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2014/10/15 ¤U¤È 10:08:00
iphone Programming Glossary: efficiencyWhat's the difference between NSNumber and NSInteger? http://stackoverflow.com/questions/1285098/whats-the-difference-between-nsnumber-and-nsinteger For example a CGFloat uses 32 bits on some machines and 64 bits on others depending largely on how much of an efficiency gap there is on those machines for those sizes. In some cases there's no real speedup for using 32 bits vs 64 bits so you..
Objective-C: When to call self.myObject vs just calling myObject http://stackoverflow.com/questions/1332389/objective-c-when-to-call-self-myobject-vs-just-calling-myobject
http://stackoverflow.com/questions/230984/compression-api-on-the-iphone some RESTful web services for our iPhone app to talk to but we want to compress at least some of the conversations for efficiency. I don't care what the format ZIP LHA whatever is and it does not need to be secure. Some respondents have pointed out that..
How to tile a 30000 x 6000 image for a 480 x 320 screen? http://stackoverflow.com/questions/2726335/how-to-tile-a-30000-x-6000-image-for-a-480-x-320-screen left right by swipes zoom in up to pixel to pixel out down to screen fit by height by the 2 finger operation memory efficiency by lazy loading tiles Thanks iphone image manipulation tiles share improve this question Check out part 3 of Apple's..
How to avoid superclass methods getting overridden by sub class in objective - c http://stackoverflow.com/questions/2864273/how-to-avoid-superclass-methods-getting-overridden-by-sub-class-in-objective-c by sub class in objective c Like in java A final class cannot be subclassed. This is done for reasons of security and efficiency . Accordingly many of the Java standard library classes are final for example java.lang.System and java.lang.String. All..
What type of webservice works best with iOS? http://stackoverflow.com/questions/3152700/what-type-of-webservice-works-best-with-ios XML based encoding because both are usually easy to program to on client and server both can be done with reasonable efficiency on the wire and are likely to be extensible for future app iterations. JSON has advantages of being a bit simpler to parse..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting UITextInput . This includes but is not limited to text selection highlight background colors text storage management efficiency spell checking etc. Some of these are provided by system frameworks but still need a lot of integration. File a bug and..
OpenGL ES (IPhone) alpha blending looks weird http://stackoverflow.com/questions/4012035/opengl-es-iphone-alpha-blending-looks-weird values are pre multiplied by the alpha channel value as well by a compression utility 'pngcrush' for device specific efficiency reasons when programming with the UIKit interface . The utility also renames a header of the file making the new PNG file..
What's the best way of live streaming iphone camera to a media server? http://stackoverflow.com/questions/4474871/whats-the-best-way-of-live-streaming-iphone-camera-to-a-media-server
Why is this OpenGL ES code slow on iPhone? http://stackoverflow.com/questions/450042/why-is-this-opengl-es-code-slow-on-iphone size is 512x512 atlas and RGBA_8888 while the texture coordinates are in float. The code is very ugly in terms of API efficiency there are two MatrixMode change along with two loads and two translation then a drawarrays for a triangle strip quad . Now..
Are most games on the IPhone done with OpenGL ES? http://stackoverflow.com/questions/747672/are-most-games-on-the-iphone-done-with-opengl-es to be used over using other tools iphone opengl es core animation quartz graphics share improve this question For efficiency reasons OpenGL ES is you best choice for games unless your writing a simple board game or card game like Solitaire . In..
Passing managedObjectContext - is this efficient? http://stackoverflow.com/questions/7501764/passing-managedobjectcontext-is-this-efficient iphone core data nsmanagedobjectcontext share improve this question You don't really have to worry about the efficiency of this it will perform fine whichever way you do it you're just passing a pointer around. That's not to say this is a decent..
App Store code runs different from Xcode/Device code on iPhone 3G http://stackoverflow.com/questions/7739563/app-store-code-runs-different-from-xcode-device-code-on-iphone-3g device should be left in its original state for debugging purposes and code released should be optimized for speed and efficiency. So here's the fun part. Changing my Debug setting to Fastest Smallest Causes the issue to occur on my device while running..
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