Category Archives: coding

[Objective-C + Cocoa] UIScrollView and contentSize

Posted on February 12, 2011 by aroth

So here’s a simple one. For whatever reason, a UIScrollView instance only behaves correctly if you programmatically set its contentSize when you use it. This is fairly silly because in most cases the contentSize is simply the total size of … Continue reading →

Posted in coding, objective-c | Tagged , , | 8 Comments

[Cocoa + iPhone] UITableViewCell: It’s Broken!

Posted on February 10, 2011 by aroth

I present for your consideration the following screenshot: It shows a basic table-view, in which each cell has been assigned the same image (using its built-in ‘imageView‘ property). The source image is 20 pixels square, and the imageView’s ‘contentMode‘ property … Continue reading →

Posted in coding, objective-c | Tagged , , , | Leave a comment

[Cocoa + iPhone] Unraveling Apple’s Pagecurl

Posted on February 9, 2011 by aroth

First off, I encourage anyone that’s unfamiliar of this topic to read through this short but very sweet blog post on the subject (and to take a quick look at his sample code). We’ll be picking up where Steven left … Continue reading →

Posted in coding, objective-c | Tagged , , , | 10 Comments

[Objective-C + Cocoa] NSAutoreleasePool and Threads

Posted on February 4, 2011 by aroth

If you have a multithreaded iPhone/iPad/Cocoa application, you are probably aware that for each thread you create you need to set up an auto-release pool for that thread. If you don’t do this then you’ll get some nice messages in … Continue reading →

Posted in coding, objective-c | Tagged , | 1 Comment

[C (and variants)] Pointer Declarations: You’re Doing it Wrong

Posted on February 3, 2011 by aroth

It happens on occasion, in the programming world, that bad coding conventions become the norm. Consider for instance the following two lines of code: Both lines are equivalent as far as the compiler is concerned, but when a human being … Continue reading →

Posted in c, coding | Tagged , | 5 Comments

[Objective-C + Cocoa] Object Inspection

Posted on February 1, 2011 by aroth

I’m a big fan of reflection. Always have been since I was first exposed to it in Java. For those not familiar with the concept, reflection (or introspection as it is alternately called) allows one to inspect and/or access the … Continue reading →

Posted in coding, objective-c | Tagged , | 3 Comments

Android vs. iPhone; A Developer’s Comparison

Posted on January 31, 2011 by aroth

So I’ve had a bit of exposure to both the iPhone and Android SDK’s, and while my impression of both is generally positive, each one has some of its own unique strengths and weaknesses. Interface Creation/Editing To begin I’ll focus … Continue reading →

Posted in banter, coding | Tagged , | 4 Comments

[Java] Defeating CAPTCHA Images

Posted on January 30, 2011 by aroth

Disclaimer: Depending upon the country you currently reside in, programmatically defeating CAPTCHA images may technically be illegal. Whether or not there is any merit behind such a law I leave as a matter for you to work out with your … Continue reading →

Posted in coding, java | Tagged , , , | 30 Comments

[Objective-C + Cocoa] The Poor-man’s Multithreading

Posted on January 29, 2011 by aroth

I’ve been doing a fair bit of coding in Objective-C lately, more specifically using Apple’s Cocoa API. There’s a lot to like about Objective-C as a language. Predating Java by nearly a decade, here is a reflective language that more … Continue reading →

Posted in coding, concurrency, objective-c | Tagged , , | Leave a comment

How to Write Good Code

Posted on January 25, 2011 by aroth

Xkcd probably ties for second with Penny Arcade in my list of favorite webcomics (the #1 spot goes to Questionable Content, despite my unending annoyance at the fact that the author has yet to have Marten hook up with Faye). … Continue reading →

Posted in banter, coding, process, refactoring | Tagged , | Leave a comment