2014/10/15 下午 10:05:18
iphone Programming Glossary: commonUse CoreData or SQLite on iPhone? [closed] http://stackoverflow.com/questions/1318467/use-coredata-or-sqlite-on-iphone of SQLite vs. CoreData iphone ios sqlite core data share improve this question This is a common question here Core Data vs. SQLite for SQL experienced developers Core Data vs Sqlite and performance..
How to use NSXMLParser to parse parent-child elements that have the same name http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name parsing iphone objective c nsxmlparser xml parsing share improve this question This is a common problem with parsers like this one of type SAX where you have to manually keep track of the current..
Do I need to disable NSLog before release Application? http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application sure you only do this for the Debug configuration and not for Beta or Release versions. Then in a common header file you can do something like #ifdef DEBUG_MODE #define DLog s ... NSLog @ p @ d @ self NSString..
What is a “delegate” in Objective C's iPhone development? [duplicate] http://stackoverflow.com/questions/2534094/what-is-a-delegate-in-objective-cs-iphone-development data from a web site asynchronously using the NSURLConnection class . NSURLConnection has three common delegates void connection NSURLConnection connection didFailWithError NSError error void connectionDidFinishLoading..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions difficult to implement such an application when starting in landscape mode is desired. The most common observed effect are scrambled layouts and areas of the screen where touches are no longer recognized...
Is it true that one should not use NSLog() on production code? http://stackoverflow.com/questions/300673/is-it-true-that-one-should-not-use-nslog-on-production-code my Release Distribution builds. Should I avoid using this If so what alternatives are most common between experienced Objective C programmers iphone objective c nslog share improve this question..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app Ad hoc . Enter a profile name I named mine Evertsson Common Ad Hoc . Select the app id. I have a common app id to use for multiple apps Evertsson Common . Select the devices in my case my own and my tester's...
Is there a way to make drawRect work right NOW? http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now and the OS in a word waits until all processing is done. This can be infuriating in the common situation where you want to have a view controller 1 starts some function 2 which incrementally 3 creates..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c Delegates simply implement this method and they're done. This method is straight forward and common in Apple's libraries but new code should use the more modern approach below. 2 A Formal Protocol The..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable trying to understand how strategies some folks use to distinguish instance vars vs. properties. A common pattern is the following @interface MyClass NSObject NSString _myVar @property nonatomic retain NSString..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app key. Does this sound right and has anyone got or seen any sample code I have to think this is a common piece of code. UPDATE Will Apple allow this It is a charity app so I am assuming there is no issue...
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c appear in viewedCardsArray . Looking through SO I know these basic questions are pretty common to ObjC newbies like me so apologies in advance objective c iphone cocoa cocoa touch share improve..
Use CoreData or SQLite on iPhone? [closed] http://stackoverflow.com/questions/1318467/use-coredata-or-sqlite-on-iphone exist to still use SQLite What are advantages disadvantages of SQLite vs. CoreData iphone ios sqlite core data share improve this question This is a common question here Core Data vs. SQLite for SQL experienced developers Core Data vs Sqlite and performance Core Data vs sqlite3 is it worth using core data for a simple..
How to use NSXMLParser to parse parent-child elements that have the same name http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name this xml file is it possible or I have to change to Tree based parsing iphone objective c nsxmlparser xml parsing share improve this question This is a common problem with parsers like this one of type SAX where you have to manually keep track of the current depth of the XML tree you're in. The problem as always is that..
Do I need to disable NSLog before release Application? http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application a value to Preprocessor Macros value like DEBUG_MODE 1 Make sure you only do this for the Debug configuration and not for Beta or Release versions. Then in a common header file you can do something like #ifdef DEBUG_MODE #define DLog s ... NSLog @ p @ d @ self NSString stringWithUTF8String __FILE__ lastPathComponent __LINE__..
What is a “delegate” in Objective C's iPhone development? [duplicate] http://stackoverflow.com/questions/2534094/what-is-a-delegate-in-objective-cs-iphone-development when an event happens. For example if you're downloading data from a web site asynchronously using the NSURLConnection class . NSURLConnection has three common delegates void connection NSURLConnection connection didFailWithError NSError error void connectionDidFinishLoading NSURLConnection connection void connection NSURLConnection..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions mode autorotation can be implemented. It is especially difficult to implement such an application when starting in landscape mode is desired. The most common observed effect are scrambled layouts and areas of the screen where touches are no longer recognized. A simple search for questions tagged iphone and landscape..
Is it true that one should not use NSLog() on production code? http://stackoverflow.com/questions/300673/is-it-true-that-one-should-not-use-nslog-on-production-code Xcode gcc would automatically strip those calls out when building my Release Distribution builds. Should I avoid using this If so what alternatives are most common between experienced Objective C programmers iphone objective c nslog share improve this question Preprocessor macros are indeed great for debugging. There's..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app . Click the button New Profile . Select the radio button Ad hoc . Enter a profile name I named mine Evertsson Common Ad Hoc . Select the app id. I have a common app id to use for multiple apps Evertsson Common . Select the devices in my case my own and my tester's. Submit. Refresh the browser until the status field reads..
Is there a way to make drawRect work right NOW? http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now processing is finished. setNeedsDisplay flags a view as invalidated and the OS in a word waits until all processing is done. This can be infuriating in the common situation where you want to have a view controller 1 starts some function 2 which incrementally 3 creates a more and more complicated artwork and 4 at each step..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c respondsToSelector as described above when calling this method. Delegates simply implement this method and they're done. This method is straight forward and common in Apple's libraries but new code should use the more modern approach below. 2 A Formal Protocol The newer option is to declare a formal protocol. The declaration..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable vs. instance variable I'm trying to understand how strategies some folks use to distinguish instance vars vs. properties. A common pattern is the following @interface MyClass NSObject NSString _myVar @property nonatomic retain NSString myVar @end @implementation MyClass @synthesize myVar _myVar..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app there otherwise the user would need to use their API key. Does this sound right and has anyone got or seen any sample code I have to think this is a common piece of code. UPDATE Will Apple allow this It is a charity app so I am assuming there is no issue. Re UPDATE I assumed wrong. Apple will not allow payments directly..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c . However when stepping through the code at no point does CardIdObject appear in viewedCardsArray . Looking through SO I know these basic questions are pretty common to ObjC newbies like me so apologies in advance objective c iphone cocoa cocoa touch share improve this question Have you initialized your viewedCardsArray..
Code Sign error: The identity 'iPhone Developer: x Xxxxx' doesn't match any identity in any profile http://stackoverflow.com/questions/1072311/code-sign-error-the-identity-iphone-developer-x-xxxxx-doesnt-match-any-iden the same result. Another strange thing is the new certificate has an extra string with brackets after my name in the common name when I look at it using Keychain Access like this iPhone Developer x Xxxxx 3BDUAJYC9Q `My original certificate didn't..
Use CoreData or SQLite on iPhone? [closed] http://stackoverflow.com/questions/1318467/use-coredata-or-sqlite-on-iphone advantages disadvantages of SQLite vs. CoreData iphone ios sqlite core data share improve this question This is a common question here Core Data vs. SQLite for SQL experienced developers Core Data vs Sqlite and performance Core Data vs sqlite3..
How to use NSXMLParser to parse parent-child elements that have the same name http://stackoverflow.com/questions/2005448/how-to-use-nsxmlparser-to-parse-parent-child-elements-that-have-the-same-name to change to Tree based parsing iphone objective c nsxmlparser xml parsing share improve this question This is a common problem with parsers like this one of type SAX where you have to manually keep track of the current depth of the XML tree..
Do I need to disable NSLog before release Application? http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application DEBUG_MODE 1 Make sure you only do this for the Debug configuration and not for Beta or Release versions. Then in a common header file you can do something like #ifdef DEBUG_MODE #define DLog s ... NSLog @ p @ d @ self NSString stringWithUTF8String..
Crossplatform iPhone / Android code sharing http://stackoverflow.com/questions/2380258/crossplatform-iphone-android-code-sharing sharing Simply put What is the most effective way to share reuse code between iPhone and Android builds The two most common scenarios I think would be Blank slate new project knowing ahead of time there is a large chunk of reusable logic that needs..
What is a “delegate” in Objective C's iPhone development? [duplicate] http://stackoverflow.com/questions/2534094/what-is-a-delegate-in-objective-cs-iphone-development if you're downloading data from a web site asynchronously using the NSURLConnection class . NSURLConnection has three common delegates void connection NSURLConnection connection didFailWithError NSError error void connectionDidFinishLoading NSURLConnection..
How to set the width of a cell in a UITableView in grouped style http://stackoverflow.com/questions/2539021/how-to-set-the-width-of-a-cell-in-a-uitableview-in-grouped-style for your UITableView just like what I do here for UITableViewCells. However subclassing UITableViewCells is a much common light and Apple way. Secondly if your UITableView have backgroundView you don't want its backgroundView be narrowed down..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions It is especially difficult to implement such an application when starting in landscape mode is desired. The most common observed effect are scrambled layouts and areas of the screen where touches are no longer recognized. A simple search for..
How to accommodate for the iPhone 4 screen resolution? http://stackoverflow.com/questions/2992360/how-to-accommodate-for-the-iphone-4-screen-resolution at 326 ppi This little detail affects our apps in a heavy way. Most of the demo apps on the net have one thing in common They position views in the believe that the screen has a fixed size of 320 x 480 pixels. So what most if not all developers..
Is it true that one should not use NSLog() on production code? http://stackoverflow.com/questions/300673/is-it-true-that-one-should-not-use-nslog-on-production-code calls out when building my Release Distribution builds. Should I avoid using this If so what alternatives are most common between experienced Objective C programmers iphone objective c nslog share improve this question Preprocessor macros..
How to Deal with Temporary NSManagedObject instances? http://stackoverflow.com/questions/3256195/how-to-deal-with-temporary-nsmanagedobject-instances toPersistentStore. Now how do I ensure that these temporary objects don't get to the data which I fetch from the common to both stores context Or do I have to create separate contexts for such a task UPD Now I'm thinking about making separate..
What does this ^ syntax mean in Objective-C? http://stackoverflow.com/questions/3499186/what-does-this-syntax-mean-in-objective-c capture read only copies of local variables similar to 𦣇losures in other languages This is kind of functionality is common in dynamically typed interpreted languages but has never before been widely available to C programmers. Apple has published..
How to get audio volume level, and volume changed notifications on iOS 4? http://stackoverflow.com/questions/3651252/how-to-get-audio-volume-level-and-volume-changed-notifications-on-ios-4 object nil This should notify my method volumeChanged of any SystemVolume changes but it doesn't actually do so. Since common belief tells me that if one is working too hard to achieve something with Cocoa one is doing something fundamentally wrong..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app the radio button Ad hoc . Enter a profile name I named mine Evertsson Common Ad Hoc . Select the app id. I have a common app id to use for multiple apps Evertsson Common . Select the devices in my case my own and my tester's. Submit. Refresh..
http://stackoverflow.com/questions/4724980/making-the-iphone-vibrate the other hand does nothing on unsupported devices. So if you are going to vibrate the device continuously as a alert common sense says use function 2. See also iPhone Tutorial Better way to check capabilities of iOS devices article. First add the..
Is there a way to make drawRect work right NOW? http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now flags a view as invalidated and the OS in a word waits until all processing is done. This can be infuriating in the common situation where you want to have a view controller 1 starts some function 2 which incrementally 3 creates a more and more..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c when calling this method. Delegates simply implement this method and they're done. This method is straight forward and common in Apple's libraries but new code should use the more modern approach below. 2 A Formal Protocol The newer option is to..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable variable I'm trying to understand how strategies some folks use to distinguish instance vars vs. properties. A common pattern is the following @interface MyClass NSObject NSString _myVar @property nonatomic retain NSString myVar @end @implementation..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app need to use their API key. Does this sound right and has anyone got or seen any sample code I have to think this is a common piece of code. UPDATE Will Apple allow this It is a charity app so I am assuming there is no issue. Re UPDATE I assumed..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c at no point does CardIdObject appear in viewedCardsArray . Looking through SO I know these basic questions are pretty common to ObjC newbies like me so apologies in advance objective c iphone cocoa cocoa touch share improve this question Have..
Common multithreading mistakes beginners make on iPhone http://stackoverflow.com/questions/1357108/common-multithreading-mistakes-beginners-make-on-iphone multithreading mistakes beginners make on iPhone I just introduced multithreading into my app JUST to get a silly UIActivityIndicatorView..
Accessing Method from other Classes Objective-C http://stackoverflow.com/questions/1658433/accessing-method-from-other-classes-objective-c both of the class files. This is what I want to do though I want to make a new class in It's own file that has all the Common Methods. Then whenever another class needs to call the Method I simply call it from the other file. This way when I want.. a lot. Allow me to give you one. File ViewController1.m @implementation ViewController1 Do Some awesome stuff.... CALL CommonMethod HERE @end File ViewController2.m @implementation ViewController2 Do Some awesome stuff.... CALL CommonMethod HERE.. CALL CommonMethod HERE @end File ViewController2.m @implementation ViewController2 Do Some awesome stuff.... CALL CommonMethod HERE @end File CommonClass @implementation commonClass void CommonMethod id sender So some awesome generic stuff.....
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app . Click the button New Profile . Select the radio button Ad hoc . Enter a profile name I named mine Evertsson Common Ad Hoc . Select the app id. I have a common app id to use for multiple apps Evertsson Common . Select the devices in my.. I named mine Evertsson Common Ad Hoc . Select the app id. I have a common app id to use for multiple apps Evertsson Common . Select the devices in my case my own and my tester's. Submit. Refresh the browser until the status field reads Active..
http://stackoverflow.com/questions/4060353/common-lisp-on-iphone-ios LISP on iPhone iOS Is it possible to call a Common Lisp function in iOS If so is it possible create it in a dynamic library.. LISP on iPhone iOS Is it possible to call a Common Lisp function in iOS If so is it possible create it in a dynamic library iphone ios ios4 lisp common lisp share improve..
http://stackoverflow.com/questions/5393844/common-ide-to-develop-mobile-applications-and-deploy-it-to-iphone-android-blac IDE to develop mobile applications and deploy it to iphone Android Blackberry etc duplicate Possible Duplicate Technology..
Has anyone got any code examples of ECL Lisp for Iphone development? http://stackoverflow.com/questions/5770020/has-anyone-got-any-code-examples-of-ecl-lisp-for-iphone-development ios lisp common lisp ecl share improve this question The ECL for iOS distribution includes a code example of a Common Lisp application running on the iPhone. The example is a Swank server the backend for the SLIME and MCLIDE Lisp development.. use the Xcode Interface Builder to design the GUI. ECL compiles to C and supports inline Objective C so you can use Common Lisp as an abstraction layer on top or integrate Common Lisp implemented functionality with Objective C code. The repository.. compiles to C and supports inline Objective C so you can use Common Lisp as an abstraction layer on top or integrate Common Lisp implemented functionality with Objective C code. The repository for the project includes examples of combining Common..
AVPlayer with one video tracks and multiples audio tracks http://stackoverflow.com/questions/6735979/avplayer-with-one-video-tracks-and-multiples-audio-tracks
! vs == nil in objective-c [duplicate] http://stackoverflow.com/questions/6782190/vs-nil-in-objective-c Whether the C standard defines NULL to be 0 is an interesting topic for me... According to C99 standard section 7.17 Common definitions NULL which expands to an implementation defined null pointer constant So NULL is defined in stddef.h to an implementation..
iPhone simulators crash on app launch http://stackoverflow.com/questions/6790848/iphone-simulators-crash-on-app-launch Library InboxLib IAirship Library PushLib IAirship Library StoreFrontLib IAirship Library SubscriptionLib IAirship Common I Users kyle Library Developer Xcode DerivedData app biyijbbdlfmlcihjougudvgjsxcd Build Intermediates app.build Debug iphonesimulator..
NSDefaultRunLoopMode vs NSRunLoopCommonModes http://stackoverflow.com/questions/7222449/nsdefaultrunloopmode-vs-nsrunloopcommonmodes vs NSRunLoopCommonModes Dear good people of stackoverflow Just like the last time I hereby bring up a question I recently tumble upon. I hope.. soon as I touch iPhone screen. Thankfully an awesome blog post by J繹rn suggests an alternative option using NSRunLoopCommonModes for connection. That gets me look into detail of the two modes NSDefaultRunLoopMode and NSRunLoopCommonModes but the.. NSRunLoopCommonModes for connection. That gets me look into detail of the two modes NSDefaultRunLoopMode and NSRunLoopCommonModes but the apple document does not kindly explain other than saying NSDefaultRunLoopMode The mode to deal with input sources..
How can I decode data with Base64 in IPhone http://stackoverflow.com/questions/892223/how-can-i-decode-data-with-base64-in-iphone
Will my iPhone app take a performance hit if I use Objective-C for low level code? http://stackoverflow.com/questions/926728/will-my-iphone-app-take-a-performance-hit-if-i-use-objective-c-for-low-level-cod hard numbers for performance of various Objective C method calls versus C and C in his post Performance Comparisons of Common Operations . Also this post by Savoy Software is an interesting read when it comes to tuning the performance of an iPhone..
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