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2014/10/15 ¤U¤È 10:03:28
iphone Programming Glossary: aboutHow to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Tony Million's version of Reachability.h and Reachability.m to the project.. outdated Reachability class 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Apple's version of Reachability.h and Reachability.m to the project you..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices so your views can adjust and adapt any screen size. That's not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under.. read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under NDA at the moment. Be sure to read the API changelog on Apple Developer..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double radians double degrees return degrees M_PI 180 UIImage rotate UIImage..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does anyone know how to detect this iphone ios accelerometer shake motion detection..
How to force NSLocalizedString to use a specific language http://stackoverflow.com/questions/1669645/how-to-force-nslocalizedstring-to-use-a-specific-language You would want to call this sometime early in your application's startup. You can read more about language locale preferences here Internationalization Programming Topics Getting the Current Language..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received own the memory too and must release it when you are done. But if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers contained within..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints and Lean PDF Viewer for iPhone iPad iOs tips and hints There has been many Questions recently about drawing PDF's. Yes you can render PDF's very easily with a UIWebView but this cant give the performance..
iPhone/iOS JSON parsing tutorial [closed] http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial improve this question You will love this framework . And you will love this tool . For learning about JSON you might like this resource . And you'll probably love this tutorial . share improve this answer..
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 @ en_US df setLocale loc loc release Not too bad in onsies twosies but I'm dealing with about ten different apps and the first one I look at has 43 instances of this scenario. So any clever ideas.. didn't. The locale of the formatter is still en_GB. It appears that there is something strange about an init method in a category. Final answer See the accepted answer below. iphone ios locale nsdateformatter..
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 c ios automatic ref counting share improve this question Solution The compiler is warning about this for a reason. It's very rare that this warning should simply be ignored and it's easy to work around... issue this isn't likely to come up. Static Selectors Interestingly the compiler will not complain about selectors declared statically _controller performSelector @selector someMethod The reason for this is.. The reason for this is because the compiler actually is able to record all of the information about the selector and the object during compilation. It doesn't need to make any assumptions about anything...
Reducing piracy of iPhone applications http://stackoverflow.com/questions/846309/reducing-piracy-of-iphone-applications approaches to this problem at the present time Please refrain from non programming answers about how piracy is inevitable etc. iphone piracy piracy prevention share improve this question UPDATE..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk share improve this question METHOD 1 Use a simple ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Tony Million's version of Reachability.h and Reachability.m to the project found here https github.com tonymillion Reachability 3 Update.. startNotifier METHOD 2 Do it yourself the old way using Apple's outdated Reachability class 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Apple's version of Reachability.h and Reachability.m to the project you can get those here 3 Add @class Reachability to the .h file..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices screen sizes. Use the auto resizing capabilities of iOS so your views can adjust and adapt any screen size. That's not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under NDA at the moment. Be sure to read the API changelog on.. can adjust and adapt any screen size. That's not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under NDA at the moment. Be sure to read the API changelog on Apple Developer website if you can access to it. Edit As iOS 6 is now out check..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double radians double degrees return degrees M_PI 180 UIImage rotate UIImage src UIImageOrientation orientation UIGraphicsBeginImageContext..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does anyone know how to detect this iphone ios accelerometer shake motion detection share improve this question In 3.0 there's now an easier..
How to force NSLocalizedString to use a specific language http://stackoverflow.com/questions/1669645/how-to-force-nslocalizedstring-to-use-a-specific-language
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received alloc method but there are a few others or a copy method you own the memory too and must release it when you are done. But if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview you refer to in your response is a transform that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers contained within the one layer that I'm rotating. share improve this answer..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints and Lean PDF Viewer for iPhone iPad iOs tips and hints There has been many Questions recently about drawing PDF's. Yes you can render PDF's very easily with a UIWebView but this cant give the performance and functionality that you would expect from a good PDF..
iPhone/iOS JSON parsing tutorial [closed] http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial
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 is a bit messy NSLocale loc NSLocale alloc initWithLocaleIdentifier @ en_US df setLocale loc loc release Not too bad in onsies twosies but I'm dealing with about ten different apps and the first one I look at has 43 instances of this scenario. So any clever ideas for a macro overridden class whatever to minimize the effort.. 2001 05 05 05 34 56 PM 0000 As you can see the setLocale simply didn't. The locale of the formatter is still en_GB. It appears that there is something strange about an init method in a category. Final answer See the accepted answer below. iphone ios locale nsdateformatter share improve this question Instead of subclassing..
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 code so that I don't get this warning anymore iphone objective c ios automatic ref counting share improve this question Solution The compiler is warning about this for a reason. It's very rare that this warning should simply be ignored and it's easy to work around. Here's how SEL selector NSSelectorFromString @ someMethod.. 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 The reason for this is because the compiler actually is able to record all of the.. statically _controller performSelector @selector someMethod The reason for this is because the compiler actually is able to record all of the information about the selector and the object during compilation. It doesn't need to make any assumptions about anything. I checked this a year a so ago by looking at the source..
Reducing piracy of iPhone applications http://stackoverflow.com/questions/846309/reducing-piracy-of-iphone-applications access that extra data What seem to be the best available technical approaches to this problem at the present time Please refrain from non programming answers about how piracy is inevitable etc. iphone piracy piracy prevention share improve this question UPDATE Please visit and read Thanks to chpwn in the comments. Code..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk Use a simple ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Tony Million's version of Reachability.h and Reachability.m to the project found here https.. old way using Apple's outdated Reachability class 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Apple's version of Reachability.h and Reachability.m to the project you can get those here 3..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices capabilities of iOS so your views can adjust and adapt any screen size. That's not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under NDA at the moment... not very hard read some documentation about that. It will save you a lot of time. iOS 6 also offers new features about this but this is still under NDA at the moment. Be sure to read the API changelog on Apple Developer website if you can..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double radians double degrees return degrees M_PI 180 UIImage rotate UIImage src UIImageOrientation..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does anyone know how to detect this iphone ios accelerometer shake motion detection share improve..
How to force NSLocalizedString to use a specific language http://stackoverflow.com/questions/1669645/how-to-force-nslocalizedstring-to-use-a-specific-language and French as fallbacks. You would want to call this sometime early in your application's startup. You can read more about language locale preferences here Internationalization Programming Topics Getting the Current Language and Locale share..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received or a copy method you own the memory too and must release it when you are done. But if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview is a transform that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers contained within the one layer that..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints and Lean PDF Viewer for iPhone iPad iOs tips and hints There has been many Questions recently about drawing PDF's. Yes you can render PDF's very easily with a UIWebView but this cant give the performance and functionality..
iPhone/iOS JSON parsing tutorial [closed] http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial
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 alloc initWithLocaleIdentifier @ en_US df setLocale loc loc release Not too bad in onsies twosies but I'm dealing with about ten different apps and the first one I look at has 43 instances of this scenario. So any clever ideas for a macro overridden.. the setLocale simply didn't. The locale of the formatter is still en_GB. It appears that there is something strange about an init method in a category. Final answer See the accepted answer below. iphone ios locale nsdateformatter share improve..
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 iphone objective c ios automatic ref counting share improve this question Solution The compiler is warning about this for a reason. It's very rare that this warning should simply be ignored and it's easy to work around. Here's how SEL.. 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 The reason for this is because the compiler.. @selector someMethod The reason for this is because the compiler actually is able to record all of the information about the selector and the object during compilation. It doesn't need to make any assumptions about anything. I checked this a..
Reducing piracy of iPhone applications http://stackoverflow.com/questions/846309/reducing-piracy-of-iphone-applications best available technical approaches to this problem at the present time Please refrain from non programming answers about how piracy is inevitable etc. iphone piracy piracy prevention share improve this question UPDATE Please visit and read..
http://stackoverflow.com/questions/1024603/opengl-es-render-to-texture
Understanding iOS 6 Interface orientation change http://stackoverflow.com/questions/12778636/understanding-ios-6-interface-orientation-change and they do not have answer for mine. iphone objective c ios6 uiinterfaceorientation share improve this question About preferredInterfaceOrientationForPresentation preferredInterfaceOrientationForPresentation is never called because this is..
How big should a UIBarButtonItem image be? http://stackoverflow.com/questions/1590170/how-big-should-a-uibarbuttonitem-image-be page doesn't list anything about the size the image should be. iphone uibarbuttonitem share improve this question About 20× 20 points according to the Human Interface Guidelines . A document that should definitely be in your bookmarks..
http://stackoverflow.com/questions/1757303/parsing-json-dates-on-iphone a better Obj C solution. If not I may keep this or look for a way to change the serialization format in .NET EDIT About that JSON DateTime format... If you have any control on the service it would probably be best to convert the date to a string..
Most effective way to do networking on Mac/iPhone? http://stackoverflow.com/questions/4269613/most-effective-way-to-do-networking-on-mac-iphone worth nothing that there is absolutely nothing wrong at all with just using GK .. the performance can 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..
Difference between iPhone Simulator and Android Emulator http://stackoverflow.com/questions/4544588/difference-between-iphone-simulator-and-android-emulator itself unless you simulate again memory warnings from the Simulator's menu item. In fact if you go to Settings General About you'll see that the Simulator's disk capacity is the same as the filesystem of the Mac it's installed on share improve..
How to Parse XML File using xmlparsing on iphone? http://stackoverflow.com/questions/5715174/how-to-parse-xml-file-using-xmlparsing-on-iphone entry a3 entry entry b3 entry entry c3 entry row tbody tgroup informaltable para systemEntity section id about title About this Document title para this is a comment para section chapter iphone xml ios xml parsing share improve this question..
iPhone Dev: Xcode debugger does not stop on breakpoints http://stackoverflow.com/questions/601265/iphone-dev-xcode-debugger-does-not-stop-on-breakpoints is to select the compiler version and GCC 4.0 is selected but that is a one line section with no additional options. About where to put breakpoints My only breakpoint for now is in main and it is not being hit I am starting the debugger with the..
http://stackoverflow.com/questions/602717/aligning-uitoolbar-items another way to accomplish this create some buttons UIBarButtonItem aboutButton UIBarButtonItem alloc initWithTitle @ About style UIBarButtonItemStyleBordered target self action @selector showAbout toolbar setItems NSArray arrayWithObjects settingsButton.. UIBarButtonItem alloc initWithTitle @ About style UIBarButtonItemStyleBordered target self action @selector showAbout toolbar setItems NSArray arrayWithObjects settingsButton deleteButton aboutButton nil Add the toolbar as a subview to the..
Programmatically Setting UITabBar Titles http://stackoverflow.com/questions/6056354/programmatically-setting-uitabbar-titles i got the 3 tab in my viewcontroller. But the problem is i want to set the name of the tab as 1 Home 2 Favorites 3 About us I had tried by writing the below code 1 obj_FirstViewController.tabBarItem.title @ Home 2 self.title @ My View Controller..
Objective-c NSArray init versus initWithCapacity:0 http://stackoverflow.com/questions/6077422/objective-c-nsarray-init-versus-initwithcapacity0 small. initWithCapacity says I expect this array to have no more than this many elements for the foreseeable future. About the only place where I would expect initWithCapacity 0 to be reasonable is if you are creating an array that you don't expect..
http://stackoverflow.com/questions/6851660/version-vs-build-in-xcode-4 These are the actual software version numbers as opposed to the values used for marketing. If you go to Xcode menu About Xcode you'll see the Version and Build numbers. If you hit the More Info... button you'll see a bunch of different versions... is also available from the Software Developer section of the System Information app available by opening Apple menu About This Mac System Report... . For example Xcode 4.2 4C139 . Marketing version 4.2 is Build major version 4 Build minor version..
http://stackoverflow.com/questions/7281085/whats-the-difference-between-version-number-in-itunes-connect-bundle-versio need to be a pure version number. This can be something like 12345 or 1.2.3 Build 12345AB . This is shown in the About window for Mac OS X apps for example and is often more a Build Number than a Version Number . Bundle Version String CFBundleShortVersionString..
What's the best way of learning iPhone programming when coming from Java? http://stackoverflow.com/questions/783321/whats-the-best-way-of-learning-iphone-programming-when-coming-from-java available apple docs on this topic. A fast overview gave me a number of about 8.000 eight thousand DIN A4 PDF pages. About 10 of the content is almost equal for my feeling. After reading for 2 weeks now I figured out that I would forget fast what..
Most efficient way to draw part of an image in iOS http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios to CPU soo you can expect the UIKit library will utilize this because whole UIKit is implemented on top of OpenGL. About Limitations Because optimization is a kind of work about micro management specific numbers and small facts are very important...
When to use properties in objective C? http://stackoverflow.com/questions/8194281/when-to-use-properties-in-objective-c it's in no way bad programming to use lazy techniques like I described above vs perfectly figuring out everything. About 98 of programming is debugging and anything you can do to prevent bugs or make them easier to find is goodness. I'll also..
iOS Launching Settings -> Restrictions URL Scheme http://stackoverflow.com/questions/8246070/ios-launching-settings-restrictions-url-scheme not on it maybe it's just not found out yet. List of currently known URLs in the Settings app prefs root General path About prefs root General path ACCESSIBILITY prefs root AIRPLANE_MODE prefs root General path AUTOLOCK prefs root General path..
iOS 5: Curious about UIAppearance http://stackoverflow.com/questions/8257556/ios-5-curious-about-uiappearance of documentation out there yet. I will shortly summarize what I remember to explain where my question is coming from About UIAppearance So far you had to customize EVERY navigation bar toolbar etc. property in all your app view controllers. With..
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