Easy, Modular Code Sharing Across iPhone Apps: Static Libraries and Cross-Project References
020200 31 Aug 2010 at 00:26Thia are also very cool swipe- and animation-effects in jQuery.
020200 16 Aug 2010 at 14:12Making a swipe-effect like on iDevices in jQuery.
020200 16 Aug 2010 at 13:45JSON-Parsing / Rails - Obj-C
Try to avoid Arrays, if not wanted. Best, to do this an the server-side, because fixing parsing-problems in Obj-C can be a debugging-nightmare.
Ruby got great array-parsing methods to do so. For example:
for f in friends
postings.concat(f.postings) if f.postings.length > 0 ### THIS HERE
postings.compact!
postings.uniq!
postings = postings.sort_by { |p| p.created_at }
postings.reverse!
end
Better than
for f in friends
postings << f.postings if f.postings.length > 0 ### THIS, IN THAT CASE
postings.compact!
postings.uniq!
postings = postings.sort_by { |p| p.created_at }
postings.reverse!
end
020200 04 Aug 2010 at 16:14Glyphish great free UI-Icons for iPhone, iPod Touch and iPad.
020200 19 Jul 2010 at 01:55Quick test /ignore http://maps.google.com/maps?q=London
020200 14 Jul 2010 at 14:12A UISegmentedControl with custom color
020200 12 Jul 2010 at 18:42Messed around a lot with the Three20 Framework and decided against it. Most of the things really feel like "reinventing the wheel" - opposed to enhancing UIKit. The documentation is also far away from being great.
020200 11 Jul 2010 at 19:29Finally a great answer, that explains all about the issues with viewWillAppear and viewDidAppear.
020200 26 Jun 2010 at 17:57Deploy Apps (Binaries) for different targets, supporting also older OS without having troubles with the linker.
020200 25 Jun 2010 at 21:40Very helpful reading, if strange EXC_BAD_ACCESS errors occur, for example if using "objectWithString" initalisation. Or having jams with the SBJSON-Object at the JSON-libary.
020200 22 Jun 2010 at 15:12Remove whitespaces and other character-sets with NSCharacter.
020200 21 Jun 2010 at 13:51A nice way to fade the splash-screen (Default.png).
020200 15 Jun 2010 at 14:36Some custom Color Picker / Selector for iPhone / iPod.
020200 15 Jun 2010 at 14:16Code-example "Get color at x, y"
020200 15 Jun 2010 at 14:14The iPhone icon size is 57 x 57 pixels. Spotlight searches return a 29 x 29 pixels icon. Both like .png.
020200 07 Jun 2010 at 14:48iPhone: Working with different environments (i.e. production, development) using debug and release setting with pre-compiled header.
020200 15 May 2010 at 00:56Nerdy Programming Jargon: Programmers inside-jokes.
020200 11 May 2010 at 20:33Lessen learned: I spend hours, if not days, messing around with disappearing instance-variables, that I kept reusing. Or also a UIActivityIndictor that sometime won't hide, although it should (sometimes yes, sometimes no). The scope of this variables was defined local in the @implementation-section. After putting the vars into the @interface, and adding @property and @synthesize methods, all issues were solved. I think, it's got something to do with the lack if retain on my first approach.
020200 30 Apr 2010 at 03:31This post at Stack Overflow really helped me, understanding the Responder-Chain vs. the View-Hirarchy. And why a UIVIewController can come in handy, if you want views / subview respond to events.
020200 29 Apr 2010 at 01:54Memory Leaks! What a lovely topic. I found two threads, that tell about important finegranular differences, when dealing with objects in Cocoa. First one if about appending to NSString and NSMutableString without leaks. Second is about treating your RSSParser the right way.
020200 26 Apr 2010 at 17:16Flash gives up on the iPhone/iPad cross-compiler.
020200 21 Apr 2010 at 19:56Uhm, I suppose the UITableViewController does not have always advantages. For example, you will need a workaround for scrollToRowAtIndexPath:atScrollPosition:animated at the tableView. This isn't obvious and also not documentated.
020200 20 Apr 2010 at 13:01Waiting on the iPhone is not that easy to implement: iPhone show wait indicator
020200 17 Apr 2010 at 00:44UINavigationbar.barStyle customisation. And here is great how-to.
020200 12 Apr 2010 at 02:55iPhone OS 4 will contain multitasking of apps.
020200 09 Apr 2010 at 17:16libNUI totally looks like cool multi-platform development!
020200 08 Apr 2010 at 17:41Essential Cocoa wisdom: About the "Expected Expression Error" at switch/case.
020200 01 Apr 2010 at 21:29Really enjoyed this videopodcast with Igor Pusenjak, Drew Cogbill and Zach Gage about App Store, making apps, work and art.
020200 01 Apr 2010 at 03:22Distmo Monitor to measure App-success.
020200 31 Mar 2010 at 13:43Wird Apple in Zukunft eigenen Suchmaschine und Kartendienste starten? CoD spekuliert.
020200 31 Mar 2010 at 13:42Chris Hanson has a lot of useful resources online about advanced cocoa and objective-c topics. His new blog.
020200 30 Mar 2010 at 21:41Also note coordinate-issues on the frame of you user transforms.
020200 30 Mar 2010 at 00:08UIImage und UIImageView (UIView) transformations: 1 2 3 oreilly cookbook
020200 30 Mar 2010 at 00:03Holy cow. It seems that I was dealing with a "out of scope"-bug all the time.
020200 22 Mar 2010 at 17:19Have to hammer this into my head about NSMutableArray Memory Management
020200 22 Mar 2010 at 16:5330 "usability-shortcuts" on the iPhone. Apple gurus.
020200 18 Mar 2010 at 14:02Jeff Vogel: Indies should go up with their prices for games.
020200 11 Mar 2010 at 17:32Diggin into essential details about BOOL and NSLog.
020200 11 Mar 2010 at 15:49EXC_BAD_ACCESS, autorelease and essential debugging-techniques with NSZombie-Object: one, two.
020200 10 Mar 2010 at 18:44The Every Day Looper looks cooler, than Voice Band. Use it also with instruments!
020200 04 Mar 2010 at 17:20Cool resource about Pseudo 3D
020200 04 Mar 2010 at 11:04It seems, that the Instrument (Xcode) does not log memory leaks correctly, when app runs in Simulator. It shows leaks that aren't there - and there are rumours, that real leaks are partly unattended, when running at Simulator.
020200 03 Mar 2010 at 00:18Some essential reading on Cocoa, even for more experienced developers.
020200 26 Feb 2010 at 22:15A collection of multi-touch links.
020200 26 Feb 2010 at 19:20Some cool stuff at weibezahn.com portfolio
020200 26 Feb 2010 at 00:35I don't know why, but I am not too cheerful about ngmoco buys freeverse. Small is beautiful anyone? More at freeverse and business wire.
020200 25 Feb 2010 at 20:43Quick notice: Will do some codingwork on the guts of playstate soon. With the goal to enhance interaction and meaning.
admin 23 Feb 2010 at 21:14