iPhone OS: Design a nice InApp Purchase View

To get up a nice InAppPurchase View for Appleā€™s AppStore, we first need some good looking buttons: http://code.google.com/p/iphonegradientbuttons/ http://undefinedvalue.com/2010/02/27/shiny-iphone-buttons-without-photoshop/ http://iphonedevelopment.blogspot.com/2010/05/improved-gradient-buttons.html http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone/ There are also some tweaks for the UITableView you might consider using: http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view/ http://stackoverflow.com/questions/986392/programmatically-force-a-uiscrollview-to-stop-scrolling-for-sharing-a-table-view/ more information upcoming…

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iPhone OS: Setup an additional Security Layer

As you might already know the iPhone is itself not that secure that people might think (news is german): http://www.heise.de/security/meldung/Luecke-in-Datenverschluesselung-des-iPhones-1007818.html How do you prevent intrusion of your customers data? As a really pragmatic approach, we can just set up additional encryption for our application data: http://stackoverflow.com/questions/2579453/nsdata-aes-class-encryption-decryption-in-cocoa http://iphonedevelopment.blogspot.com/2009/02/strong-encryption-for-cocoa-cocoa-touch.html http://pastie.org/974094/ So if you use for example core […]

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iPhone OS: ffmpeg for the iphone – Part 1

I am just checking if it is possible to get WMV9 support for one of my applications on the iphone using ffmpeg. The good point a lot of people tried to get these working, but actually none covered if his application was approved for the AppStore. Due to Apples guidelines there might be some problems […]

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Cocoa: Core-Plot for MacOS X and iPhone

If you want to draw nice plots or graphs on the Mac or the iPhone, then you will come across core-plot. This opensource project really works well and following some of the links should give you a good start Google Code Page: http://code.google.com/p/core-plot Tutorials: http://www.switchonthecode.com/tutorials/using-core-plot-in-an-iphone-application http://blogs.remobjects.com/blogs/mh/2010/01/26/p973

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Core Animation Tutorials

simple

April 13, 2009

Cocoa

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I found a nice site which features a tutorial for Core Animation: http://theocacao.com/document.page/533

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Cocoa: Debugging retain counts

simple

November 6, 2008

Cocoa

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This article is a big Time Save if you are debugging retain counts in Cocoa. Original version (Aaron Hillgrass): http://weblog.bignerdranch.com/?p=2 This article, originally published in MacTech Magazine, gives tips on how to write your code such that retain count problems are easier to find and how to locate the problem when symptoms appear. Before delving […]

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Use CFRunLoopRun to synchronize NSMetadataQuery

simple

May 12, 2008

Cocoa

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– (NSArray *)completionsForPartialWordRange: (NSRange)charRange indexOfSelectedItem: (int *)index { // get the current word. That will be the keyword in our query NSString *word = [[self string] substringWithRange: charRange]; // construct the query string from this word: NSString *queryString = @”someQueryString”; // construct the objects needed to perform the query NSMetadataQuery *query = [[NSMetadataQuery alloc] init]; […]

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Cocoa: Secure License Framework for Kagi

simple

January 9, 2008

Cocoa

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http://www.aquaticmac.com/

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Plot Frameworks

simple

September 8, 2007

Cocoa

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After looking for some niceplot frameworks for Cocoa, I found this three starting points:http://developer.snowmintcs.com/frameworks/sm2dgraphview/index.htmlhttp://sourceforge.net/project/showfiles.php?group_id=79925http://www.vtk.org/ technorati tags:plot, framework, cocoa

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Old Code for copying (backup and restore)

simple

February 8, 2007

Cocoa

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BACKUP [crayon-59eb029fc8a92084127433/] RESTORE [crayon-59eb029fc8a99017135101/] technorati tags:cocoa, NSFileManager

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