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Mobile Apps

What are the dangers of using code that is posted online as opposed to developing the code yourself? Is there any reason to not use it?

In my experience the biggest danger in using code that is posted online is that you may end up investing a significant amount of time trying to understand it before realizing that it either doesn't work as described or won't work for your intended purpose.…

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“NSPropertyListWriteStreamError” – When No is Not Enough

Sometimes, 'NO' is just not enough.  There are many great features about XCode, the LLVM compiler, Objective-C and the Cocoa Touch libraries but sometimes they just don't give enough information.  One such case is NSDictionary's "-(BOOL)writeToURL:atomically:" method. I was working on a project, and I…

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Apple Owns Your Smartphone’s Touchscreen

Apple Owns Your Smartphone's Touchscreen... Well, sort of. Back in 2007 before the iPhone was released Apple filed a patent application for the capacitive touch screen used on the iPhone, iPod Touch, and, now, the screens of many competitor's phones, such as Android and BlackBerry.…

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Apple’s iOS 5: New Features for Users & Developers

Earlier this month Apple released iOS 5 for developers to begin working with for iPhone, iPad, and iPod Touch applications. So far the developers here have had a positive reaction to the new iOS with a lot of great features and add-ons. Unfortunately due to…

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Objective C – Multiple Pages in a UIScrollView

Enabling paging in a UIScrollView will allow you to have a nice 'snap-to' effect. It's exactly what you see when using the Photo app. I recently wanted to utilize this effect while displaying multiple pages on the screen but ran into a few issues. Problems…

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