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Links for 2009-08-18

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About

My name is Craig Hockenberry and furbo.org is my place to write for the web. You can learn more about me or view my résumé. I also have some production notes available. Don't forget to follow me on Twitter. For fun, click on my picture at the Iconfactory website.

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Waving a red flag Year two Brain farts A phone by any other name would smell as sweet… Of toolbars and actions Matt Gallagher deserves a medal… A thought experiment Slow ride, make it easy Front Row To Go Open sesame The final test During the early days of iPhone software development, there were no mechanisms for doing beta tests. Those of us on the bleeding edge were developing apps with very little peer review and beta testing.

Luckily, I have fr

(tags: iphone testing signing)

ParseKit Home Tokenization Grammars iPhone Source Code Header Docs ParseKit Documentation ParseKit

ParseKit is a Mac OS X Framework written by Todd Ditchendorf in Objective-C 2.0 and released under the MIT Open Source License. ParseKit is suitable for use on Mac OS X Leopard or iPhone OS. The framework is an Objective-C implementation of the tools described in "Building Parsers with Java" by Steven John Metsker. ParseKit includes additional features beyond the designs from the book and also some changes to match common Cocoa/Objective-C conventions. These changes are relatively superficial, however, and Metsker's book is the best documentation available for ParseKit.

The ParseKit Framework offers 3 basic services of general interest to Cocoa developers:

String Tokenization via the Objective-C PKTokenizer and PKToken classes. High- Level Language Parsing via Objective-C - An Objective-C parser-building API (the PKParser class and sublcasses). Objective-C Parser Generation via Grammars

(tags: parser cocoa objective-c)

Core FruitionIn a world where most good blog names are taken…

Home About Me « The Best Interface Builder Layout EveriPhone Development: Updating Project Hint » Quick and Easy Drawing Performance Debugging with NSShowAllDrawing While watching one of the WWDC09 session videos I was informed of a great tip that I had been previously unknown to me: Pass -NSShowAllDrawing YES as an argument to your application in Xcode to see a visual representation of the drawing that your application performs as it runs. To illustrate how NSShowAllDrawing works and the issues it can help you correct I’ve put together two videos.  The first shows my app, Bezipped, in its current 1.0 state and its current drawing behavior.

This second video shows how I improved the drawing in Bezipped simply by setting the top-level container to be backed by a Core Animation layer:

I highly recommend giving your app a spin with NSShowAllDrawing if you haven’t already, it was certainly a real eye-opener for me.  There are

(tags: cocoa performance quartz coreanimation)

Inspired by the amazing but elderly MGTwitterEngine, I wrote my own social networking classes for Cocoa, collectively named SDSocialNetworking. You can find them at their github repo.

(tags: cocoa twitter open- source)

Search MainArticlesForumsTutorialsReviewsAboutLoginRegisterSubmit Story Tuning Cocoa Applications Using DTrace: Custom Static Probes and Instruments By dgohara at Mon, Aug 10 2009 1:54pm |Tutorials Author: Brad Larson Web Sites: sunsetlakesoftware.com, sonoplot.com In the first part of this article, I introduced the syntax and structure of DTrace scripts through a series of real-world Cocoa performance problems that DTrace can solve. Within this section, I'll show you how to answer even more specific questions about your application via the use of custom static probes, and I'll demonstrate how easy it is to use DTrace within Instruments to extend its already powerful data capture capabilities. Custom DTrace probes So far, we've only used probes that already exist within the system. DTrace also gives you the ability to insert custom static probes within your own code. These probes can be used to provide even more information to your running DTrace scripts. For example, Core Data uses

(tags: cocoa dtrace debugging)

Programming with C Blocks   On Apple Devices   by Joachim Bengtsson What are Blocks? What are Blocks Good For? Getting Started On and for Mac OS X 10.6 Snow Leopard On Mac OS X 10.5 Leopard or for iPhone Blocks in C Syntax and Usage Memory Management Blocks in Objective-C Blocks in C++ Block Goodies References and Additional Sources Version History 0 Comments 1What are Blocks?

Blocks are like functions, but written inline with the rest of your code, inside other functions. They are also called closures, because they close around variables in your scope. (They can also be called lambdas). Let me demonstrate what this means:

counter.zip #include <stdio.h> #include <Block.h> typedef int (IntBlock)();

IntBlock counter(int start, int increment) { __block int i = start; return Block_copy( ^ { int ret = i; i += increment; return ret; }); }

int main() { IntBlock mycounter = counter(5, 2); printf("First call: %d\n", mycounter()); printf("Second call: %d\n", mycounter()); p

(tags: objective-c blocks finally)

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