2014/10/15 下午 10:14:39
iphone Programming Glossary: suchHow to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices detect a widescreen not an actual iPhone 5. Next versions of the iPod touch will maybe also have such a screen so we may use another set of macros. Let's rename the original macro IS_WIDESCREEN #define.. iPhone 5 screen missing the Default 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString..
How does Apple know you are using private API? http://stackoverflow.com/questions/2842357/how-does-apple-know-you-are-using-private-api by this. 2. nm u This will list all linked symbols. This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could.. symbols. This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection of Three20 based.. Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection of Three20 based apps last few months. 3. Listing..
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 a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible I've investigated using CALayer and have..
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 reader editor for OSX iphone ios ipad pdf calayer share improve this question I have build such kind of application using approximatively the same approach except I cache the generated image on the..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am I better off just trying to use regular expressions iphone html parsing html..
How to build a framework or library for other developers, the secure way? http://stackoverflow.com/questions/4065052/how-to-build-a-framework-or-library-for-other-developers-the-secure-way charge for the library framework we must protect the code somehow. How can we build a framework in such a way that the user of our framework can't see the source code similar to how we can't see the source..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices working on a method to sync core data stored in an iPhone application between multiple devices such as an iPad or a Mac. There are not many if any at all sync frameworks for use with Core Data on iOS... system. Is there anything fancy that I need to be thinking about I have looked at REST frameworks such as ObjectiveResource Core Resource and RestfulCoreData . Of course these are all working with Ruby on..
What work has been done on cross-platform mobile development? [closed] http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development targeted iPhone Blackberry and Android Are there other platforms which are better suited to such an endeavor Note that I am particularly asking about client side software not web apps though any information..
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 has a feature that bites you unexpectedly If you do a simple fixed format operation such as NSDateFormatter fmt NSDateFormatter alloc init fmt setDateFormat @ yyyyMMddHHmmss NSString dateStr.. to prefix your category method somehow to avoid name conflicts just in case Apple decides to add such a method in a future version of the OS. In case you're always using the same date format s you could..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring read in apple forum that The OS does not keep network statistics on a process by process basis. As such there's no exact solution to this problem. You can however get network statistics for each network interface...
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview a UIWebView If not is there another way to pull raw HTML content from a web page in the iPhone SDK such as an equivalent of the .NET WebClient openRead Thanks in advance html iphone uiwebview share improve.. from a currently loaded UIWebView using its stringByEvaluatingJavascriptFromString method as such NSString html yourWebView stringByEvaluatingJavaScriptFromString @ document.body.innerHTML This will..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices Edit Better detection As stated by some people this does only detect a widescreen not an actual iPhone 5. Next versions of the iPod touch will maybe also have such a screen so we may use another set of macros. Let's rename the original macro IS_WIDESCREEN #define IS_WIDESCREEN fabs double UIScreen mainScreen bounds .size.height.. won't work if the application is not optimised for the iPhone 5 screen missing the Default 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized app. Final note Comments and suggestions have..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone like this Note The printf calls are only for demonstrating the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString key @ my password NSString secret @ text to encrypt NSData..
How does Apple know you are using private API? http://stackoverflow.com/questions/2842357/how-does-apple-know-you-are-using-private-api clearly you should not use like IOKit and WebKit can be detected by this. 2. nm u This will list all linked symbols. This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection of Three20 based apps last few.. can be detected by this. 2. nm u This will list all linked symbols. This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection of Three20 based apps last few months. 3. Listing Objective C selectors or strings.. 2. nm u This will list all linked symbols. This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection of Three20 based apps last few months. 3. Listing Objective C selectors or strings Objective C selectors..
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 do I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible I've investigated using CALayer and have run through all the pragmatic programmer Core Animation podcasts..
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 paging with nice transitions skim everything it seems PDF reader editor for OSX iphone ios ipad pdf calayer share improve this question I have build such kind of application using approximatively the same approach except I cache the generated image on the disk and always generate two to three images in advance in..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone HTML on the iPhone closed Can anyone recommend a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am I better off just trying to use regular expressions iphone html parsing html content extraction share improve this question I found using..
How to build a framework or library for other developers, the secure way? http://stackoverflow.com/questions/4065052/how-to-build-a-framework-or-library-for-other-developers-the-secure-way to framework library development. But when we want to charge for the library framework we must protect the code somehow. How can we build a framework in such a way that the user of our framework can't see the source code similar to how we can't see the source code of Apples frameworks They only ship the header files..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices with web server and then push to other devices I have been working on a method to sync core data stored in an iPhone application between multiple devices such as an iPad or a Mac. There are not many if any at all sync frameworks for use with Core Data on iOS. However I have been thinking about the following concept A.. apparently according to the comments this is not a workable system. Is there anything fancy that I need to be thinking about I have looked at REST frameworks such as ObjectiveResource Core Resource and RestfulCoreData . Of course these are all working with Ruby on Rails which I am not tied to but it's a place to start. The..
What work has been done on cross-platform mobile development? [closed] http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development closed Have any well documented or open source projects targeted iPhone Blackberry and Android Are there other platforms which are better suited to such an endeavor Note that I am particularly asking about client side software not web apps though any information about the difficulties of using web apps across multiple..
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 NSDateFormatter locale &ldquo feature&rdquo It seems that NSDateFormatter has a feature that bites you unexpectedly If you do a simple fixed format operation such as NSDateFormatter fmt NSDateFormatter alloc init fmt setDateFormat @ yyyyMMddHHmmss NSString dateStr fmt stringFromDate someDate fmt release Then it works fine.. initWithPOSIXLocaleAndFormat @ yyyyMMddHHmmss You might want to prefix your category method somehow to avoid name conflicts just in case Apple decides to add such a method in a future version of the OS. In case you're always using the same date format s you could also add category methods that return singleton instances with..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring functions voicemail general networking interface. i read in apple forum that The OS does not keep network statistics on a process by process basis. As such there's no exact solution to this problem. You can however get network statistics for each network interface. In general en0 is your Wi Fi interface and pdp_ip0..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview raw HTML content of a web page that has been loaded into a UIWebView If not is there another way to pull raw HTML content from a web page in the iPhone SDK such as an equivalent of the .NET WebClient openRead Thanks in advance html iphone uiwebview share improve this question The second question is actually easier.. request twice. You can get around this by grabbing the content from a currently loaded UIWebView using its stringByEvaluatingJavascriptFromString method as such NSString html yourWebView stringByEvaluatingJavaScriptFromString @ document.body.innerHTML This will grab the current HTML contents of the view using the Document..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices people this does only detect a widescreen not an actual iPhone 5. Next versions of the iPod touch will maybe also have such a screen so we may use another set of macros. Let's rename the original macro IS_WIDESCREEN #define IS_WIDESCREEN fabs double.. optimised for the iPhone 5 screen missing the Default 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized app...
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone only for demonstrating the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString key @ my password..
How does Apple know you are using private API? http://stackoverflow.com/questions/2842357/how-does-apple-know-you-are-using-private-api WebKit can be detected by this. 2. nm u This will list all linked symbols. This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection.. will list all linked symbols. This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection of Three20 based apps last few months... This can detect Undocumented C functions such as _UIImageWithName Objective C classes such as UIProgressHUD Ivars such as UITouch._phase which could be the cause of rejection of Three20 based apps last few months. 3. Listing Objective C selectors..
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 do I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible I've investigated using CALayer and have run through all the..
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 it seems PDF reader editor for OSX iphone ios ipad pdf calayer share improve this question I have build such kind of application using approximatively the same approach except I cache the generated image on the disk and always generate..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone a C or Objective C library for HTML parsing It needs to handle messy HTML code that won't quite validate. Does such a library exist or am I better off just trying to use regular expressions iphone html parsing html content extraction ..
How to build a framework or library for other developers, the secure way? http://stackoverflow.com/questions/4065052/how-to-build-a-framework-or-library-for-other-developers-the-secure-way But when we want to charge for the library framework we must protect the code somehow. How can we build a framework in such a way that the user of our framework can't see the source code similar to how we can't see the source code of Apples frameworks..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices devices I have been working on a method to sync core data stored in an iPhone application between multiple devices such as an iPad or a Mac. There are not many if any at all sync frameworks for use with Core Data on iOS. However I have been.. is not a workable system. Is there anything fancy that I need to be thinking about I have looked at REST frameworks such as ObjectiveResource Core Resource and RestfulCoreData . Of course these are all working with Ruby on Rails which I am not..
What work has been done on cross-platform mobile development? [closed] http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development or open source projects targeted iPhone Blackberry and Android Are there other platforms which are better suited to such an endeavor Note that I am particularly asking about client side software not web apps though any information about 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 It seems that NSDateFormatter has a feature that bites you unexpectedly If you do a simple fixed format operation such as NSDateFormatter fmt NSDateFormatter alloc init fmt setDateFormat @ yyyyMMddHHmmss NSString dateStr fmt stringFromDate.. You might want to prefix your category method somehow to avoid name conflicts just in case Apple decides to add such a method in a future version of the OS. In case you're always using the same date format s you could also add category methods..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring interface. i read in apple forum that The OS does not keep network statistics on a process by process basis. As such there's no exact solution to this problem. You can however get network statistics for each network interface. In general..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview been loaded into a UIWebView If not is there another way to pull raw HTML content from a web page in the iPhone SDK such as an equivalent of the .NET WebClient openRead Thanks in advance html iphone uiwebview share improve this question .. by grabbing the content from a currently loaded UIWebView using its stringByEvaluatingJavascriptFromString method as such NSString html yourWebView stringByEvaluatingJavaScriptFromString @ document.body.innerHTML This will grab the current..
App rejection clarification - HELP on what the actual issue is? http://stackoverflow.com/questions/12333252/app-rejection-clarification-help-on-what-the-actual-issue-is features such as Push Notifications the experience it provides is not significantly different from using Safari. Such apps do not include enough native iOS functionality to be appropriate for the App Store. We encourage you to review your..
iphone Core Data Unresolved error while saving http://stackoverflow.com/questions/1283960/iphone-core-data-unresolved-error-while-saving
CGAffineTransformInvert: singular matrix in UIImagePickerController with showsCameraControls = NO http://stackoverflow.com/questions/13708496/cgaffinetransforminvert-singular-matrix-in-uiimagepickercontroller-with-showsca a mathematical violation to perform operations on matrices with a determinant of zero similar to dividing by zero . Such a matrix is not invertible or 'singular' http en.wikipedia.org wiki Rotation_matrix http en.wikipedia.org wiki Determinant..
Get specific Value between Javascript Function by NSRegularExpression? http://stackoverflow.com/questions/15128700/get-specific-value-between-javascript-function-by-nsregularexpression content I need to parse HTML . I parse HTML using Hpple . And I could successfully parse HTML to get specific data Such as name address 圯tc but when I need to parse latitude and longitude from HTML content I am confused about how to get latitude..
Open-source frameworks/projects for iPhone platform http://stackoverflow.com/questions/1953550/open-source-frameworks-projects-for-iphone-platform of open source frameworks projects for the iPhone platform. I've found quite a few good frameworks and resources. Such as ASIHTTPRequest DrawKit and Cocos2D just to name a few. I'm just curious about the minor or unknown frameworks that have..
NSString initWithData returns null http://stackoverflow.com/questions/3485190/nsstring-initwithdata-returns-null as UTF 8 but you sometimes are trying to parse data that's actually encoded in ISO 8859 1 or Windows codepage 1252. Such data will generally be mostly ASCII but with some bytes outside the 0 27 range ASCII defines. UTF 8 would expect such bytes..
#if check (preprocessor macro) to differentiate between iPhone and iPad http://stackoverflow.com/questions/3697165/if-check-preprocessor-macro-to-differentiate-between-iphone-and-ipad greensopinion.blogspot.com 2010 04 from iphone to ipad creating universal.html Mostly using UI_USER_INTERFACE_IDIOM Such as #ifdef UI_USER_INTERFACE_IDIOM #define IS_IPAD UI_USER_INTERFACE_IDIOM UIUserInterfaceIdiomPad #else #define IS_IPAD..
How to close an application programmatically when the user taps on a button http://stackoverflow.com/questions/4021118/how-to-close-an-application-programmatically-when-the-user-taps-on-a-button
An -observeValueForKeyPath:ofObject:change:context: message was received but not handled http://stackoverflow.com/questions/4120539/an-observevalueforkeypathofobjectchangecontext-message-was-received-but-not objects are interested in knowing when a MeasurementPointer starts referencing a new different MeasurementDescriptor. Such a change might cause a graph display's axis to change for example. Or in the code above might cause a meter display to show..
http://stackoverflow.com/questions/459833/which-open-source-licenses-are-compatible-with-the-apples-iphone-and-its-offici the license restrictions of other proprietary libraries that do not normally accompany the operating system. Such a contradiction means you cannot use both them and the Library together in an executable that you distribute. The rights..
How to have a UISwipeGestureRecognizer AND UIPanGestureRecognizer work on the same view http://stackoverflow.com/questions/5111828/how-to-have-a-uiswipegesturerecognizer-and-uipangesturerecognizer-work-on-the-sa recognizers so that you could have a UISwipeGestureRecognizer and a UIPanGestureRecognizer work at the same time Such that if you touch and move quickly quick swipe it detects the gesture as a swipe but if you touch then move short delay..
Changing Background color on NSAttributedString http://stackoverflow.com/questions/5424003/changing-background-color-on-nsattributedstring thanks iphone ios nsattributedstring share improve this question I think you want NSBackgroundColorAttributeName. Such as attributedString addAttribute NSBackgroundColorAttributeName value UIColor yellowColor range selectedRange share improve..
How would you keep secret data secret in an iPhone application? http://stackoverflow.com/questions/544463/how-would-you-keep-secret-data-secret-in-an-iphone-application an enemy who wants that secret client key so as to do the service or client key owner harm by way of impersonation. Such a person might jailbreak their phone get access to the binary run 'strings' or a hex editor and poke around. Thus just storing..
What is the AppDelegate for and how do I know when to use it? http://stackoverflow.com/questions/652460/what-is-the-appdelegate-for-and-how-do-i-know-when-to-use-it up at the end You should avoid putting other functionality in the AppDelegate since they don't really belong there. Such other functionality includes Document data you should have a document manager singleton for multiple document applications..
http://stackoverflow.com/questions/6662730/nsnumber-vs-int instead this is typically when you reuse a NSNumber often this is to avoid making a ton of duplicate NSNumber s. Such occurrences are practical only rarely beyond serialization and generic objc interfaces bindings transformers dictionaries..
What are the advantages and disadvantages of using ARC? [closed] http://stackoverflow.com/questions/7888568/what-are-the-advantages-and-disadvantages-of-using-arc notably wrt implementations which may be duplicated by the compiler e.g. an inline function's body may be incorrect . Such mixed mode issues will be very difficult to isolate. ObjC programs and sources will be particularly difficult in this regard...
Coordinates all wrong on iPhone 3G? It could be your compiler http://stackoverflow.com/questions/8391307/coordinates-all-wrong-on-iphone-3g-it-could-be-your-compiler compiler which cause arithmetic on certain data structures in particular CGPoint to return completely wrong results. Such as the x value being written into the y value. The solution is to add the mno thumb compiler option to the XCode project...
Fade in/out UIScrollView's content like Mobile Safari does in its tab http://stackoverflow.com/questions/875129/fade-in-out-uiscrollviews-content-like-mobile-safari-does-in-its-tab in out seamlessly with offset. Currently I do all the dirty job in void scrollViewDidScroll UIScrollView scrollView . Such as getting the contentOffset from UIScrollView determine the pageingation calculate the delta between contentOffset and..
Objective-C String(yyyy-mm-dd) to NSDate http://stackoverflow.com/questions/8985872/objective-c-stringyyyy-mm-dd-to-nsdate C String yyyy mm dd to NSDate My App is a JSON code which involves a date in string type. Such as 2011 10 01 . I would like to know how I could conver it into NSDate It needs to be displayed in a different time format..
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