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2014/10/15 ¤U¤È 10:05:45
iphone Programming Glossary: createIs it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like app is installed on the phone and with Mobile Safari in case it is not. I read it is possible to create a unique protocol suffix for this and register it in the Info.plist but Mobile Safari will give an error..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints I do them globally because they are so useful in all my applications . The first..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices you can now apply the '4 Retina' size to your view controller in the storyboard. Now if I want to create an application that runs on both iPhone 4 and 5 of course I have to build every window twice but I also..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how for SimpleTableViewController a Storyboard ID of SimpleTableVC . In SimpleTableViewController.h create an NSArray property that will represent the data in the table. Also in SimpleTableViewController.h create.. an NSArray property that will represent the data in the table. Also in SimpleTableViewController.h create a protocol SimpleTableViewControllerDelegate with a required method itemSelectedatRow and a weak property.. self self presentViewController navigationController animated YES completion nil I create a simple example and posted it on github . Also see Showing actionsheet causes CGContext invalid context..
This class is not key value coding-compliant for the key http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key class is not key value coding compliant for the key I'm trying to link a UILabel with an IBOutlet created in my class. Every time I build my application it crashes on the label screen with the error this class.. the class of the File's Owner is SecondView . So what is wrong here One more thing every time I create a new application and try to link a UISomething to an IBOutlet I get the same error. Is there a global..
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 through all the pragmatic programmer Core Animation podcasts but I'm still no clearer on how to create this kind of transform on an iPhone. Any help pointers or example code snippets would be really appreciated..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone can help me or send.. That lets you feed the writer input data from a CVPixelBuffer that ™s quite easy to create from a CGImage. writerInput appendSampleBuffer sampleBuffer 4 Finish the session writerInput markAsFinished..
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 The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents using it to create a real time render of new zoom levels. CATiledLayer Method Theres a significant Overhead time drawing.. . 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..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create.. delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate.. you have an NSWindow. If you'd like to implement its delegate's windowDidMove method you could create a class like this @implementation MyClass void windowDidMove NSNotification notification ... @end Then..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the CFUUIDCreate function to create a UUID and.. To create a unique identifier specific to your app you can call the CFUUIDCreate function to create a UUID and write it to the defaults database using the NSUserDefaults class. However this value won't.. a user uninstalls and re installs the app. iphone ios ipad share improve this question A UUID created by CFUUIDCreate is unique if a user uninstalls and re installs the app you will get a new one each..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder recordSetting setValue NSNumber numberWithBool NO forKey AVLinearPCMIsFloatKey Create a new dated file NSDate now NSDate dateWithTimeIntervalSinceNow 0 NSString caldate now description recorderFilePath..
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 get those here 3 Add @class Reachability to the .h file of where you are implementing the code 4 Create a couple instances to check in the interface section of the .h file Reachability internetReachable Reachability..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how can reuse it between 5 or 6 different screens where I all users to select from a list of options. Create a new UITableViewController subclass SimpleTableViewController . Create a UITableViewController in your.. from a list of options. Create a new UITableViewController subclass SimpleTableViewController . Create a UITableViewController in your storyboard embedded in a navigation controller and set its custom class..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone self setByteCount bytesPerRow self.size.height self setPixelCount self.size.width self.size.height Create RGB color space self setColorSpace CGColorSpaceCreateDeviceRGB if colorSpace NSLog @ Error allocating.. self.size.width self.size.height Create RGB color space self setColorSpace CGColorSpaceCreateDeviceRGB if colorSpace NSLog @ Error allocating color space. return nil self setPixelData malloc byteCount.. Error allocating bitmap memory. Releasing color space. CGColorSpaceRelease colorSpace return nil Create the bitmap context. Pre multiplied RGBA 8 bits per component. The source image format will be converted..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH fi fi INSTALL INSTRUCTIONS Create a static lib project Select the Target In Build Settings tab set Build Active Architecture Only to NO.. include non sourcecode files in your project PNG PLIST XML etc Do everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create a new Target.. it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create a new Target in Xcode of type bundle In your MAIN PROJECT in Build Phases add the new bundle as something..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel UIFont regularFont UIFont systemFontOfSize fontSize UIColor foregroundColor UIColor whiteColor Create the attributes NSDictionary attrs NSDictionary dictionaryWithObjectsAndKeys boldFont NSFontAttributeName.. const NSRange range NSMakeRange 8 12 range of 2012 10 14 . Ideally this should not be hardcoded Create the attributed string text attributes NSMutableAttributedString attributedText NSMutableAttributedString.. void setRefreshDate NSDate aDate aDate retain refreshDate release refreshDate aDate if refreshDate Create the text for the text layer NSDateFormatter df NSDateFormatter alloc init df setDateFormat @ MM dd yyyy..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store method which I have personally tested using the AccelerometerGraph sample app on iPhone OS 3.0. Create Self Signed Certificate First you'll need to create a self signed certificate and patch your iPhone.. Access.app. With no items selected from the Keychain menu select Certificate Assistant then Create a Certificate. Name iPhone Developer Certificate Type Code Signing Let me override defaults Yes Click..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app section Devices . Click on the button Add Devices and add the devices previously collected. Step B Create a new provisioning profile Start the Mac OS utility program Keychain Access . In its main menu select.. . Close the Target Info pane. In the main window select the Active Configuration to Distribution . Create a new file from the file template Code Signing Entitlements . Name it Entitlements.plist . In this file..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone Code Example #import TFHpple.h NSData data NSData alloc initWithContentsOfFile @ example.html Create parser xpathParser TFHpple alloc initWithHTMLData data Get all the cells of the 2nd row of the 3rd table..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll here NSPredicate filterPredicate your predicate here Set up the fetched results controller. Create the fetch request for the entity. NSFetchRequest fetchRequest NSFetchRequest alloc init Edit the entity..
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like my domain e.g. http martijnthe.nl with my app whenever the app is installed on the phone and with Mobile Safari in case it is not. I read it is possible to create a unique protocol suffix for this and register it in the Info.plist but Mobile Safari will give an error in case the app is not installed. What would be a workaround..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw from the brad larson on this SO question If you add two breakpoints you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints I do them globally because they are so useful in all my applications . The first should be named objc_exception_throw and its location should..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices I've just upgraded to XCode 4.5 GM and found out that you can now apply the '4 Retina' size to your view controller in the storyboard. Now if I want to create an application that runs on both iPhone 4 and 5 of course I have to build every window twice but I also have to detect whether the user has an iPhone with 3.5 or..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how to SimpleTableViewController. Give the navigation controller for SimpleTableViewController a Storyboard ID of SimpleTableVC . In SimpleTableViewController.h create an NSArray property that will represent the data in the table. Also in SimpleTableViewController.h create a protocol SimpleTableViewControllerDelegate with a required.. ID of SimpleTableVC . In SimpleTableViewController.h create an NSArray property that will represent the data in the table. Also in SimpleTableViewController.h create a protocol SimpleTableViewControllerDelegate with a required method itemSelectedatRow and a weak property called delegate of type id SimpleTableViewControllerDelegate..
This class is not key value coding-compliant for the key http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key class is not key value coding compliant for the key I'm trying to link a UILabel with an IBOutlet created in my class. Every time I build my application it crashes on the label screen with the error this class is not key value coding compliant for the key XXXX . Here.. my SecondView.xib the UILabel is linked with the File's Owner. the class of the File's Owner is SecondView . So what is wrong here One more thing every time I create a new application and try to link a UISomething to an IBOutlet I get the same error. Is there a global parameter that can generate the error I've encountered Editor's..
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 this is possible I've investigated using CALayer and have run through all the pragmatic programmer Core Animation podcasts but I'm still no clearer on how to create this kind of transform on an iPhone. Any help pointers or example code snippets would be really appreciated iphone ios cocoa touch core animation share improve..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie do I export UIImage array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone can help me or send me a code snippet which does something like I want. Thx iphone.. ¦] 3 Write some samples Or you can use AVAssetWriterInputPixelBufferAdaptor. That lets you feed the writer input data from a CVPixelBuffer that ™s quite easy to create from a CGImage. writerInput appendSampleBuffer sampleBuffer 4 Finish the session writerInput markAsFinished videoWriter endSessionAtSourceTime ¦] videoWriter finishWriting..
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 a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents using it to create a real time render of new zoom levels. CATiledLayer Method Theres a significant Overhead time drawing a full PDF page to a CALayer individual tiles can be seen.. 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 improve this..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve.. do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another... to implement that protocol see below. For example suppose you have an NSWindow. If you'd like to implement its delegate's windowDidMove method you could create a class like this @implementation MyClass void windowDidMove NSNotification notification ... @end Then you could create an instance of MyClass and assign it as..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the CFUUIDCreate function to create a UUID and write it to the defaults database using the NSUserDefaults.. Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the CFUUIDCreate function to create a UUID and write it to the defaults database using the NSUserDefaults class. However this value won't be the same if a user uninstalls and re installs the app... class. However this value won't be the same if a user uninstalls and re installs the app. iphone ios ipad share improve this question A UUID created by CFUUIDCreate is unique if a user uninstalls and re installs the app you will get a new one each time. But you might want it to be not unique i. e. it should..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder setValue NSNumber numberWithBool NO forKey AVLinearPCMIsBigEndianKey recordSetting setValue NSNumber numberWithBool NO forKey AVLinearPCMIsFloatKey Create a new dated file NSDate now NSDate dateWithTimeIntervalSinceNow 0 NSString caldate now description recorderFilePath NSString stringWithFormat @ @ @.caf DOCUMENTS_FOLDER..
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 of Reachability.h and Reachability.m to the project you can get those here 3 Add @class Reachability to the .h file of where you are implementing the code 4 Create a couple instances to check in the interface section of the .h file Reachability internetReachable Reachability hostReachable 5 Add a method in the .h for when..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how I just implemented in a current project. It's nice because I can reuse it between 5 or 6 different screens where I all users to select from a list of options. Create a new UITableViewController subclass SimpleTableViewController . Create a UITableViewController in your storyboard embedded in a navigation controller and set its.. between 5 or 6 different screens where I all users to select from a list of options. Create a new UITableViewController subclass SimpleTableViewController . Create a UITableViewController in your storyboard embedded in a navigation controller and set its custom class to SimpleTableViewController. Give the navigation controller..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone blue and alpha. self setBytesPerRow self.size.width RGBA self setByteCount bytesPerRow self.size.height self setPixelCount self.size.width self.size.height Create RGB color space self setColorSpace CGColorSpaceCreateDeviceRGB if colorSpace NSLog @ Error allocating color space. return nil self setPixelData malloc byteCount.. RGBA self setByteCount bytesPerRow self.size.height self setPixelCount self.size.width self.size.height Create RGB color space self setColorSpace CGColorSpaceCreateDeviceRGB if colorSpace NSLog @ Error allocating color space. return nil self setPixelData malloc byteCount if pixelData NSLog @ Error allocating bitmap memory... nil self setPixelData malloc byteCount if pixelData NSLog @ Error allocating bitmap memory. Releasing color space. CGColorSpaceRelease colorSpace return nil Create the bitmap context. Pre multiplied RGBA 8 bits per component. The source image format will be converted to the format specified here by CGBitmapContextCreate. self..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 the double quotes cp r CURRENTCONFIG_DEVICE_DIR PUBLIC_HEADERS_FOLDER_PATH CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH fi fi INSTALL INSTRUCTIONS Create a static lib project Select the Target In Build Settings tab set Build Active Architecture Only to NO for all items In Build Phases tab select Add ... New Build.. ...that is the location of your Universal Build. How to include non sourcecode files in your project PNG PLIST XML etc Do everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create a new Target in Xcode of type bundle In your MAIN PROJECT in Build Phases.. in your project PNG PLIST XML etc Do everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create a new Target in Xcode of type bundle In your MAIN PROJECT in Build Phases add the new bundle as something it depends on top section hit the plus button scroll to..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel 13 UIFont boldFont UIFont boldSystemFontOfSize fontSize UIFont regularFont UIFont systemFontOfSize fontSize UIColor foregroundColor UIColor whiteColor Create the attributes NSDictionary attrs NSDictionary dictionaryWithObjectsAndKeys boldFont NSFontAttributeName foregroundColor NSForegroundColorAttributeName nil.. regularFont NSFontAttributeName nil const NSRange range NSMakeRange 8 12 range of 2012 10 14 . Ideally this should not be hardcoded Create the attributed string text attributes NSMutableAttributedString attributedText NSMutableAttributedString alloc initWithString text attributes attrs attributedText.. of the navigation controller. la Mail.app in the iPhone. void setRefreshDate NSDate aDate aDate retain refreshDate release refreshDate aDate if refreshDate Create the text for the text layer NSDateFormatter df NSDateFormatter alloc init df setDateFormat @ MM dd yyyy hh mm NSString dateString df stringFromDate refreshDate..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store iPhone For jailbroken iPhones you can use the following method which I have personally tested using the AccelerometerGraph sample app on iPhone OS 3.0. Create Self Signed Certificate First you'll need to create a self signed certificate and patch your iPhone SDK to allow the use of this certificate Launch Keychain Access.app... iPhone SDK to allow the use of this certificate Launch Keychain Access.app. With no items selected from the Keychain menu select Certificate Assistant then Create a Certificate. Name iPhone Developer Certificate Type Code Signing Let me override defaults Yes Click Continue Validity 3650 days Click Continue Blank out the Email..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app your testers. Go to the Provisioning Portal . Go to the section Devices . Click on the button Add Devices and add the devices previously collected. Step B Create a new provisioning profile Start the Mac OS utility program Keychain Access . In its main menu select Keychain Access Certificate Assistant Request a Certificate.. Identity Any iPhone OS Device to iPhone Distribution . Close the Target Info pane. In the main window select the Active Configuration to Distribution . Create a new file from the file template Code Signing Entitlements . Name it Entitlements.plist . In this file uncheck the checkbox get task allow . Bring up the Target..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone XPath Tutorial to feel comfortable with the XPath language. Code Example #import TFHpple.h NSData data NSData alloc initWithContentsOfFile @ example.html Create parser xpathParser TFHpple alloc initWithHTMLData data Get all the cells of the 2nd row of the 3rd table NSArray elements xpathParser searchWithXPathQuery @ table..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll searchString NSArray sortDescriptors your sort descriptors here NSPredicate filterPredicate your predicate here Set up the fetched results controller. Create the fetch request for the entity. NSFetchRequest fetchRequest NSFetchRequest alloc init Edit the entity name as appropriate. NSEntityDescription callEntity MTCall..
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like my app whenever the app is installed on the phone and with Mobile Safari in case it is not. I read it is possible to create a unique protocol suffix for this and register it in the Info.plist but Mobile Safari will give an error in case the app..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw If you add two breakpoints you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints I do them globally because they are so useful in all my applications . The first should be named..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices and found out that you can now apply the '4 Retina' size to your view controller in the storyboard. Now if I want to create an application that runs on both iPhone 4 and 5 of course I have to build every window twice but I also have to detect whether..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how navigation controller for SimpleTableViewController a Storyboard ID of SimpleTableVC . In SimpleTableViewController.h create an NSArray property that will represent the data in the table. Also in SimpleTableViewController.h create a protocol SimpleTableViewControllerDelegate.. create an NSArray property that will represent the data in the table. Also in SimpleTableViewController.h create a protocol SimpleTableViewControllerDelegate with a required method itemSelectedatRow and a weak property called delegate.. States tableViewController.delegate self self presentViewController navigationController animated YES completion nil I create a simple example and posted it on github . Also see Showing actionsheet causes CGContext invalid context errors . share..
This class is not key value coding-compliant for the key http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key class is not key value coding compliant for the key I'm trying to link a UILabel with an IBOutlet created in my class. Every time I build my application it crashes on the label screen with the error this class is not key value.. with the File's Owner. the class of the File's Owner is SecondView . So what is wrong here One more thing every time I create a new application and try to link a UISomething to an IBOutlet I get the same error. Is there a global parameter that can..
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 CALayer and have run through all the pragmatic programmer Core Animation podcasts but I'm still no clearer on how to create this kind of transform on an iPhone. Any help pointers or example code snippets would be really appreciated iphone ios..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone can help me or send me a code snippet which.. That lets you feed the writer input data from a CVPixelBuffer that ™s quite easy to create from a CGImage. writerInput appendSampleBuffer sampleBuffer 4 Finish the session writerInput markAsFinished videoWriter..
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 as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents using it to create a real time render of new zoom levels. CATiledLayer Method Theres a significant Overhead time drawing a full PDF page to.. 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 do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios.. do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that.. For example suppose you have an NSWindow. If you'd like to implement its delegate's windowDidMove method you could create a class like this @implementation MyClass void windowDidMove NSNotification notification ... @end Then you could create..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier property. To create a unique identifier specific to your app you can call the CFUUIDCreate function to create a UUID and write it to the defaults.. property. To create a unique identifier specific to your app you can call the CFUUIDCreate function to create a UUID and write it to the defaults database using the NSUserDefaults class. However this value won't be the same if a user.. be the same if a user uninstalls and re installs the app. iphone ios ipad share improve this question A UUID created by CFUUIDCreate is unique if a user uninstalls and re installs the app you will get a new one each time. But you might..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder NO forKey AVLinearPCMIsBigEndianKey recordSetting setValue NSNumber numberWithBool NO forKey AVLinearPCMIsFloatKey Create a new dated file NSDate now NSDate dateWithTimeIntervalSinceNow 0 NSString caldate now description recorderFilePath NSString..
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 the project you can get those here 3 Add @class Reachability to the .h file of where you are implementing the code 4 Create a couple instances to check in the interface section of the .h file Reachability internetReachable Reachability hostReachable..
Add UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how It's nice because I can reuse it between 5 or 6 different screens where I all users to select from a list of options. Create a new UITableViewController subclass SimpleTableViewController . Create a UITableViewController in your storyboard embedded.. I all users to select from a list of options. Create a new UITableViewController subclass SimpleTableViewController . Create a UITableViewController in your storyboard embedded in a navigation controller and set its custom class to SimpleTableViewController...
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone RGBA self setByteCount bytesPerRow self.size.height self setPixelCount self.size.width self.size.height Create RGB color space self setColorSpace CGColorSpaceCreateDeviceRGB if colorSpace NSLog @ Error allocating color space. return.. self setPixelCount self.size.width self.size.height Create RGB color space self setColorSpace CGColorSpaceCreateDeviceRGB if colorSpace NSLog @ Error allocating color space. return nil self setPixelData malloc byteCount if pixelData.. pixelData NSLog @ Error allocating bitmap memory. Releasing color space. CGColorSpaceRelease colorSpace return nil Create the bitmap context. Pre multiplied RGBA 8 bits per component. The source image format will be converted to the format specified..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 PUBLIC_HEADERS_FOLDER_PATH CREATING_UNIVERSAL_DIR PUBLIC_HEADERS_FOLDER_PATH fi fi INSTALL INSTRUCTIONS Create a static lib project Select the Target In Build Settings tab set Build Active Architecture Only to NO for all items In Build.. Build. How to include non sourcecode files in your project PNG PLIST XML etc Do everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create a new Target in Xcode of type bundle.. everything above check it works Create a new Run Script phase that comes AFTER THE FIRST ONE copy paste the code below Create a new Target in Xcode of type bundle In your MAIN PROJECT in Build Phases add the new bundle as something it depends on..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel fontSize UIFont regularFont UIFont systemFontOfSize fontSize UIColor foregroundColor UIColor whiteColor Create the attributes NSDictionary attrs NSDictionary dictionaryWithObjectsAndKeys boldFont NSFontAttributeName foregroundColor.. nil const NSRange range NSMakeRange 8 12 range of 2012 10 14 . Ideally this should not be hardcoded Create the attributed string text attributes NSMutableAttributedString attributedText NSMutableAttributedString alloc initWithString.. in the iPhone. void setRefreshDate NSDate aDate aDate retain refreshDate release refreshDate aDate if refreshDate Create the text for the text layer NSDateFormatter df NSDateFormatter alloc init df setDateFormat @ MM dd yyyy hh mm NSString dateString..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store can use the following method which I have personally tested using the AccelerometerGraph sample app on iPhone OS 3.0. Create Self Signed Certificate First you'll need to create a self signed certificate and patch your iPhone SDK to allow the use.. Launch Keychain Access.app. With no items selected from the Keychain menu select Certificate Assistant then Create a Certificate. Name iPhone Developer Certificate Type Code Signing Let me override defaults Yes Click Continue Validity..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app Portal . Go to the section Devices . Click on the button Add Devices and add the devices previously collected. Step B Create a new provisioning profile Start the Mac OS utility program Keychain Access . In its main menu select Keychain Access Certificate.. iPhone Distribution . Close the Target Info pane. In the main window select the Active Configuration to Distribution . Create a new file from the file template Code Signing Entitlements . Name it Entitlements.plist . In this file uncheck the checkbox..
parsing HTML on the iPhone [closed] http://stackoverflow.com/questions/405749/parsing-html-on-the-iphone with the XPath language. Code Example #import TFHpple.h NSData data NSData alloc initWithContentsOfFile @ example.html Create parser xpathParser TFHpple alloc initWithHTMLData data Get all the cells of the 2nd row of the 3rd table NSArray elements..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll your sort descriptors here NSPredicate filterPredicate your predicate here Set up the fetched results controller. Create the fetch request for the entity. NSFetchRequest fetchRequest NSFetchRequest alloc init Edit the entity name as appropriate...
Creating an SQLite3 database file through Objective-C http://stackoverflow.com/questions/10540728/creating-an-sqlite3-database-file-through-objective-c database SQLITE_OK NSLog @ Opened sqlite database at @ databasePath char err NSString sql NSString stringWithFormat @ CREATE TABLE IF NOT EXISTS ' @' ' @' TEXT PRIMARY KEY ' @' TEXT tableName dbStrStore dbStrReg if sqlite3_exec database sql UTF8String..
How to NSLog pixel RGB from a UIImage? http://stackoverflow.com/questions/1352989/how-to-nslog-pixel-rgb-from-a-uiimage data i NSLog @ Red 255 Value is u data i 1 NSLog @ Green 255 Value is u data i 2 NSLog @ Blue 255 Value is u data i 3 CREATE NEW UIIMAGE newImage HERE return newImage iphone uikit bitmap uiimage pixel share improve this question Did this direction..
Encoding problem in sqlite and objective-c http://stackoverflow.com/questions/1668774/encoding-problem-in-sqlite-and-objective-c about iPhone but you want to specify the encoding here using stringWithContentsOfFile encoding error file contains CREATE TABLE myvalues foo TEXT bar TEXT baz TEXT INSERT INTO myvalues VALUES NULL '° F' 'Degrees Fahrenheit' test.m contains no.. version 3.6.12 Enter .help for instructions Enter SQL statements terminated with a sqlite .dump BEGIN TRANSACTION CREATE TABLE myvalues foo TEXT bar TEXT baz TEXT INSERT INTO myvalues VALUES NULL '° F' 'Degrees Fahrenheit' COMMIT share improve..
Add an SQLite database to an iPhone app http://stackoverflow.com/questions/487339/add-an-sqlite-database-to-an-iphone-app your database. From the command line create your db file. sqlite3 mydb.db Then create the tables within your database CREATE TABLE tags id int 5 name varchar 255 created_at datetime updated_at datetime Repeat that for any tables that you want in..
how to create table in sqlite data base programmatically http://stackoverflow.com/questions/5440619/how-to-create-table-in-sqlite-data-base-programmatically createtable NSString tableName BOOL ret int rc SQL to create new table NSString sql_str NSString stringWithFormat @ CREATE TABLE @ pk INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL ItemName VARCHAR 100 Quantity INTEGER DEFAULT 0 Status BOOLEAN Type..
iOS app crash on locale change http://stackoverflow.com/questions/6169267/ios-app-crash-on-locale-change 1767 Warning Initializing MusicLibrary... May 29 12 09 33 unknown itdbprepserver 1767 Warning STARTING DB Backup CREATE NEW May 29 12 09 33 unknown itdbprepserver 1767 Warning FINISHED DB Backup CREATE NEW time 0.13s May 29 12 09 33 unknown.. 1767 Warning STARTING DB Backup CREATE NEW May 29 12 09 33 unknown itdbprepserver 1767 Warning FINISHED DB Backup CREATE NEW time 0.13s May 29 12 09 33 unknown itdbprepserver 1767 Warning END ITDBPostProcessController. iphone ipad localization..
SQLlite3 Update statment has no effect http://stackoverflow.com/questions/6622582/sqllite3-update-statment-has-no-effect then in your implementation open the database and execute the DML statements again to compare the DML results CREATE TABLE TEST id INT PRIMARY KEY name text NOTE INT not INTEGER INSERT INTO TEST id name VALUES 7 'seven' N.B. THE ROWID OF..
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