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2014/10/15 ¤U¤È 10:03:30
iphone Programming Glossary: advantageUISearchbar clearButton forces the keyboard to appear http://stackoverflow.com/questions/1092246/uisearchbar-clearbutton-forces-the-keyboard-to-appear because of the user tapping the 'clear' button the searchBar hasn't become the first responder yet so we can take advantage of that in order to detect when the user in fact intended to clear the search and not bring focus to the searchBar and or..
How to identify CAAnimation within the animationDidStop delegate? http://stackoverflow.com/questions/1255086/how-to-identify-caanimation-within-the-animationdidstop-delegate Batgar iphone core animation share improve this question Batgar's technique is too complicated. Why not take advantage of the forKey parameter in addAnimation It was intended for this very purpose. Just take out the call to setValue and move..
What's the difference between NSNumber and NSInteger? http://stackoverflow.com/questions/1285098/whats-the-difference-between-nsnumber-and-nsinteger might use NSInteger etc instead of primitive types Because this way it's easier to write portable code that takes full advantage of the machine architecture. For example a CGFloat uses 32 bits on some machines and 64 bits on others depending largely..
http://stackoverflow.com/questions/165539/iphone-proximity-sensor Proximity Sensor Can the iPhone SDK take advantage of the iPhone's proximity sensors If so why hasn't anyone taken advantage of them I could picture a few decent uses. For.. Proximity Sensor Can the iPhone SDK take advantage of the iPhone's proximity sensors If so why hasn't anyone taken advantage of them I could picture a few decent uses. For example in a racing game you could put your finger on the proximity sensor..
Delegates Vs. Notifications in iPhoneOS http://stackoverflow.com/questions/2232694/delegates-vs-notifications-in-iphoneos view controllers from each other which is a good thing. Notifications might be a little easier to code and offer the advantage that multiple objects can observe one notification. With delegates such a thing cannot be done without modifying the delegating.. notification. With delegates such a thing cannot be done without modifying the delegating object and is unusual . Some advantages of delegating The connection between delegating object and delegate is made clearer especially if implementing the delegate..
http://stackoverflow.com/questions/2870680/horizontal-uitableview do vertical scrolling so doing a transform does not give the desired effect. Is there a standard way to do this taking advantage of a datasource provider like uitableview provides I basically want to do somthing similar to what the BBC News reader app..
iPhone - dequeueReusableCellWithIdentifier usage http://stackoverflow.com/questions/2928873/iphone-dequeuereusablecellwithidentifier-usage 5 table cells allocated in memory even if the table has 1000 entries. In the second way there is no reuse. There is no advantage in the second way over just using an array of table cells. If your table has 1000 entries then you will have 1000 cells..
Weak linking on iPhone refuses to work http://stackoverflow.com/questions/3002833/weak-linking-on-iphone-refuses-to-work linking on iPhone refuses to work I've got an iPhone app that's mainly targetting 3.0 but which takes advantage of newer APIs when they're available. Code goes something like this if UIApplicationDidEnterBackgroundNotification NULL..
LLVM vs. GCC for iOS development [closed] http://stackoverflow.com/questions/4589335/llvm-vs-gcc-for-ios-development enough that I can use it safely without stumbling on bugs in it too often Does switching to LLVM have any other disadvantages If it does then does the speed advantage outweigh them Are there any other reasons to switch except speed iphone objective.. stumbling on bugs in it too often Does switching to LLVM have any other disadvantages If it does then does the speed advantage outweigh them Are there any other reasons to switch except speed iphone objective c compiler llvm clang share improve.. new features using plain GCC is no longer relevant or possible LLVM GCC may support these features but it provides no advantage over Clang now that Clang is completely stable . By now with LLVM 2.0 included in the Xcode 4.0 beta LLVM is mature enough..
How can I optimize the rendering of a large model in OpenGL ES 1.1? http://stackoverflow.com/questions/5718846/how-can-i-optimize-the-rendering-of-a-large-model-in-opengl-es-1-1 in rendering time by binning the colors in one of my larger models. You're already using VBOs so you've taken advantage of that optimization. Don't halt the rendering pipeline at any point. Cut out anything that reads the current state like..
How to invoke iPhone Maps for Directions with Current Location as Start Address http://stackoverflow.com/questions/576768/how-to-invoke-iphone-maps-for-directions-with-current-location-as-start-address this link that I provided in comments below for how to localize the Current Location string. However you are taking advantage of another undocumented feature and as Jason McCreary points out below it may not work reliably in future releases. Update..
Do I need to release xib resources? http://stackoverflow.com/questions/61838/do-i-need-to-release-xib-resources @end @implementation MyController @synthesize uiElement void dealloc uiElement release super dealloc @end The advantage of this approach is that it makes the memory management semantics explicit and clear and it works consistently across all..
How do I replace weak references when using ARC and targeting iOS 4.0? http://stackoverflow.com/questions/6893038/how-do-i-replace-weak-references-when-using-arc-and-targeting-ios-4-0 a weak reference to begin with nor can I figure out how I would rewrite things to avoid using it while still taking advantage of ARC after all it's supposed to work with iOS 4 AND 5 right iphone ios automatic ref counting share improve this question..
http://stackoverflow.com/questions/6942439/objectivec-ivars-or-property your implementation file. However since synthesized properties come with free memory management you might as well take advantage. My rule of thumb is to use the ivar directly until the first time I find myself writing ivar release ivar newIvar retain..
UIScrollView : paging horizontally, scrolling vertically? http://stackoverflow.com/questions/728014/uiscrollview-paging-horizontally-scrolling-vertically can store touches properly and can reproduce and forward the original touchesBegan event later. It has an unfair advantage of using unpublished APIs so can clone touch objects before they are mutated. Given that you always forward touchesBegan..
Better performance with libxml2 or NSXMLParser on the iPhone? http://stackoverflow.com/questions/826281/better-performance-with-libxml2-or-nsxmlparser-on-the-iphone apple example you reference libxml2 tends to be faster. For smaller chunks of data the difference is negligible. One advantage i like about NSXMLParser is that it is an Objective C based implementation of an XML Parser where libxml2 is C based. share..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 ES but it can be used in reverse to get quick access to the raw pixels within an OpenGL ES texture. You can take advantage of this to grab the pixels for an OpenGL ES rendering by using a framebuffer object FBO with an attached texture with that..
Capturing mobile phone traffic on wireshark http://stackoverflow.com/questions/9555403/capturing-mobile-phone-traffic-on-wireshark
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