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2014/10/15 ¤U¤È 10:10:39
iphone Programming Glossary: isn'thttp://stackoverflow.com/questions/158914/cropping-a-uiimage improve this question I'm going to copy paste my response to the same question elsewhere There isn't a simple class method to do this but there is a function that you can use to get the desired results..
Expand/collapse section in UITableView http://stackoverflow.com/questions/1938921/expand-collapse-section-in-uitableview your number numberOfRowsInSection to check the mybooleans value and return either 1 if the section isn't expanded or 1 the number of items in the section if it is expanded. NSInteger tableView UITableView..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to add a proxy server between..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults them to last between sessions. Before I was putting all my information in NSUserDefaults but this isn't working. NSUserDefaults setObject forKey Attempt to insert non property value ' Player 0x3b0cc90 ' of..
How can I deploy an iPhone application from Xcode to a real iPhone device? http://stackoverflow.com/questions/246422/how-can-i-deploy-an-iphone-application-from-xcode-to-a-real-iphone-device iphone xcode deployment certificate share improve this question It sounds like the application isn't signed. Download ldid from Cydia and then use it like so ldid S Applications AccelerometerGraph.app..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th self initWithNibName @ myViewControllerLandscape bundle nil But I can see in gdb that this isn't executed when the app is started with the device in landscape. The NSLog message doesn't fire. Why is..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version of 3.1 or greater is required to use CADisplayLink. The NSTimer class is used as fallback when it isn't available. NSString reqSysVer @ 3.1 NSString currSysVer UIDevice currentDevice systemVersion if currSysVer..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 a static library fat for armv6 armv7 and i386 Since Apple's latest changes the Simulator part isn't the same as the arm6 arm7 difference any more it's a different problem see above iphone xcode share..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content has been loaded so we put the..
How to send json data in the Http request using NSURLRequest http://stackoverflow.com/questions/4456966/how-to-send-json-data-in-the-http-request-using-nsurlrequest jsonDict jsonString JSONValue NSDictionary question jsonDict objectForKey @ question This isn't 100 clear and will take some re reading but everything should be here to get you started. And from what..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have any clues as to..
What does an underscore signify in the name of a member variable in Objective-C? [duplicate] http://stackoverflow.com/questions/5659156/what-does-an-underscore-signify-in-the-name-of-a-member-variable-in-objective-c
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour 1 This code will only add a new frame rendering action onto the queue if one isn't in the middle of executing. That way the CADisplayLink can fire continuously but it won't overload the..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature two. Bounty ends in 21 hours it'll go to whoever makes the most effort to help even if the answer isn't really useful in my case. A curious observation Modified the category implementation slightly #import..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now across reinstalls and apps if the hashing is done in the same way . Anyways nowadays 2013 this isn't necessary any more except if you need a stable device identifier on iOS 6.0. Edit 4 In iOS 7 Apple now..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown the IMP and function pointer methodology above. Since consumed parameters are rarely an issue this isn't likely to come up. Static Selectors Interestingly the compiler will not complain about selectors declared..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample minimum. I'm not sure that my MVC structure is any good. The model is in the AppDelegate which isn't ideal. Any suggestions to make it better are welcome. EDIT I tried to extract the main question and..
Syntax help - Variable as object name [duplicate] http://stackoverflow.com/questions/7940809/syntax-help-variable-as-object-name myRectNum 5 .height etc .. iphone objective c ios xcode share improve this question There isn't anything like this in the Objective C language and in general it's not going to be a very practical..
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 improve this question As of iOS 5.0 there is now a faster way to grab data from OpenGL ES. It isn't readily apparent but it turns out that the texture cache support added in iOS 5.0 doesn't just work..
http://stackoverflow.com/questions/158914/cropping-a-uiimage iphone objective c cocoa touch image manipulation share improve this question I'm going to copy paste my response to the same question elsewhere There isn't a simple class method to do this but there is a function that you can use to get the desired results CGImageCreateWithImageInRect CGImageRef CGRect will help you..
Expand/collapse section in UITableView http://stackoverflow.com/questions/1938921/expand-collapse-section-in-uitableview UITableViewRowAnimationFade You'd then setup your number numberOfRowsInSection to check the mybooleans value and return either 1 if the section isn't expanded or 1 the number of items in the section if it is expanded. NSInteger tableView UITableView tableView numberOfRowsInSection NSInteger section if mybooleans..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone to another type of interface e.g. REST based API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to add a proxy server between the iPhone and the web service Perhaps something that..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults hold some data. I make objects for this class and I need to them to last between sessions. Before I was putting all my information in NSUserDefaults but this isn't working. NSUserDefaults setObject forKey Attempt to insert non property value ' Player 0x3b0cc90 ' of class 'Player'. That is the error message I get when I put..
How can I deploy an iPhone application from Xcode to a real iPhone device? http://stackoverflow.com/questions/246422/how-can-i-deploy-an-iphone-application-from-xcode-to-a-real-iphone-device iPhone device without having a US 99 Apple certificate iphone xcode deployment certificate share improve this question It sounds like the application isn't signed. Download ldid from Cydia and then use it like so ldid S Applications AccelerometerGraph.app AccelerometerGraph Also be sure that the binary is marked as..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th UIInterfaceOrientationLandscapeRight NSLog @ Landscape detected self initWithNibName @ myViewControllerLandscape bundle nil But I can see in gdb that this isn't executed when the app is started with the device in landscape. The NSLog message doesn't fire. Why is this What have I done wrong Also if I explicitly put the initWithNibName..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version code so my recommendation can't be absolute A system version of 3.1 or greater is required to use CADisplayLink. The NSTimer class is used as fallback when it isn't available. NSString reqSysVer @ 3.1 NSString currSysVer UIDevice currentDevice systemVersion if currSysVer compare reqSysVer options NSNumericSearch NSOrderedAscending..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 part http stackoverflow.com questions 2793392 how do i compile a static library fat for armv6 armv7 and i386 Since Apple's latest changes the Simulator part isn't the same as the arm6 arm7 difference any more it's a different problem see above iphone xcode share improve this question ALTERNATIVES https gist.github.com..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview the wrong frame size by the fitting size. This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content has been loaded so we put the code into the webViewDidFinishLoad delegate method. void..
How to send json data in the Http request using NSURLRequest http://stackoverflow.com/questions/4456966/how-to-send-json-data-in-the-http-request-using-nsurlrequest alloc initWithData data encoding NSUTF8StringEncoding NSDictionary jsonDict jsonString JSONValue NSDictionary question jsonDict objectForKey @ question This isn't 100 clear and will take some re reading but everything should be here to get you started. And from what I can tell this is asynchronous. My UI is not locked up..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events the count of Cellular WiFi data you've used. I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have any clues as to how this can be accomplished iphone background location multitasking..
What does an underscore signify in the name of a member variable in Objective-C? [duplicate] http://stackoverflow.com/questions/5659156/what-does-an-underscore-signify-in-the-name-of-a-member-variable-in-objective-c
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour is created earlier as follows frameRenderingSemaphore dispatch_semaphore_create 1 This code will only add a new frame rendering action onto the queue if one isn't in the middle of executing. That way the CADisplayLink can fire continuously but it won't overload the queue with pending rendering actions if a frame takes longer..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature yet I'll extend the bounty deadline for another day or two. Bounty ends in 21 hours it'll go to whoever makes the most effort to help even if the answer isn't really useful in my case. A curious observation Modified the category implementation slightly #import NSDateFormatter Locale.h @implementation NSDateFormatter Locale..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now . That hash will always create the same result every time even across reinstalls and apps if the hashing is done in the same way . Anyways nowadays 2013 this isn't necessary any more except if you need a stable device identifier on iOS 6.0. Edit 4 In iOS 7 Apple now always returns a fixed value when querying the MAC to specifically..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown bridged casting but really it'd be better to simply use the IMP and function pointer methodology above. Since consumed parameters are rarely an issue this isn't likely to come up. Static Selectors Interestingly the compiler will not complain about selectors declared statically _controller performSelector @selector someMethod..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample and on the WWDC session video. I stripped it down to the bare minimum. I'm not sure that my MVC structure is any good. The model is in the AppDelegate which isn't ideal. Any suggestions to make it better are welcome. EDIT I tried to extract the main question and posted it here . 4 OVERVIEW The most important bit which loads..
Syntax help - Variable as object name [duplicate] http://stackoverflow.com/questions/7940809/syntax-help-variable-as-object-name Example for int i 1 i 7 i CGRect myRectNum i myImageView.bounds myRectNum 5 .height etc .. iphone objective c ios xcode share improve this question There isn't anything like this in the Objective C language and in general it's not going to be a very practical way of referring to data what if you typo a string the compiler..
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 not support them. iphone ios opengl es opengl es 2.0 share improve this question As of iOS 5.0 there is now a faster way to grab data from OpenGL ES. It isn't readily apparent but it turns out that the texture cache support added in iOS 5.0 doesn't just work for fast upload of camera frames to OpenGL ES but it can be..
http://stackoverflow.com/questions/158914/cropping-a-uiimage manipulation share improve this question I'm going to copy paste my response to the same question elsewhere There isn't a simple class method to do this but there is a function that you can use to get the desired results CGImageCreateWithImageInRect..
Expand/collapse section in UITableView http://stackoverflow.com/questions/1938921/expand-collapse-section-in-uitableview You'd then setup your number numberOfRowsInSection to check the mybooleans value and return either 1 if the section isn't expanded or 1 the number of items in the section if it is expanded. NSInteger tableView UITableView tableView numberOfRowsInSection..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone based API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to add a proxy server between the iPhone and..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults class and I need to them to last between sessions. Before I was putting all my information in NSUserDefaults but this isn't working. NSUserDefaults setObject forKey Attempt to insert non property value ' Player 0x3b0cc90 ' of class 'Player'. That..
How can I deploy an iPhone application from Xcode to a real iPhone device? http://stackoverflow.com/questions/246422/how-can-i-deploy-an-iphone-application-from-xcode-to-a-real-iphone-device Apple certificate iphone xcode deployment certificate share improve this question It sounds like the application isn't signed. Download ldid from Cydia and then use it like so ldid S Applications AccelerometerGraph.app AccelerometerGraph Also..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th NSLog @ Landscape detected self initWithNibName @ myViewControllerLandscape bundle nil But I can see in gdb that this isn't executed when the app is started with the device in landscape. The NSLog message doesn't fire. Why is this What have I done..
http://stackoverflow.com/questions/3339722/check-iphone-ios-version A system version of 3.1 or greater is required to use CADisplayLink. The NSTimer class is used as fallback when it isn't available. NSString reqSysVer @ 3.1 NSString currSysVer UIDevice currentDevice systemVersion if currSysVer compare reqSysVer..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 2793392 how do i compile a static library fat for armv6 armv7 and i386 Since Apple's latest changes the Simulator part isn't the same as the arm6 arm7 difference any more it's a different problem see above iphone xcode share improve this question..
How to determine the content size of a UIWebView? http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview This sounds terrible but it's actually not that bad. Since we do both frame changes right after each other the view isn't updated and doesn't flicker. Of course we have to wait until the content has been loaded so we put the code into the webViewDidFinishLoad..
How to send json data in the Http request using NSURLRequest http://stackoverflow.com/questions/4456966/how-to-send-json-data-in-the-http-request-using-nsurlrequest NSDictionary jsonDict jsonString JSONValue NSDictionary question jsonDict objectForKey @ question This isn't 100 clear and will take some re reading but everything should be here to get you started. And from what I can tell this..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events used. I suspect that the developer is registering his app as tracking location changes but the location services icon isn't visible while the app is running which I thought was a requirement. Does anyone have any clues as to how this can be accomplished..
What does an underscore signify in the name of a member variable in Objective-C? [duplicate] http://stackoverflow.com/questions/5659156/what-does-an-underscore-signify-in-the-name-of-a-member-variable-in-objective-c
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour dispatch_semaphore_create 1 This code will only add a new frame rendering action onto the queue if one isn't in the middle of executing. That way the CADisplayLink can fire continuously but it won't overload the queue with pending..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature for another day or two. Bounty ends in 21 hours it'll go to whoever makes the most effort to help even if the answer isn't really useful in my case. A curious observation Modified the category implementation slightly #import NSDateFormatter Locale.h..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now result every time even across reinstalls and apps if the hashing is done in the same way . Anyways nowadays 2013 this isn't necessary any more except if you need a stable device identifier on iOS 6.0. Edit 4 In iOS 7 Apple now always returns a..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown to simply use the IMP and function pointer methodology above. Since consumed parameters are rarely an issue this isn't likely to come up. Static Selectors Interestingly the compiler will not complain about selectors declared statically _controller..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample it down to the bare minimum. I'm not sure that my MVC structure is any good. The model is in the AppDelegate which isn't ideal. Any suggestions to make it better are welcome. EDIT I tried to extract the main question and posted it here . 4 OVERVIEW..
Syntax help - Variable as object name [duplicate] http://stackoverflow.com/questions/7940809/syntax-help-variable-as-object-name i myImageView.bounds myRectNum 5 .height etc .. iphone objective c ios xcode share improve this question There isn't anything like this in the Objective C language and in general it's not going to be a very practical way of referring to..
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 opengl es 2.0 share improve this question As of iOS 5.0 there is now a faster way to grab data from OpenGL ES. It isn't readily apparent but it turns out that the texture cache support added in iOS 5.0 doesn't just work for fast upload of camera..
http://stackoverflow.com/questions/10475513/uilabel-font-size have another UILabel elsewhere with systemFontOfSize 25 and it's much smaller than the itemTitle text. What's going on Isn't 25 supposed to be an absolute value i am so confused on how to programmatically change font size of uilabels. iphone uilabel..
opening and closing other UIViewControllers - any other approaches than to use protocol & delegate? http://stackoverflow.com/questions/11596200/opening-and-closing-other-uiviewcontrollers-any-other-approaches-than-to-use-p a protocol in a separate file needing to use a delegate all just to do the most normal task like closing a screen... Isn't there an easier less complex way or is this just the way it has to be done for example like self dismiss in SecondVC no..
What is the second parameter of NSLocalizedString()? http://stackoverflow.com/questions/1442822/what-is-the-second-parameter-of-nslocalizedstring Localization.strings @ Hello_World_Key @ Hello World Spanish.lproj Localization.strings @ Hello_World_Key @ Hola Mundo Isn't the English one redundant objective c iphone xcode iphone sdk 3.0 localization share improve this question The comment..
How to play YouTube Movie on an iPhone Application when tapped on UITableViewCell? http://stackoverflow.com/questions/1617723/how-to-play-youtube-movie-on-an-iphone-application-when-tapped-on-uitableviewcel play. If I tap somewhere else on the cell then it wouldn't play because my thumbnail doesn't extend all over the cell. Isn't there a way to make the movie to play in didSelectRowAtIndexPath I have seen some chaps suggest using Javascript but nobody..
What is the right choice between NSDecimal, NSDecimalNumber, CFNumber? http://stackoverflow.com/questions/1704504/what-is-the-right-choice-between-nsdecimal-nsdecimalnumber-cfnumber class only financial computations of this kind showed in an UITableView I do not have much background in C... Isn't it too fastidious and complicated to use functions like decimalNumberByAdding With Python it was easy to define __add__..
Order of UIViewController initialization and loading http://stackoverflow.com/questions/2053498/order-of-uiviewcontroller-initialization-and-loading sets up the ViewController in some way notifying the delegate as it goes should the code reside in the init method Isn't the reason for loadView existing to allow such code to be run at the appropriate moment It looks to me like I'll have to..
drawRect not being called in my subclass of UIImageView http://stackoverflow.com/questions/2612152/drawrect-not-being-called-in-my-subclass-of-uiimageview super dealloc @end I set a breakpoint on drawRect and it never hits leading me to think it never gets called at all. Isn't it supposed to be called when the view first loads Have I incorrectly overridden it iphone objective c cocoa touch uikit..
http://stackoverflow.com/questions/2720804/how-much-more-complex-is-it-to-draw-simple-curves-lines-and-circles-in-opengl-e where I draw some lines curves and circles. Just simple paths with some shadow. What would I do in OpenGL ES Isn't there this nice EAGLView layer thing One thing that comes to mind is how do touch events go into OpenGL ES Maybe that's..
How to dynamically resize UITableViewCell height http://stackoverflow.com/questions/3069339/how-to-dynamically-resize-uitableviewcell-height the text starts a new line. My question is do I need to reload the whole table just to increase the height of a cell Isn't there any other method I've been searching a lot and previous answers and tutorials just talk about how to calculate text..
get the array index in for statement in objective-c http://stackoverflow.com/questions/3701126/get-the-array-index-in-for-statement-in-objective-c but also the index of the values. In PHP it's simple foreach array as key value Here key will contain the index value. Isn't there a similar approach in objective c How else could I achieve this Please help iphone objective c share improve this..
How is retain setter implemented with @synthesize? http://stackoverflow.com/questions/3924463/how-is-retain-setter-implemented-with-synthesize UIView alloc initWithFrame CGRectMake 160.0f 70.0f 150.0f 310.0f self.overlay tempOverlay tempOverlay release Isn't the tempOverlay variable above unnecessary Can't I just do self.overlay UIView alloc initWithFrame CGRectMake 160.0f 70.0f..
Why Isn't Core Data Fetching My Data? http://stackoverflow.com/questions/5467193/why-isnt-core-data-fetching-my-data Isn't Core Data Fetching My Data My data for for an entity's attribute is not being fetched upon restart or not being saved before..
Looking for experiences on the Apple MFi program registration process [closed] http://stackoverflow.com/questions/5734071/looking-for-experiences-on-the-apple-mfi-program-registration-process is a big question mark and this info seems to be protected under NDA agreements with device vendors. Is this right Isn't there any way to get proper specifications about the communications protocols electronics components involved power output..
Why tack a protocol of NSObject to a protocol implementation http://stackoverflow.com/questions/679822/why-tack-a-protocol-of-nsobject-to-a-protocol-implementation NSObject write some methods. @end Is there any particular reason why MyProtocol conforms to the NSObject protocol Isn't that rather redundant in that if you do something such as id MyProtocol foo foo here conforms to NSObject AND MyProtocol..
RSA encryption library or Classes http://stackoverflow.com/questions/7023163/rsa-encryption-library-or-classes provide some valuable info. Thanks Aditya iphone encryption rsa encryption asymmetric share improve this question Isn't that what SecKeyEncrypt and SecKeyDecrypt functions do The functions SecKeyEncrypt and SecKeyDecrypt uses the RSA keys you..
http://stackoverflow.com/questions/729314/where-is-the-difference-between-an-window-xib-and-an-view-xib-template-for-iphon I would take the View XIB I had an Content View where I can put UI control elements inside. But what's an Window then Isn't that pretty much the same thing iphone xcode share improve this question On the iPhone each app typically has one window..
Getting “Expected a property attribute before 'strong'” when compiling an ARC file with LLVM-GCC http://stackoverflow.com/questions/8584152/getting-expected-a-property-attribute-before-strong-when-compiling-an-arc-fi 'strong' If I change strong to retain it compiles fine. Strong also works fine in LLVM Compiler. What am I missing Isn't strong synonymous with retain iphone ios automatic ref counting share improve this question You're using an obsolete..
Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC? http://stackoverflow.com/questions/9119042/why-does-apple-recommend-to-use-dispatch-once-for-implementing-the-singleton-pat onceToken ^ sharedInstance MyClass alloc init Do any other initialisation stuff here return sharedInstance Isn't it a bad idea to instantiate the singleton asynchronously in the background I mean what happens if I request that shared..
AFNetworking and No Internet Connection scenario http://stackoverflow.com/questions/9253496/afnetworking-and-no-internet-connection-scenario display a UIAlertView that says the error The only way is to wait the request timeout and execute the failure block Isn't there a way that instantly check if there's connection or not Thanks iphone ios cocoa touch afnetworking share improve..
iOS5 NSManagedObjectContext Concurrency types and how are they used? http://stackoverflow.com/questions/9657760/ios5-nsmanagedobjectcontext-concurrency-types-and-how-are-they-used that since the NSMainQueueConcurrencyType is executed in the main thread does this not allow for background processes Isn't this the same as not using threads iphone ios nsmanagedobjectcontext share improve this question The queue concurrency..
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