Author Archives: admin

Juggleware app mentioned on NPR

NPR ran a story yesterday about Apple’s new iPad which just hit stores, but critics say that the “walled garden” approach (just like the iPhone) makes the Internet a less free place and could spell the end of the net …

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Making annotations fit on a Map View.

After struggling with formulae that convert degrees longitude and latitude to meters, I found a much better way to get annotations to fit on a Map View, thanks to this site:

http://codisllc.com/blog/zoom-mkmapview-to-fit-annotations/

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Helpful Core Data debugging

Core Data is really great, but if your app crashes without warning it can be a major headache. Replacing the default error handling code with this more involved approach saved me hours of time debugging:

http://www.designcodeexecute.com/2009/08/28/iphone-sdk-coredata-debugging-error-1560-1570

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Can not use an object as parameter to a method (Obj-C errors, part 2)

This is an easy one to seasoned X-coders, but one that tripped me up a few times when I first got started.

BAD CODE:

-(void) makePhotoFromImage: (UIImage )image;

ERROR:

can not use an object as parameter to a method

TRANSLATION…

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Objective C compiler errors: translations for newbs

I’m pretty new at Xcode and Objective C, so there may not be a one-to-one correspondence here between errors and the most probable cause, but this helps me so it may help you.

This will be a work in progress; …

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Looking for iPhone App beta testers!

Do you have an iPhone 3G or 3GS?

Do you like scavenger hunts, visual puzzles, realspace gaming, or geocaching?

Do you like to take pictures with your iPhone and know visually interesting landmarks around your area?

If you answered YES …

Posted in Beta Testing, Games, iPhone Apps | 2 Comments