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2014/10/15 ¤U¤È 10:11:21
iphone Programming Glossary: messDoes a NSURLConnection retain its delegate? http://stackoverflow.com/questions/1101867/does-a-nsurlconnection-retain-its-delegate connectionWithRequest delegate self is indeed having its retain count increased 1. If you're feeling brave and want to mess with the EXC_BAD_ACCESS gods add in conn dealloc NSLog @ Retain count after dealloc d self retainCount which will print..
Objective-C 101 (retain vs assign) NSString http://stackoverflow.com/questions/1380338/objective-c-101-retain-vs-assign-nsstring relinquishes ownership of the old one. With an assign property the surrounding code has to do this which is just as mess in terms of responsibilities and separation of concerns. The reason you would use an assign property is in a case where..
How can I get a writable path on the iPhone? http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone configuration files and writable databases that you also want to keep around but you don't want the user to be able to mess with through iTunes NSArray paths NSSearchPathForDirectoriesInDomains NSLibraryDirectory NSUserDomainMask YES NSString libraryDirectory..
Xcode 5 and iOS 7: Architecture and Valid architectures http://stackoverflow.com/questions/18913906/xcode-5-and-ios-7-architecture-and-valid-architectures target iOS 5.0 . As soon as I create new project in Xcode and try to change deployment target to 5.0 I've got this message Applications including an arm64 slice are not compatible with versions of iOS prior to 6.0 Adjust your Architectures.. my app on 64 bit iPhone or iOS Simulator I know it works I'm just curious what hapens underneath Can you explain big mess with new 64 bit architecture iphone ios xcode ios7 share improve this question Set the architecture in build setting..
iPhone, CGPDFDocument - PDF links http://stackoverflow.com/questions/3257057/iphone-cgpdfdocument-pdf-links are functions provided by Apple to allow you do to this. The bad news is they're procedural and man is it a convoluted mess. In very rough pseudo code use CGPDFDocumentGetCatalog to get the catalog for the PDF look in the pages element of the catalog..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting File a bug and wait for a nice public API to come my personal approach . Convince Apple to allow private API again and mess with UItextView s DOM. The Omni Group has taken the second approach and created an editable text view. You can find it in..
http://stackoverflow.com/questions/4097044/pdf-search-on-the-iphone I could calculate the resulting rect based on those values but I've been reading the spec for hours... it's a bloated mess and I'm going insane. Anyone with a practical explanation Update User Naveen Thunga found PDFKitten a framework for extracting..
How can I pop a view from a UINavigationController and replace it with another in one operation? http://stackoverflow.com/questions/410471/how-can-i-pop-a-view-from-a-uinavigationcontroller-and-replace-it-with-another-i uinavigationcontroller uiviewanimation share improve this question I've discovered you don't need to manually mess with the viewControllers property at all. Basically there are 2 tricky things about this. self.navigationController will..
Most effective way to do networking on Mac/iPhone? http://stackoverflow.com/questions/4269613/most-effective-way-to-do-networking-on-mac-iphone be spectacular. About the only downside is that pairing simply takes a plain long time with GK. And it's a childish mess created for ten year olds learning programming. You will be able to do 100x faster pairing working directly with AsyncSockets...
iOS SDK - Programmatically generate a PDF file http://stackoverflow.com/questions/4362734/ios-sdk-programmatically-generate-a-pdf-file we provide and the above defined dictionary pdfContext CGPDFContextCreateWithURL url pageRect myDictionary Cleanup our mess CFRelease myDictionary CFRelease url Done creating our PDF Context now it's time to draw to it Starts our first page CGContextBeginPage..
Xcode won't recognize my new provisioning profile http://stackoverflow.com/questions/5291463/xcode-wont-recognize-my-new-provisioning-profile and or your entire Xcode project or make sure your Xcode project is kept in proper version control . You don't want to mess up and cause Xcode to stop building your project onto your device without anything to fall back on. I peeked into the contents..
Why should I use @properties? [duplicate] http://stackoverflow.com/questions/5602968/why-should-i-use-properties repetitious and trouble prone boilerplate code scattered all over the place like cherries in a fruitcake. That kind of mess is fiendishly difficult to debug when not if something goes wrong. So it's far better to wrap that code up in accessor methods..
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 pipeline at any point. Cut out anything that reads the current state like all glGet calls because they really mess with the flow of the PowerVR GPUs. There are other things you can do that will lead to smaller performance improvements..
When does an associated object get released? http://stackoverflow.com/questions/6039309/when-does-an-associated-object-get-released a class through categories so I can't override any existing methods including dealloc and I don't particularly want to mess with swizzling. I need some way to de associate and release object B before object A gets deallocated. EDIT Here is the.. is to swizzle in my own dealloc method and swizzle back the original in order to call up to it. That gets really messy though. The point of the ZSPropertyWatcher class is that KVO requires a standard callback method and I don't want to replace..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c On the NSWindow side it probably has code similar to this to see if the delegate responds to the windowDidMove message using respondsToSelector and send it if appropriate. if self delegate respondsToSelector @selector windowDidMove self.. before calling a particular method on it. Apple recommends this method because it is more precise doesn't mess with NSObject and can provide better tool support. Speed Optimizations Instead of checking whether a delegate responds to.. tool support. Speed Optimizations Instead of checking whether a delegate responds to a selector every time we want to message it you can cache that information when delegates are set. One very clean way to do this is to use a bitfield as follows..
If I revoke an existing distribution certificate, will it mess up anything with existing apps? http://stackoverflow.com/questions/6320255/if-i-revoke-an-existing-distribution-certificate-will-it-mess-up-anything-with I revoke an existing distribution certificate will it mess up anything with existing apps I built an iOS app for an organization that has an app already on the store. After weeks.. it without problem That is what I was going to do but I don't know the ramifications for the existing app. Will it mess anything up with that And then when the organization wants to continue updates on their apps can't they just revoke and..
Safari iPhone - How to detect zoom level and offset? http://stackoverflow.com/questions/668462/safari-iphone-how-to-detect-zoom-level-and-offset
Pre-load core data database in iOS 5 with UIManagedDocument http://stackoverflow.com/questions/8683892/pre-load-core-data-database-in-ios-5-with-uimanageddocument is normally done Thanks iphone objective c core data ios5 share improve this question I don't think you should mess around with the files and directories yourself in iOS. You can however open the document directly from your bundle. For..
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