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2014/10/15 ¤U¤È 10:13:15
iphone Programming Glossary: releaseHow can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone Uploader dealloc Destructor. Results None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector.. Results None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc .. None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc Uploader filePath Gets the path..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports symbolicate share improve this question Steps to analyze crash report from apple Copy the release .app file which was pushed to the appstore the .dSYM file that was created at the time of release and.. release .app file which was pushed to the appstore the .dSYM file that was created at the time of release and the crash report receive from APPLE into a FOLDER. OPEN terminal application and go to the folder.. .dSYM file. Note This can only work if the app binary does not have symbols stripped. By default release builds stripped the symbols. We can change it in project build settings Strip Debug Symbols During Copy..
Detecting which UIButton was pressed in a UITableView http://stackoverflow.com/questions/1802707/detecting-which-uibutton-was-pressed-in-a-uitableview UIControlEventTouchUpInside button setTag 1 cell.contentView addSubview button button release UIButton button UIButton cell viewWithTag 1 button setTitle @ Edit forState UIControlStateNormal return.. forControlEvents UIControlEventTouchUpInside cell.contentView addSubview button button release UIButton button UIButton cell.contentView.subviews objectAtIndex 0 button setTag indexPath.row button..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation detect older iPhone OS versions and only apply the setOrientation when it is prior to the latest release. It is not clear if Apple's static analysis will understand that you are working around the older SDK..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application there. isHTML NO if controller self presentModalViewController controller animated YES controller release Then the user does the work and you get the delegate callback in time void mailComposeController MFMailComposeViewController..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received static 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.. 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 the future by other code so it is vital that.. e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in the future by other code so it is vital that if you need to keep it around beyond 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 unused views Close any open Contexts as soon as you don't need them on receiving memory warnings release and reload the DocRef and any page Caches Other PDF Features Getting Links inside a PDF and here and.. with a UIImage but instead draw the image in the layer when zooming is 1. Those tiles will be released automatically when memory warnings are issued. Whenever the user start zooming I acquire the CGPDFPage.. the CGPDFDocumentRef . I synchronize the part where I access the pdfDoc property because I release it and recreate it when receiving memoryWarnings. It seems that the CGPDFDocumentRef object do some..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone objectAtIndex 0 Get the text within the cell tag NSString content element content xpathParser release data release Known issues As hpple is a wrapper over XPathQuery which is another wrapper this option.. 0 Get the text within the cell tag NSString content element content xpathParser release data release Known issues As hpple is a wrapper over XPathQuery which is another wrapper this option probably is..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape allowLossyConversion YES NSXMLParser xmlParse NSXMLParser alloc initWithData data autorelease xmlParse setDelegate self xmlParse parse return NSString stringWithFormat @ @ resultString void dealloc..
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 init fmt setDateFormat @ yyyyMMddHHmmss NSString dateStr fmt stringFromDate someDate fmt release Then it works fine in the US and most locales UNTIL ... someone with their phone set to a 24 hour region.. 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.. date4 fmt dateFromString @ 2001 05 05 12 34 56 PM NSLog @ date4 @ date4.description fmt release fmt BNSDateFormatter alloc init fmt setDateFormat @ yyyy MM dd HH mm ss dateString fmt stringFromDate..
Is there a barcode recognition framework for iOS? http://stackoverflow.com/questions/838724/is-there-a-barcode-recognition-framework-for-ios client and the partial C port of the core library . The port is a little old from circa the 0.9 release of the Java code but should still work reasonably well. If you need to scan other formats like 1D formats..
Autorotate in iOS 6 has strange behaviour http://stackoverflow.com/questions/12526054/autorotate-in-ios-6-has-strange-behaviour c ios mpmovieplayercontroller ios6 share improve this question From Apple's iOS 6 SDK Release Notes Autorotation is changing in iOS 6. In iOS 6 the shouldAutorotateToInterfaceOrientation method..
Do I need to disable NSLog before release Application? http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application 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 .....
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 throughout my code and that 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..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store Apple's installation system Project Set Active SDK Device and Set Active Build Configuration Release. Compile your project normally using Build not Build Go . In the build Release iphoneos directory you.. Build Configuration Release. Compile your project normally using Build not Build Go . In the build Release iphoneos directory you will have an app bundle. Use your preferred method to transfer this to Applications..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app select the topmost item and press Cmd I . Go to the tab Configuration . Select the configuration Release . Click the button Duplicate and name it Distribution . Close the Project Info pane. Open the Target..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer setFill CGContextSaveGState context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps.. context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set the.. context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set the fill color you want..
Embedding YouTube videos on iOS http://stackoverflow.com/questions/5117617/embedding-youtube-videos-on-ios html baseURL nil self.view addSubview videoView videoView release void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images.. Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in use. void viewDidUnload Release any retained subviews of the.. didReceiveMemoryWarning Release any cached data images etc that aren't in use. void viewDidUnload Release any retained subviews of the main view. e.g. self.myOutlet nil void dealloc super dealloc @end It compiles..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain 5 Best Practice Release retain As a beginning iPhone programmer what is the best practice for writing apps to be used either..
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 types void int etc Retain object value then release when it is no longer used standard assumption Release new object values when no longer used methods in the init copy family or attributed with ns_returns_retained..
Objective-C ARC: strong vs retain and weak vs assign http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign properties automatic ref counting share improve this question From the Transitioning to ARC Release Notes the example in the section on property attributes . The following declaration is a synonym for..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone errorSelector anErrorSelector self upload return self Uploader dealloc Destructor. Results None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc Uploader filePath Gets the path.. self upload return self Uploader dealloc Destructor. Results None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc Uploader filePath Gets the path of the file this object is.. Uploader dealloc Destructor. Results None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc Uploader filePath Gets the path of the file this object is uploading. Results Path to the..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports help would be greatly appreciated thanks. iphone crash reports symbolicate share improve this question Steps to analyze crash report from apple Copy the release .app file which was pushed to the appstore the .dSYM file that was created at the time of release and the crash report receive from APPLE into a FOLDER. OPEN terminal.. question Steps to analyze crash report from apple Copy the release .app file which was pushed to the appstore the .dSYM file that was created at the time of release and the crash report receive from APPLE into a FOLDER. OPEN terminal application and go to the folder created above using CD command atos arch armv7 o YOURAPP.app..
Detecting which UIButton was pressed in a UITableView http://stackoverflow.com/questions/1802707/detecting-which-uibutton-was-pressed-in-a-uitableview addTarget self action @selector buttonPressedAction forControlEvents UIControlEventTouchUpInside button setTag 1 cell.contentView addSubview button button release UIButton button UIButton cell viewWithTag 1 button setTitle @ Edit forState UIControlStateNormal return cell My question is this in the buttonPressedAction method.. 10 5 40 20 button addTarget self action @selector buttonPressedAction forControlEvents UIControlEventTouchUpInside cell.contentView addSubview button button release UIButton button UIButton cell.contentView.subviews objectAtIndex 0 button setTag indexPath.row button setTitle @ Edit forState UIControlStateNormal return cell..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation back onto the stack. That likely means that you would need to detect older iPhone OS versions and only apply the setOrientation when it is prior to the latest release. It is not clear if Apple's static analysis will understand that you are working around the older SDK limitations. I personally have been told by Apple to remove..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application setSubject @ My Subject controller setMessageBody @ Hello there. isHTML NO if controller self presentModalViewController controller animated YES controller release Then the user does the work and you get the delegate callback in time void mailComposeController MFMailComposeViewController controller didFinishWithResult MFMailComposeResult..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received anything you get from an allocation function usually the static 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.. 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 the future by other code so it is vital that if you need to keep it around beyond the immediate function.. 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 the future by other code so it is vital that if you need to keep it around beyond the immediate function that you retain it. If you don't the memory..
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 though Recycle page objects by doing pointer swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving memory warnings release and reload the DocRef and any page Caches Other PDF Features Getting Links inside a PDF and here and here Understanding the PDF Rect for link positioning Converting.. to three images in advance in a separate thread. I don't overlay with a UIImage but instead draw the image in the layer when zooming is 1. Those tiles will be released automatically when memory warnings are issued. Whenever the user start zooming I acquire the CGPDFPage and render it using the appropriate CTM. The code in void.. CGContextDrawPDFPage context pdfPage issue is the object containg the CGPDFDocumentRef . I synchronize the part where I access the pdfDoc property because I release it and recreate it when receiving memoryWarnings. It seems that the CGPDFDocumentRef object do some internal caching that I did not find how to get rid of. share..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone 3 tr 2 td Access the first cell TFHppleElement element elements objectAtIndex 0 Get the text within the cell tag NSString content element content xpathParser release data release Known issues As hpple is a wrapper over XPathQuery which is another wrapper this option probably is not the most efficient. If performance is an issue.. the first cell TFHppleElement element elements objectAtIndex 0 Get the text within the cell tag NSString content element content xpathParser release data release Known issues As hpple is a wrapper over XPathQuery which is another wrapper this option probably is not the most efficient. If performance is an issue in your project..
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape @ d @ d s NSData data xmlStr dataUsingEncoding NSUTF8StringEncoding allowLossyConversion YES NSXMLParser xmlParse NSXMLParser alloc initWithData data autorelease xmlParse setDelegate self xmlParse parse return NSString stringWithFormat @ @ resultString void dealloc resultString release super dealloc @end share improve..
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 format operation such as NSDateFormatter fmt NSDateFormatter alloc init fmt setDateFormat @ yyyyMMddHHmmss NSString dateStr fmt stringFromDate someDate fmt release Then it works fine in the US and most locales UNTIL ... someone with their phone set to a 24 hour region sets the 12 24 hour switch in settings to 12. Then the.. formatter for a specific region generally the US but this 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.. @ 2001 05 05 12 34 56PM NSLog @ date3 @ date3.description date4 fmt dateFromString @ 2001 05 05 12 34 56 PM NSLog @ date4 @ date4.description fmt release fmt BNSDateFormatter alloc init fmt setDateFormat @ yyyy MM dd HH mm ss dateString fmt stringFromDate NSDate date NSLog @ dateString @ dateString date1 fmt dateFromString..
Is there a barcode recognition framework for iOS? http://stackoverflow.com/questions/838724/is-there-a-barcode-recognition-framework-for-ios project specifically you want to take a look at the iPhone client and the partial C port of the core library . The port is a little old from circa the 0.9 release of the Java code but should still work reasonably well. If you need to scan other formats like 1D formats you could continue the port of the Java code within this..
Autorotate in iOS 6 has strange behaviour http://stackoverflow.com/questions/12526054/autorotate-in-ios-6-has-strange-behaviour If I set other whole app will be rotated. iphone objective c ios mpmovieplayercontroller ios6 share improve this question From Apple's iOS 6 SDK Release Notes Autorotation is changing in iOS 6. In iOS 6 the shouldAutorotateToInterfaceOrientation method of UIViewController is deprecated. In its place you should use..
Do I need to disable NSLog before release Application? http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application the Debug configuration add 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__..
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 I was expecting to be able to sprinkle NSLog function calls throughout my code and that 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..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store install your application on the phone as a system app bypassing Apple's installation system Project Set Active SDK Device and Set Active Build Configuration Release. Compile your project normally using Build not Build Go . In the build Release iphoneos directory you will have an app bundle. Use your preferred method to transfer.. system Project Set Active SDK Device and Set Active Build Configuration Release. Compile your project normally using Build not Build Go . In the build Release iphoneos directory you will have an app bundle. Use your preferred method to transfer this to Applications on the device. scp r AccelerometerGraph.app root@jasoniphone..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app project in Xcode. Open the Project Info pane In Groups Files select the topmost item and press Cmd I . Go to the tab Configuration . Select the configuration Release . Click the button Duplicate and name it Distribution . Close the Project Info pane. Open the Target Info pane In Groups Files expand Targets select your target..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer CGColor Now fill the rectangle so the shadow gets drawn aColor setFill CGContextSaveGState context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set the fill color you want add this path to.. so the shadow gets drawn aColor setFill CGContextSaveGState context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set the fill color you want add this path to the context and fill the.. gets drawn aColor setFill CGContextSaveGState context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set the fill color you want add this path to the context and fill the context Now create..
Embedding YouTube videos on iOS http://stackoverflow.com/questions/5117617/embedding-youtube-videos-on-ios UIWebView alloc initWithFrame frame videoView loadHTMLString html baseURL nil self.view addSubview videoView videoView release void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in use. void viewDidUnload Release any retained.. self.view addSubview videoView videoView release void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in use. void viewDidUnload Release any retained subviews of the main view. e.g. self.myOutlet nil void dealloc super dealloc.. Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in use. void viewDidUnload Release any retained subviews of the main view. e.g. self.myOutlet nil void dealloc super dealloc @end It compiles correctly and when I open it I see a white box positioned..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain 5 Best Practice Release retain As a beginning iPhone programmer what is the best practice for writing apps to be used either with iOS 5 or older versions Specifically should I continue..
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 ARC would consider for the return value 3 Ignore non object types void int etc Retain object value then release when it is no longer used standard assumption Release new object values when no longer used methods in the init copy family or attributed with ns_returns_retained Do nothing assume returned object value will be valid..
Objective-C ARC: strong vs retain and weak vs assign http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign or are the kind of being deprecated iphone objective c ios5 properties automatic ref counting share improve this question From the Transitioning to ARC Release Notes the example in the section on property attributes . The following declaration is a synonym for @property retain MyClass myObject @property strong MyClass..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone self upload return self Uploader dealloc Destructor. Results None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc.. dealloc Destructor. Results None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc Uploader filePath Gets.. None Side effects None void dealloc serverURL release serverURL nil filePath release filePath nil delegate release delegate nil doneSelector NULL errorSelector NULL super dealloc Uploader filePath Gets the path of the file this..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports iphone crash reports symbolicate share improve this question Steps to analyze crash report from apple Copy the release .app file which was pushed to the appstore the .dSYM file that was created at the time of release and the crash report receive.. from apple Copy the release .app file which was pushed to the appstore the .dSYM file that was created at the time of release and the crash report receive from APPLE into a FOLDER. OPEN terminal application and go to the folder created above using.. case we don't need .dSYM file. Note This can only work if the app binary does not have symbols stripped. By default release builds stripped the symbols. We can change it in project build settings Strip Debug Symbols During Copy to NO. share improve..
Detecting which UIButton was pressed in a UITableView http://stackoverflow.com/questions/1802707/detecting-which-uibutton-was-pressed-in-a-uitableview forControlEvents UIControlEventTouchUpInside button setTag 1 cell.contentView addSubview button button release UIButton button UIButton cell viewWithTag 1 button setTitle @ Edit forState UIControlStateNormal return cell My question.. @selector buttonPressedAction forControlEvents UIControlEventTouchUpInside cell.contentView addSubview button button release UIButton button UIButton cell.contentView.subviews objectAtIndex 0 button setTag indexPath.row button setTitle @ Edit forState..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation you would need to detect older iPhone OS versions and only apply the setOrientation when it is prior to the latest release. It is not clear if Apple's static analysis will understand that you are working around the older SDK limitations. I personally..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application @ Hello there. isHTML NO if controller self presentModalViewController controller animated YES controller release Then the user does the work and you get the delegate callback in time void mailComposeController MFMailComposeViewController..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received function usually the static 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.. 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 the future by other code so it is vital that if you need to keep.. factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in the future by other code so it is vital that if you need to keep it around beyond the immediate function..
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 swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving memory warnings release and reload the DocRef and any page Caches Other PDF Features Getting Links inside a PDF and here and here Understanding.. thread. I don't overlay with a UIImage but instead draw the image in the layer when zooming is 1. Those tiles will be released automatically when memory warnings are issued. Whenever the user start zooming I acquire the CGPDFPage and render it using.. is the object containg the CGPDFDocumentRef . I synchronize the part where I access the pdfDoc property because I release it and recreate it when receiving memoryWarnings. It seems that the CGPDFDocumentRef object do some internal caching that..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone element elements objectAtIndex 0 Get the text within the cell tag NSString content element content xpathParser release data release Known issues As hpple is a wrapper over XPathQuery which is another wrapper this option probably is not the.. elements objectAtIndex 0 Get the text within the cell tag NSString content element content xpathParser release data release Known issues As hpple is a wrapper over XPathQuery which is another wrapper this option probably is not the most efficient...
Objective C HTML escape/unescape http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape NSUTF8StringEncoding allowLossyConversion YES NSXMLParser xmlParse NSXMLParser alloc initWithData data autorelease xmlParse setDelegate self xmlParse parse return NSString stringWithFormat @ @ resultString void dealloc resultString release..
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 fmt NSDateFormatter alloc init fmt setDateFormat @ yyyyMMddHHmmss NSString dateStr fmt stringFromDate someDate fmt release Then it works fine in the US and most locales UNTIL ... someone with their phone set to a 24 hour region sets the 12 24.. the US but this 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.. @ date3 @ date3.description date4 fmt dateFromString @ 2001 05 05 12 34 56 PM NSLog @ date4 @ date4.description fmt release fmt BNSDateFormatter alloc init fmt setDateFormat @ yyyy MM dd HH mm ss dateString fmt stringFromDate NSDate date NSLog..
Is there a barcode recognition framework for iOS? http://stackoverflow.com/questions/838724/is-there-a-barcode-recognition-framework-for-ios a look at the iPhone client and the partial C port of the core library . The port is a little old from circa the 0.9 release of the Java code but should still work reasonably well. If you need to scan other formats like 1D formats you could continue..
Iphone - How to encrypt NSData with public key and decrypt with private key? http://stackoverflow.com/questions/10072124/iphone-how-to-encrypt-nsdata-with-public-key-and-decrypt-with-private-key else publicKeyReference publicKey return publicKeyReference void didReceiveMemoryWarning super didReceiveMemoryWarning Release any cached data images etc that aren't in use. void testAsymmetricEncryptionAndDecryption uint8_t plainBuffer uint8_t cipherBuffer.. Do any additional setup after loading the view typically from a nib. void viewDidUnload super viewDidUnload Release any retained subviews of the main view. e.g. self.myOutlet nil void viewWillAppear BOOL animated super viewWillAppear animated..
Autorotate in iOS 6 has strange behaviour http://stackoverflow.com/questions/12526054/autorotate-in-ios-6-has-strange-behaviour rotated. iphone objective c ios mpmovieplayercontroller ios6 share improve this question From Apple's iOS 6 SDK Release Notes Autorotation is changing in iOS 6. In iOS 6 the shouldAutorotateToInterfaceOrientation method of UIViewController..
Do I need to disable NSLog before release Application? http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application 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..
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 NSLog function calls throughout my code and that 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..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store as a system app bypassing Apple's installation system Project Set Active SDK Device and Set Active Build Configuration Release. Compile your project normally using Build not Build Go . In the build Release iphoneos directory you will have an app bundle... and Set Active Build Configuration Release. Compile your project normally using Build not Build Go . In the build Release iphoneos directory you will have an app bundle. Use your preferred method to transfer this to Applications on the device...
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app pane In Groups Files select the topmost item and press Cmd I . Go to the tab Configuration . Select the configuration Release . Click the button Duplicate and name it Distribution . Close the Project Info pane. Open the Target Info pane In Groups..
Inner shadow effect on UIView layer? http://stackoverflow.com/questions/4431292/inner-shadow-effect-on-uiview-layer shadow gets drawn aColor setFill CGContextSaveGState context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set.. setFill CGContextSaveGState context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set the fill color you want.. context CGContextAddPath context path CGContextEOFillPath context Release the paths CGPathRelease path CGPathRelease visiblePath So essentially there are the following steps Create your path Set the fill color you want add this path to the..
iPhone Codesign object file format invalid or unsuitable http://stackoverflow.com/questions/4842717/iphone-codesign-object-file-format-invalid-or-unsuitable codesigning identity but now i can't compile for the device anymore. as soon as i want to build i get CodeSign build Release iphoneos myApp.app ....somestuff.... Volumes XCodeProj myApp build Release iphoneos myApp.app object file format invalid.. as i want to build i get CodeSign build Release iphoneos myApp.app ....somestuff.... Volumes XCodeProj myApp build Release iphoneos myApp.app object file format invalid or unsuitable Connad usr bin codesign failed with exit code 1 I already tried..
Embedding YouTube videos on iOS http://stackoverflow.com/questions/5117617/embedding-youtube-videos-on-ios loadHTMLString html baseURL nil self.view addSubview videoView videoView release void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in.. release void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in use. void viewDidUnload Release any retained subviews of the main view. e.g. self.myOutlet.. a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in use. void viewDidUnload Release any retained subviews of the main view. e.g. self.myOutlet nil void dealloc super dealloc @end It compiles correctly and..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain 5 Best Practice Release retain As a beginning iPhone programmer what is the best practice for writing apps to be used either with iOS 5 or older..
http://stackoverflow.com/questions/6851660/version-vs-build-in-xcode-4 I have a script that automatically increases the build number every time I build. See instructions for that below. Release 1.0.0 might be build 542. It took 542 builds to get to a 1.0.0 release. Release 1.0.1 might be build 578. Release 1.1.0.. See instructions for that below. Release 1.0.0 might be build 542. It took 542 builds to get to a 1.0.0 release. Release 1.0.1 might be build 578. Release 1.1.0 might be build 694. Release 2.0.0 might be build 949. Other developers including.. Release 1.0.0 might be build 542. It took 542 builds to get to a 1.0.0 release. Release 1.0.1 might be build 578. Release 1.1.0 might be build 694. Release 2.0.0 might be build 949. Other developers including Apple have a Build number comprised..
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 3 Ignore non object types void int etc Retain object value then release when it is no longer used standard assumption Release new object values when no longer used methods in the init copy family or attributed with ns_returns_retained Do nothing..
Objective-C ARC: strong vs retain and weak vs assign http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign objective c ios5 properties automatic ref counting share improve this question From the Transitioning to ARC Release Notes the example in the section on property attributes . The following declaration is a synonym for @property retain MyClass..
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