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2014/10/15 ¤U¤È 10:12:20
iphone Programming Glossary: okHow do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder initWithTitle @ Warning message err localizedDescription delegate nil cancelButtonTitle @ OK otherButtonTitles nil alert show alert release return prepare to record recorder setDelegate self recorder.. @ Warning message @ Audio input hardware not available delegate nil cancelButtonTitle @ OK otherButtonTitles nil cantRecordAlert show cantRecordAlert release return start recording recorder..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos exifData tagValue NSNumber numberWithInt EXIF_Model .... .... The retrieving of tags definition is OK but all tag values returns nil In case you want to give a try to the library you need to define a global..
Upload File to FTP Server on iPhone http://stackoverflow.com/questions/1266176/upload-file-to-ftp-server-on-iphone uploadfile uploaddir . file if move_uploaded_file _FILES 'userfile' 'tmp_name' uploadfile echo OK else echo ERROR iPhone Code BOOL uploadImage NSData imageData filename NSString filename NSString urlString.. returnData encoding NSUTF8StringEncoding autorelease return returnString isEqualToString @ OK Method Call self uploadImage UIImageJPEGRepresentation imageView.image 1.0 filename imageName share..
Verify receipt for in App purchase http://stackoverflow.com/questions/1298998/verify-receipt-for-in-app-purchase the app to the server via GET . I forget if there's a length issue there per the RFCs. Maybe it's OK or maybe it's server specific. Readers Advisement welcome on this part There may also be some balking..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to..
Objective-C categories in static library http://stackoverflow.com/questions/2567498/objective-c-categories-in-static-library project added to app project as direct dependency target general direct dependecies and all works OK but categories. A category defined in static library is not working in app. So my question is how to.. Open target info in fist page General and add my lib to dependencies list after that all works OK. ObjC flag was enough in my case. I also was interested with idea from http iphonedevelopmentexperiences.blogspot.com..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 I think there should be a clear way for the user to exit the app like an exit button. is it now OK with apple and how can it be done iphone ios4 share improve this question No still shouldn't do..
How to parsing JSON object in iPhone SDK (XCode) using JSON-Framework http://stackoverflow.com/questions/3165290/how-to-parsing-json-object-in-iphone-sdk-xcode-using-json-framework Andy job developer clientId 2 clientName Peter job carpenter message MSG0001 Success status OK I want to get the array 0 value 2 and array 1 value clientId clientName job using JSON Framework. Do..
Property Declaration and Automatic Backing Storage Allocation http://stackoverflow.com/questions/3238009/property-declaration-and-automatic-backing-storage-allocation myObject2 NSObject @property copy NSString title @end The myObject2 example seems to work. Is it OK to implement properties as in myObject2 or should the associated ivar always be explicitly defined What..
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 infinite recursion # # # So build ONLY the missing platforms configurations. if true ALREADYINVOKED false then echo RECURSION I am NOT the root invocation so I'm NOT going to recurse else # CRITICAL.. I'm NOT going to recurse else # CRITICAL # Prevent infinite recursion Xcode sucks export ALREADYINVOKED true echo RECURSION I am the root ... recursing all missing build targets NOW... echo RECURSION ...about.. ######### # # Added StackOverflow suggestion to also copy include files # untested but should work OK # echo Fetching headers from PUBLIC_HEADERS_FOLDER_PATH echo if you embed your library project in another..
What's the easiest way to get the current location of an iPhone? http://stackoverflow.com/questions/459355/whats-the-easiest-way-to-get-the-current-location-of-an-iphone UIAlertView alloc initWithTitle @ Error message error description delegate nil cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void dealloc locationManager release currentLocation..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request Error @ message error localizedDescription delegate nil cancelButtonTitle NSLocalizedString @ OK @ otherButtonTitles nil autorelease show void connectionDidFinishLoading NSURLConnection connection..
Locking the Fields in MFMailComposeViewController http://stackoverflow.com/questions/6284599/locking-the-fields-in-mfmailcomposeviewcontroller @ Message Sent message @ Thanks we have sent your message delegate self cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void messageFailed SKPSMTPMessage message error NSError.. @ Email Error message @ Sending Failed Unknown Error delegate self cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void createWaitOverlay fade the overlay in loadingLabel..
Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK? http://stackoverflow.com/questions/7760946/is-it-possible-to-target-older-ios-versions-when-using-xcode-4-2-and-ios-5-sdk my app will still run on lower iOS versions if I am unable to install them on my old phone Edit OK it looks like iOS SDK 5 dropped support for armv6 by default. What you have to do is add armv6 in the..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample on the developer forum there is one for iCloud and CoreData which is massive . The apple docs are OK but I still can't see the big picture. So please bear with me some of these questions are quite fundamental..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons actually needed just like it can unroll loops eliminate temporary variables inline functions etc. OK now I will tell you about the small downsides If you're a long time ObjC developer you will twitch for..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos so we're stuck for sure no EXIF info will be given through this interface. FINAL UPDATE Ok I managed to get it working at least to geotag properly pictures returned by the picker. Before triggering..
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav ipad uiviewcontroller uinavigationcontroller uipopovercontroller share improve this question Ok I was struggling with the same issue. None of the above solutions worked for me pretty nicely that is..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework from FFT Bins using phase change between frames to get the precise frequency for a given bin. Ok Now onto the code Note the 'ip' in vDSP_fft_zrip ' in place ' ie output overwrites A 'r' means it takes..
Opening the Settings app from another app http://stackoverflow.com/questions/5655674/opening-the-settings-app-from-another-app the Settings app from another app Ok i know that there are many question about it but they are all from many time ago. So...I know that it..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers delegate Direct dependencies make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between.. best practices using an example with the UIImagePickerController. I wish the videos were available Ok so... I'm afraid my objc fu is not so strong. I'm also a bit confused by the final line in the above.. set one delegate at a time. So when I have multiple viewcontroller communication what am I to do Ok that's the set up gang. I know I can easily do my communication methods in the app delegate by reference's..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder err userInfo description UIAlertView alert UIAlertView alloc initWithTitle @ Warning message err localizedDescription delegate nil cancelButtonTitle @ OK otherButtonTitles nil alert show alert release return prepare to record recorder setDelegate self recorder prepareToRecord recorder.meteringEnabled YES BOOL audioHWAvailable.. UIAlertView cantRecordAlert UIAlertView alloc initWithTitle @ Warning message @ Audio input hardware not available delegate nil cancelButtonTitle @ OK otherButtonTitles nil cantRecordAlert show cantRecordAlert release return start recording recorder recordForDuration NSTimeInterval 10 void stopRecording recorder..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos exifData tagValue NSNumber numberWithInt EXIF_DateTime id t exifData tagValue NSNumber numberWithInt EXIF_Model .... .... The retrieving of tags definition is OK but all tag values returns nil In case you want to give a try to the library you need to define a global variable to get it running as explained in the doc but..
Upload File to FTP Server on iPhone http://stackoverflow.com/questions/1266176/upload-file-to-ftp-server-on-iphone php uploaddir 'photos ' file basename _FILES 'userfile' 'name' uploadfile uploaddir . file if move_uploaded_file _FILES 'userfile' 'tmp_name' uploadfile echo OK else echo ERROR iPhone Code BOOL uploadImage NSData imageData filename NSString filename NSString urlString @ http www.yourdomainName.com yourPHPPage.php NSMutableURLRequest..
Verify receipt for in App purchase http://stackoverflow.com/questions/1298998/verify-receipt-for-in-app-purchase concerned is the length of the payload in the URL going from the app to the server via GET . I forget if there's a length issue there per the RFCs. Maybe it's OK or maybe it's server specific. Readers Advisement welcome on this part There may also be some balking at making this a synchronous request. You may want to post..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone an option to switch to another type of interface e.g. REST based API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to add a proxy server between the iPhone and the web service Perhaps..
Objective-C categories in static library http://stackoverflow.com/questions/2567498/objective-c-categories-in-static-library link static library to iphone project. I use staic library project added to app project as direct dependency target general direct dependecies and all works OK but categories. A category defined in static library is not working in app. So my question is how to add static library with some categories into other project.. file and drop it into Target Link Binary With Library group. Open target info in fist page General and add my lib to dependencies list after that all works OK. ObjC flag was enough in my case. I also was interested with idea from http iphonedevelopmentexperiences.blogspot.com 2010 03 categories in static library.html..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 button puts your app in a suspended mode multitasking .. and I think there should be a clear way for the user to exit the app like an exit button. is it now OK with apple and how can it be done iphone ios4 share improve this question No still shouldn't do this. You have handlers for the different stages so this is..
How to parsing JSON object in iPhone SDK (XCode) using JSON-Framework http://stackoverflow.com/questions/3165290/how-to-parsing-json-object-in-iphone-sdk-xcode-using-json-framework JSON object like this data array 2 array clientId 1 clientName Andy job developer clientId 2 clientName Peter job carpenter message MSG0001 Success status OK I want to get the array 0 value 2 and array 1 value clientId clientName job using JSON Framework. Do you have any idea how to do that iphone xcode json parsing..
Property Declaration and Automatic Backing Storage Allocation http://stackoverflow.com/questions/3238009/property-declaration-and-automatic-backing-storage-allocation title @property copy NSString title @end and this @interface myObject2 NSObject @property copy NSString title @end The myObject2 example seems to work. Is it OK to implement properties as in myObject2 or should the associated ivar always be explicitly defined What are the ramifications of not explicitly declaring the ivar..
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 being built Xcode WILL CRASH YOUR COMPUTER if you try this infinite recursion # # # So build ONLY the missing platforms configurations. if true ALREADYINVOKED false then echo RECURSION I am NOT the root invocation so I'm NOT going to recurse else # CRITICAL # Prevent infinite recursion Xcode sucks export ALREADYINVOKED.. false then echo RECURSION I am NOT the root invocation so I'm NOT going to recurse else # CRITICAL # Prevent infinite recursion Xcode sucks export ALREADYINVOKED true echo RECURSION I am the root ... recursing all missing build targets NOW... echo RECURSION ...about to invoke xcodebuild configuration CONFIGURATION project.. EXECUTABLE_NAME CURRENTCONFIG_SIMULATOR_DIR EXECUTABLE_NAME ######### # # Added StackOverflow suggestion to also copy include files # untested but should work OK # echo Fetching headers from PUBLIC_HEADERS_FOLDER_PATH echo if you embed your library project in another project you will need to add echo a User Search Headers..
What's the easiest way to get the current location of an iPhone? http://stackoverflow.com/questions/459355/whats-the-easiest-way-to-get-the-current-location-of-an-iphone
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request error UIAlertView alloc initWithTitle NSLocalizedString @ Error @ message error localizedDescription delegate nil cancelButtonTitle NSLocalizedString @ OK @ otherButtonTitles nil autorelease show void connectionDidFinishLoading NSURLConnection connection NSString responseText NSString alloc initWithData self.data..
Locking the Fields in MFMailComposeViewController http://stackoverflow.com/questions/6284599/locking-the-fields-in-mfmailcomposeviewcontroller UIAlertView alert UIAlertView alloc initWithTitle @ Message Sent message @ Thanks we have sent your message delegate self cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void messageFailed SKPSMTPMessage message error NSError error message release self removeWaitOverlay NSLog @ delegate.. UIAlertView alert UIAlertView alloc initWithTitle @ Email Error message @ Sending Failed Unknown Error delegate self cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void createWaitOverlay fade the overlay in loadingLabel @ Sending Test Drive... bgimage UIImageView alloc initWithFrame..
Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK? http://stackoverflow.com/questions/7760946/is-it-possible-to-target-older-ios-versions-when-using-xcode-4-2-and-ios-5-sdk SDK work for iOS versions lower than 5 How can I be sure that my app will still run on lower iOS versions if I am unable to install them on my old phone Edit OK it looks like iOS SDK 5 dropped support for armv6 by default. What you have to do is add armv6 in the Architectures field under Build Settings for both your Target..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample There are some samples but they are usually quite detailed on the developer forum there is one for iCloud and CoreData which is massive . The apple docs are OK but I still can't see the big picture. So please bear with me some of these questions are quite fundamental but possibly easy to answer. Context I have a very simple..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons smarter than you and can optimize out the ones that aren't actually needed just like it can unroll loops eliminate temporary variables inline functions etc. OK now I will tell you about the small downsides If you're a long time ObjC developer you will twitch for about a week when you see ARC code. You will very quickly..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos from a photo A UIImage does not encapsulate the meta information so we're stuck for sure no EXIF info will be given through this interface. FINAL UPDATE Ok I managed to get it working at least to geotag properly pictures returned by the picker. Before triggering the UIImagePickerController it's up to you to use the..
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav the view stack. Am I missing something Thanks. iphone ipad uiviewcontroller uinavigationcontroller uipopovercontroller share improve this question Ok I was struggling with the same issue. None of the above solutions worked for me pretty nicely that is why I decided to do a little investigation and find out how..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework There is a cunning trick Extracting precise frequencies from FFT Bins using phase change between frames to get the precise frequency for a given bin. Ok Now onto the code Note the 'ip' in vDSP_fft_zrip ' in place ' ie output overwrites A 'r' means it takes real inputs Look at the documentation on vDSP_fft_zrip Real..
Opening the Settings app from another app http://stackoverflow.com/questions/5655674/opening-the-settings-app-from-another-app the Settings app from another app Ok i know that there are many question about it but they are all from many time ago. So...I know that it is possible because the Map app does it. In the Map app if..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers Data Global Variables or singletons This includes your application delegate Direct dependencies make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller into your app delegate and reference the.. slide where the lecturer then apparently demonstrates the best practices using an example with the UIImagePickerController. I wish the videos were available Ok so... I'm afraid my objc fu is not so strong. I'm also a bit confused by the final line in the above quote. I've been doing my fair share of googling about this.. indicates delegates as an method Except.... objects can only set one delegate at a time. So when I have multiple viewcontroller communication what am I to do Ok that's the set up gang. I know I can easily do my communication methods in the app delegate by reference's the multiple viewcontroller instances in my appdelegate..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder alert UIAlertView alloc initWithTitle @ Warning message err localizedDescription delegate nil cancelButtonTitle @ OK otherButtonTitles nil alert show alert release return prepare to record recorder setDelegate self recorder prepareToRecord.. alloc initWithTitle @ Warning message @ Audio input hardware not available delegate nil cancelButtonTitle @ OK otherButtonTitles nil cantRecordAlert show cantRecordAlert release return start recording recorder recordForDuration NSTimeInterval..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos EXIF_DateTime id t exifData tagValue NSNumber numberWithInt EXIF_Model .... .... The retrieving of tags definition is OK but all tag values returns nil In case you want to give a try to the library you need to define a global variable to get..
Upload File to FTP Server on iPhone http://stackoverflow.com/questions/1266176/upload-file-to-ftp-server-on-iphone 'userfile' 'name' uploadfile uploaddir . file if move_uploaded_file _FILES 'userfile' 'tmp_name' uploadfile echo OK else echo ERROR iPhone Code BOOL uploadImage NSData imageData filename NSString filename NSString urlString @ http www.yourdomainName.com.. NSString alloc initWithData returnData encoding NSUTF8StringEncoding autorelease return returnString isEqualToString @ OK Method Call self uploadImage UIImageJPEGRepresentation imageView.image 1.0 filename imageName share improve this answer..
Verify receipt for in App purchase http://stackoverflow.com/questions/1298998/verify-receipt-for-in-app-purchase the URL going from the app to the server via GET . I forget if there's a length issue there per the RFCs. Maybe it's OK or maybe it's server specific. Readers Advisement welcome on this part There may also be some balking at making this a synchronous..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone e.g. REST based API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to add a proxy server..
Objective-C categories in static library http://stackoverflow.com/questions/2567498/objective-c-categories-in-static-library I use staic library project added to app project as direct dependency target general direct dependecies and all works OK but categories. A category defined in static library is not working in app. So my question is how to add static library.. With Library group. Open target info in fist page General and add my lib to dependencies list after that all works OK. ObjC flag was enough in my case. I also was interested with idea from http iphonedevelopmentexperiences.blogspot.com 2010..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 multitasking .. and I think there should be a clear way for the user to exit the app like an exit button. is it now OK with apple and how can it be done iphone ios4 share improve this question No still shouldn't do this. You have handlers..
How to parsing JSON object in iPhone SDK (XCode) using JSON-Framework http://stackoverflow.com/questions/3165290/how-to-parsing-json-object-in-iphone-sdk-xcode-using-json-framework clientId 1 clientName Andy job developer clientId 2 clientName Peter job carpenter message MSG0001 Success status OK I want to get the array 0 value 2 and array 1 value clientId clientName job using JSON Framework. Do you have any idea how..
Property Declaration and Automatic Backing Storage Allocation http://stackoverflow.com/questions/3238009/property-declaration-and-automatic-backing-storage-allocation and this @interface myObject2 NSObject @property copy NSString title @end The myObject2 example seems to work. Is it OK to implement properties as in myObject2 or should the associated ivar always be explicitly defined What are the ramifications..
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 if you try this infinite recursion # # # So build ONLY the missing platforms configurations. if true ALREADYINVOKED false then echo RECURSION I am NOT the root invocation so I'm NOT going to recurse else # CRITICAL # Prevent infinite.. root invocation so I'm NOT going to recurse else # CRITICAL # Prevent infinite recursion Xcode sucks export ALREADYINVOKED true echo RECURSION I am the root ... recursing all missing build targets NOW... echo RECURSION ...about to invoke xcodebuild.. EXECUTABLE_NAME ######### # # Added StackOverflow suggestion to also copy include files # untested but should work OK # echo Fetching headers from PUBLIC_HEADERS_FOLDER_PATH echo if you embed your library project in another project you will..
What's the easiest way to get the current location of an iPhone? http://stackoverflow.com/questions/459355/whats-the-easiest-way-to-get-the-current-location-of-an-iphone alert alert UIAlertView alloc initWithTitle @ Error message error description delegate nil cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void dealloc locationManager release currentLocation release super dealloc..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request NSLocalizedString @ Error @ message error localizedDescription delegate nil cancelButtonTitle NSLocalizedString @ OK @ otherButtonTitles nil autorelease show void connectionDidFinishLoading NSURLConnection connection NSString responseText..
Locking the Fields in MFMailComposeViewController http://stackoverflow.com/questions/6284599/locking-the-fields-in-mfmailcomposeviewcontroller alloc initWithTitle @ Message Sent message @ Thanks we have sent your message delegate self cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void messageFailed SKPSMTPMessage message error NSError error message release.. alloc initWithTitle @ Email Error message @ Sending Failed Unknown Error delegate self cancelButtonTitle @ OK otherButtonTitles nil alert show alert release void createWaitOverlay fade the overlay in loadingLabel @ Sending Test Drive.....
Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK? http://stackoverflow.com/questions/7760946/is-it-possible-to-target-older-ios-versions-when-using-xcode-4-2-and-ios-5-sdk How can I be sure that my app will still run on lower iOS versions if I am unable to install them on my old phone Edit OK it looks like iOS SDK 5 dropped support for armv6 by default. What you have to do is add armv6 in the Architectures field..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample quite detailed on the developer forum there is one for iCloud and CoreData which is massive . The apple docs are OK but I still can't see the big picture. So please bear with me some of these questions are quite fundamental but possibly..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons the ones that aren't actually needed just like it can unroll loops eliminate temporary variables inline functions etc. OK now I will tell you about the small downsides If you're a long time ObjC developer you will twitch for about a week when..
how to get the message when receiving the “kCTMessageReceivedNotification” notification on IOS5 http://stackoverflow.com/questions/10681995/how-to-get-the-message-when-receiving-the-kctmessagereceivednotification-notif do to get the message Thanks iphone ios5 sms jailbreak share improve this question Here's what I found ... Just looking at the dumped private APIs it looks like ChatKit.framework could help. Take a look at CKSMSService.h or CKMadridService.h.. sms jailbreak share improve this question Here's what I found ... Just looking at the dumped private APIs it looks like ChatKit.framework could help. Take a look at CKSMSService.h or CKMadridService.h for iMessage messages. I did quickly.. Here's what I found ... Just looking at the dumped private APIs it looks like ChatKit.framework could help. Take a look at CKSMSService.h or CKMadridService.h for iMessage messages. I did quickly attempt to swizzle my own method in for a couple..
How to implement a box or gaussian blur on iPhone http://stackoverflow.com/questions/1140117/how-to-implement-a-box-or-gaussian-blur-on-iphone the view down to 4x4 pixel chunks then scales it back up using bilinear filtering... it's EXTREMELY fast and looks ok if you are just wanting to blur a background view under a modal view. To undo it just set the rasterization scale back.. the view down to 4x4 pixel chunks then scales it back up using bilinear filtering... it's EXTREMELY fast and looks ok if you are just wanting to blur a background view under a modal view. To undo it just set the rasterization scale back to..
UIWebView to view self signed websites (No private api, not NSURLConnection) - is it possible? http://stackoverflow.com/questions/11573164/uiwebview-to-view-self-signed-websites-no-private-api-not-nsurlconnection-i NSLog @ WebController received response via NSURLConnection remake a webview call now that authentication has passed ok. _authenticated YES _web loadRequest _request Cancel the URL connection otherwise we double up webview url connection same..
http://stackoverflow.com/questions/1166444/mkmapview-zoom-and-region delegate and trace the span values in regionDidChange delegate method results don't seem to correlate each other. It's ok when I zoom out and see the span delta values are increasing as specified in documentation. But suddenly I drag the map..
IOS 6 force device orientation to landscape http://stackoverflow.com/questions/12640870/ios-6-force-device-orientation-to-landscape On load the controller keeps staying in portrait. After rotating the device the orientation changes just ok. But I need to make the controller to rotate automatically to landscape on load thus the user will have to rotate the device..
How to save the content in UIWebView for faster loading on next launch? http://stackoverflow.com/questions/1343515/how-to-save-the-content-in-uiwebview-for-faster-loading-on-next-launch NSUserDomainMask YES NSLog @ CACHE REQUEST S @ request NSString documentsDirectory paths objectAtIndex 0 NSArray tokens request.URL.relativePath componentsSeparatedByString @ if tokens nil NSLog @ ignoring cache for @ request return nil.. documentsDirectory paths objectAtIndex 0 NSArray tokens request.URL.relativePath componentsSeparatedByString @ if tokens nil NSLog @ ignoring cache for @ request return nil NSString pathWithoutRessourceName @ for int i 0 i tokens count 1.. @ if tokens nil NSLog @ ignoring cache for @ request return nil NSString pathWithoutRessourceName @ for int i 0 i tokens count 1 i pathWithoutRessourceName pathWithoutRessourceName stringByAppendingString NSString stringWithFormat @ @ @ tokens..
What's the cheapest mac development box possible? http://stackoverflow.com/questions/190662/whats-the-cheapest-mac-development-box-possible but I don't know at what point an old mac moves from a bargain to a doorstop. How cheap and old can I go to have an ok mac development machine Is there any other way to have a good dev machine for the platform without buying a mac and without..
Using custom fonts in interface builder http://stackoverflow.com/questions/4284817/using-custom-fonts-in-interface-builder doesn't like the font. I can't use it with IB it always shows the default font. Is there a way to tell IB that its ok to use the font iphone fonts interface builder share improve this question I have also this problem in Xcode 4. In..
NSMutableString as retain/copy http://stackoverflow.com/questions/4995254/nsmutablestring-as-retain-copy consider some other things as well now we get to the NSMutable type details. the implementation of property syntax invokes copy . as we know NSMutableString copy returns an immutable NSString. this is an issue waiting to happen for a naive implementation.. to support that. depending on how the interface is used this can also introduce a lot of unnecessary copying. boo. ok now we're pretty convinced our 'improvement' is still a bad idea in most cases how can we improve the design you should..
Building with LLVM and any optimization causes app to crash on startup http://stackoverflow.com/questions/5490432/building-with-llvm-and-any-optimization-causes-app-to-crash-on-startup level or optimization that is not none anything but O0 the app crashes after i launch it on the device simulator is ok . I can't seem to debug the crash as it does not happen when i build in xcode and attach via GDB LLDB. Also the crash only..
Convert decimal to fraction in Objective-C? http://stackoverflow.com/questions/5552537/convert-decimal-to-fraction-in-objective-c I am formatting for output of my answer theTextField setText NSString stringWithFormat @ f'' myVariable This displays ok as decimal but would really like it as a whole number and fraction ie. 7 1 2 instead of 7.5000. Thank you in advanced Update..
Opening the Settings app from another app http://stackoverflow.com/questions/5655674/opening-the-settings-app-from-another-app the Map app does it. In the Map app if I turn off the localization for this app it send me a message and if I press ok the Settings App will be open. And my question is how is this possible How can i open the Setting app from my own app Basically..
NSString @property, using copy instead of retain http://stackoverflow.com/questions/587414/nsstring-property-using-copy-instead-of-retain @property using copy instead of retain I'm looking over Apple's sample application EditableDetailView and noticed that in one of their controllers they're setting an instance.. Yes it's so that it can make a unique copy without affecting the existing data. The synthesized setters essentially look like this For @synthesize nonatomic retain foo void setFoo NSFoo theFoo theFoo retain retain new value foo release release.. you might deallocate the value by accident. Also note that if the old value is nil sending it a release message is ok since sending a message to a nil object is explicitly allowed and does nothing. The choice of retaining versus copying just..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes different values. There we go 2.000 events with an NSDate value. Now we add a second version of the data model which looks like this Data Model Version 2 The difference is The Event entity is gone and we've got two new ones. One which stores.. only one method createDestinationInstancesForSourceInstance entityMapping manager error . The implementation will look like this StepOneEntityMigrationPolicy.m #import StepOneEntityMigrationPolicy.h @implementation StepOneEntityMigrationPolicy.. withExtension @ cdm NSMappingModel mappingModel NSMappingModel alloc initWithContentsOfURL fileURL BOOL ok migrationManager migrateStoreFromURL sourceStoreURL type sourceStoreType options sourceStoreOptions withMappingModel..
How to combine video clips with different orientation using AVFoundation http://stackoverflow.com/questions/6575128/how-to-combine-video-clips-with-different-orientation-using-avfoundation objectAtIndex 0 set the orientation if i 0 compositionVideoTrack setPreferredTransform videoTrack.preferredTransform ok compositionVideoTrack insertTimeRange CMTimeRangeMake kCMTimeZero asset duration ofTrack videoTrack atTime startTime error.. insertTimeRange CMTimeRangeMake kCMTimeZero asset duration ofTrack videoTrack atTime startTime error nil ok compositionAudioTrack insertTimeRange CMTimeRangeMake kCMTimeZero asset duration ofTrack audioTrack atTime startTime error.. NSNumber numberWithBool YES forKey AVURLAssetPreferPreciseDurationAndTimingKey NSError error nil BOOL ok NO AVAssetTrack sourceVideoTrack sourceAsset tracksWithMediaType AVMediaTypeVideo objectAtIndex 0 CGSize temp CGSizeApplyAffineTransform..
Retain Cycles: Why is that such a bad thing? http://stackoverflow.com/questions/791322/retain-cycles-why-is-that-such-a-bad-thing that points to A retaining it. So both retain eachother. Some people say that this strong connection can't be broken ever again. But is that really the case If B would release A then A could easily release B and so B would be deallocated... reference to it through retaining it in an instance variable I still don't see why that connection could not be broken up again. iphone cocoa touch memory management share improve this question Cycles aren't bad but they are often avoided.. gets to zero there are no references and so the object can be deleted. This usually takes care of itself and works ok without any careful thinking. If you've got a group of objects with no cycles and you drop your reference to the root object..
How to make image maps clickable using UIWebview in iphone? http://stackoverflow.com/questions/10793698/how-to-make-image-maps-clickable-using-uiwebview-in-iphone UIAlertView myAlert UIAlertView alloc initWithTitle @ Connectivity message @ Hello delegate nil cancelButtonTitle @ Ok otherButtonTitles nil autorelease myAlert show the below line of code should get the string but its not working NSString..
NSSetUncaughtExceptionHandler not catch all errors on iPhone http://stackoverflow.com/questions/1128539/nssetuncaughtexceptionhandler-not-catch-all-errors-on-iphone Info Can't save record message GTMStackTraceFromException exception delegate nil cancelButtonTitle NSLocalizedString @ Ok @ Button Ok otherButtonTitles nil alert show alert release int main int argc char argv For crash report.. NSSetUncaughtExceptionHandler.. record message GTMStackTraceFromException exception delegate nil cancelButtonTitle NSLocalizedString @ Ok @ Button Ok otherButtonTitles nil alert show alert release int main int argc char argv For crash report.. NSSetUncaughtExceptionHandler..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos the meta information so we're stuck for sure no EXIF info will be given through this interface. FINAL UPDATE Ok I managed to get it working at least to geotag properly pictures returned by the picker. Before triggering the UIImagePickerController..
Core-Data iPhone: could not locate an NSManagedObjectModel http://stackoverflow.com/questions/1632497/core-data-iphone-could-not-locate-an-nsmanagedobjectmodel help would be appreciated. Thank you for your time Vivas iphone objective c core data share improve this question Ok. Placing the following code inside of the RootViewController's viewDidLoad eliminates the error if managedObjectContext..
iPhone - What are reuseIdentifiers (UITableViewCell)? http://stackoverflow.com/questions/2152180/iphone-what-are-reuseidentifiers-uitableviewcell or link to a place where it is iphone objective c uitableviewcell reuseidentifier share improve this question Ok this is how I believe it works Using dequeueReusableCellWithIdentifier for the tableView you can greatly speed things up...
How to search MKMapView with UISearchBar? http://stackoverflow.com/questions/2281798/how-to-search-mkmapview-with-uisearchbar to hear how should it be done. iphone ios cocoa touch mkmapview mkreversegeocoder share improve this question Ok to answer my own question As was mentioned before the best thing to do is to use the Google Maps API it supports a lot of..
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav Thanks. iphone ipad uiviewcontroller uinavigationcontroller uipopovercontroller share improve this question Ok I was struggling with the same issue. None of the above solutions worked for me pretty nicely that is why I decided to do..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework precise frequencies from FFT Bins using phase change between frames to get the precise frequency for a given bin. Ok Now onto the code Note the 'ip' in vDSP_fft_zrip ' in place ' ie output overwrites A 'r' means it takes real inputs Look..
Xcode: Unable to open project… cannot be opened because the project file cannot be parsed http://stackoverflow.com/questions/361799/xcode-unable-to-open-project-cannot-be-opened-because-the-project-file-canno all the files it wants... I really don't want to rebuild my project from scratch if possible. Thanks in advance. EDIT Ok I did a diff between this and a slightly older project file that worked and saw that there was some corruption in the file...
http://stackoverflow.com/questions/3712979/applicationwillenterforeground-vs-applicationdidbecomeactive-applicationwillre that applicationWillResignActive gets called when an incoming SMS or call comes in but the user chooses to click Ok and continue. I don't want my app to take any action in these cases. I just want it to keep running without any intermediate..
http://stackoverflow.com/questions/3841642/curve-text-on-existing-circle I hope someone can get me some starting points on how I can draw the text in the white circle at certain points. EDIT Ok I am currently at this point I accomplish by using the following code UIImage createMenuRingWithFrame CGRect frame CGRect..
iOS WebView remote html with local image files http://stackoverflow.com/questions/5572258/ios-webview-remote-html-with-local-image-files I have. Any help will be appreciated. iphone html image uiwebview nsurlprotocol share improve this question Ok here is an example how to subclass NSURLProtocol and deliver an image image1.png which is already in the bundle. Below is..
Opening the Settings app from another app http://stackoverflow.com/questions/5655674/opening-the-settings-app-from-another-app the Settings app from another app Ok i know that there are many question about it but they are all from many time ago. So...I know that it is possible because..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers includes your application delegate Direct dependencies make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller.. demonstrates the best practices using an example with the UIImagePickerController. I wish the videos were available Ok so... I'm afraid my objc fu is not so strong. I'm also a bit confused by the final line in the above quote. I've been doing.. objects can only set one delegate at a time. So when I have multiple viewcontroller communication what am I to do Ok that's the set up gang. I know I can easily do my communication methods in the app delegate by reference's the multiple..
Moving a Stick figure, anchorpoints, animation, or something else…? http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else a Stick figure anchorpoints animation or something else&hellip Ok so I am making a game with stick figures with cocos2d in objective c... Different things need to be animated so please give..
Setting a background image for a tabbar http://stackoverflow.com/questions/8909379/setting-a-background-image-for-a-tabbar imageView atIndex 0 imageView release super viewDidLoad This is not working for me. UPDATE UPDATE 23rd January 2012 Ok I've made a bit of progress. This only stopped working since I upgraded to Xcode 4.2 and IOS5. I managed to get it back..
How to manage Enterprise Distribution certificate expiration? http://stackoverflow.com/questions/9216485/how-to-manage-enterprise-distribution-certificate-expiration the same mechanism. So with my developer program I can't have two valid distribution certificates at the same time. Ok as developers we can live with that. Can our costumer have two valid Enterprise Distribution certificates at the same time..
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