload Media via URL Programmatically in WordPress
How To: Upload Media via URL Programmatically in WordPress Discover the useful media_sideload_image() and download_url() functions. Much abliged Konstantin!
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Bulk Remove Categories from Posts [WordPress]
It’s a slight drawback to the bulk post editor in WP at the moment that you may only add categoires to the selected posts but not remove them. I came across this post on the forum to which I had to make a few tweaks to get things working in WP3.2. Below is the result… ...
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iOS5 & ARC – A Clear, Comprehensive Tutorial… [iOS]
iOS5 & ARC – A Clear, Comprehensive Tutorial… [iOS]
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Singleton Design Patterns Reference [Objective-C]
Singleton Design Patterns Reference [Objective-C] A good discussion on StackOverflow which covers multi-threading and high-efficiency options…
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Learn by Example with these Python Generator Expressions [Python]
Learn by Example with these Python Generator Expressions [Python]