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2014/10/15 ¤U¤È 10:03:31
iphone Programming Glossary: akaHow to use compare on a version number where theres less parts in one number in Objective-C? http://stackoverflow.com/questions/12308659/how-to-use-compare-on-a-version-number-where-theres-less-parts-in-one-number-in why compare is having an issue and what the problem is compareVersions @ 10.4 @ 10.3 returns NSOrderedDescending 1 aka first number is higher compareVersions @ 10.5 @ 10.5.0 returns NSOrderedSame 0 compareVersions @ 10.4 Build 8L127 @ 10.4.. @ 10.5.0 returns NSOrderedSame 0 compareVersions @ 10.4 Build 8L127 @ 10.4 Build 8P135 returns NSOrderedAscending 1 aka first number is lower NSComparisonResult compareVersions NSString leftVersion NSString rightVersion int i Break version..
Core Data multi thread application http://stackoverflow.com/questions/2138252/core-data-multi-thread-application for the new data but I can't figure out a way to move all the objects to the other context once finished. Paolo aka SlowTree ios iphone multithreading core data share improve this question The Apple Concurrency with Core Data documentation..
@property and retain, assign, copy, nonatomic in Objective-C http://stackoverflow.com/questions/2255861/property-and-retain-assign-copy-nonatomic-in-objective-c retain is needed when the attribute is a pointer to an object. The setter generated by @synthesize will retain aka add a retain count the object. You will need to release the object when you are finished with it. copy is needed when the..
Change the first character in each word of a string to uppercase http://stackoverflow.com/questions/2347786/change-the-first-character-in-each-word-of-a-string-to-uppercase
http://stackoverflow.com/questions/3449972/using-twitter-tweetie-custom-scheme-on-iphone-to-open-twitter-application trigger applications from my app but I'm unable to use the ones that seems to be provided by the official twitter app aka tweetie . I'm trying to open the twitter application directly to a predefined user profile. From the documentation found..
ipod touch / iphone development on Windows? [duplicate] http://stackoverflow.com/questions/377672/ipod-touch-iphone-development-on-windows application was exclusively developed on the old Dell Precision I had at the time There are two routes Install OSx86 aka iATKOS Kalyway on a second partition disk and dual boot. Run Mac OS X Server under VMWare Mac OS X 10.7 Lion onwards read..
iPhone - Draw transparent rectangle on UIView to reveal view beneath http://stackoverflow.com/questions/3800278/iphone-draw-transparent-rectangle-on-uiview-to-reveal-view-beneath . topView.opaque NO topView.backgroundColor UIColor clearColor If you want to do circles you have to use Core Graphics aka Quartz 2D . You'll probably want to read the programming guide which is available here . To draw an ellipse instead of the..
iphone ios running in separate thread http://stackoverflow.com/questions/3869217/iphone-ios-running-in-separate-thread iphone multithreading ios thread safety share improve this question In my opinion the best way is with libdispatch aka Grand Central Dispatch GCD . It limits you to iOS 4 and greater but it's just so simple and easy to use. The code to do..
Find the tangent of a point on a cubic bezier curve (on an iPhone) http://stackoverflow.com/questions/4089443/find-the-tangent-of-a-point-on-a-cubic-bezier-curve-on-an-iphone b b 3 t t c 3 c 3 t t2 d t3 CGFloat bezierTangent CGFloat t CGFloat a CGFloat b CGFloat c CGFloat d note that abcd are aka x0 x1 x2 x3 the four coefficients .. A x3 3 x2 3 x1 x0 B 3 x2 6 x1 3 x0 C 3 x1 3 x0 D x0 and then... Vx 3At2 2Bt C first..
http://stackoverflow.com/questions/597459/how-mature-is-sdl-for-iphone For a while I've been thinking of trying to do a port of one of my favorite classic PC games The Ur Quan Masters aka Star Control 2 to the iPhone. UQM uses SDL for all its graphics sound input and other gamey stuff and there does seem to..
iOS: How do I generate 8 unique random integers? http://stackoverflow.com/questions/6153550/ios-how-do-i-generate-8-unique-random-integers How do I generate 8 unique random integers I need to generate 8 random integers but they need to be unique aka not repeated. For example I want 8 numbers within the range 1 to 8. I've seen arc4random but I'm not sure how to make them..
iPhone FFT with Accelerate framework vDSP http://stackoverflow.com/questions/6358764/iphone-fft-with-accelerate-framework-vdsp
Develop iPhone applications using Microsoft Windows [duplicate] http://stackoverflow.com/questions/68196/develop-iphone-applications-using-microsoft-windows application was exclusively developed on the old Dell Precision I had at the time There are two routes Install OSx86 aka iATKOS Kalyway on a second partition disk and dual boot. Run Mac OS X Server under VMWare Mac OS X 10.7 Lion onwards read..
How to use a common target object to handle actions/outlets of multiple views? http://stackoverflow.com/questions/6950674/how-to-use-a-common-target-object-to-handle-actions-outlets-of-multiple-views feel right though. iphone mvc interface builder share improve this question Adam it sounds like you want a proxy aka external object. Your Problem NSBundle and UINib return auto released arrays when instantiating object graphs from NIBs...
GPS coordinates in degrees to calculate distances http://stackoverflow.com/questions/6994101/gps-coordinates-in-degrees-to-calculate-distances
Moving a Stick figure, anchorpoints, animation, or something else…? http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else you can do one of two things change the position to screen width 2 screen height 2 change the anchorPoint to 0 0 aka CGPointZero You can imagine the latter is easier to do. If you'll never move the background it's fine doing that. However..
iPhone fetch data dictionary from keychain http://stackoverflow.com/questions/7827730/iphone-fetch-data-dictionary-from-keychain SecItemCopyMatching. The error I am getting says Cast of an indirect pointer to an Objective C pointer to 'CFTypeRef ' aka 'const void ' is disallowed with ARC. I've been looking all over google apple docs and a bunch of other crap and can't find..
calling drawRect in a UIView subclass http://stackoverflow.com/questions/9407162/calling-drawrect-in-a-uiview-subclass 100 self.title_.frameHeight self.title_.frameX 40 self.page_ setNeedsDisplay If you need to customize the drawing area aka the CGRect that will be passed to drawRect you can use setNeedsDisplayInRect As @rob mayoff has suggested you can override..
http://stackoverflow.com/questions/9445090/alarm-clock-app-in-ios apps built outside of Apple so don't even try to compete with it. If you buy all Alarm clock apps in the App Store aka approved by Apple and try them one by one you will see that they lack behind the built in alarm app in the most important..
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