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2014/10/15 ¤U¤È 10:14:24
iphone Programming Glossary: startHow do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder to the classes. I am a newbie at iPhone development so I am looking for a simple sample to get me started. Thanks in advance. iphone audio recording share improve this question Actually there are no.. KVC. #define DOCUMENTS_FOLDER NSHomeDirectory stringByAppendingPathComponent @ Documents void startRecording UIBarButtonItem stopButton UIBarButtonItem alloc initWithTitle @ Stop style UIBarButtonItemStyleBordered.. cancelButtonTitle @ OK otherButtonTitles nil cantRecordAlert show cantRecordAlert release return start recording recorder recordForDuration NSTimeInterval 10 void stopRecording recorder stop NSURL url NSURL..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path imageViewForAnimation.frame Your image frame.origin from where the animation need to get start CGPoint viewOrigin imageViewForAnimation.frame.origin viewOrigin.y viewOrigin.y imageFrame.size.height..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw . The second should be NSException raise and its location should be CoreFoundation . Now if you start debugging your application with breakpoints enabled it should break on the throw of these exceptions...
How to retrieve user's current city name? http://stackoverflow.com/questions/1382900/how-to-retrieve-users-current-city-name self locationManager.desiredAccuracy kCLLocationAccuracyNearestTenMeters locationManager startUpdatingLocation this delegate is called when the app successfully finds your current location void locationManager.. MKReverseGeocoder alloc initWithCoordinate newLocation.coordinate geoCoder.delegate self geoCoder start this delegate method is called if an error occurs in locating your current location void locationManager..
Custom animation for pushing a UIViewController http://stackoverflow.com/questions/1406037/custom-animation-for-pushing-a-uiviewcontroller rectangle lets say 100 100 220 380 during the animation to full screen. Any suggestions where to start respectively any documents tutorials links Alright. I could make the expand animation with the following..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports crashreport.crash myApp.app.dSYM and it just outputs the same text that is in the crash report to start with not symbolicated. Am I doing something wrong Any help would be greatly appreciated thanks. iphone..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone
http://stackoverflow.com/questions/2711297/underline-text-in-uilabel but it is obviously too heave a class for just text rendering. My thoughts was to figure out the start point and length of each string in each line. And draw a line under it accordingly. I meet problems.. line. And draw a line under it accordingly. I meet problems at how to figure out the length and start point forthe string. Can anybody help me on this I try to use UILabel textRectForBounds limitedToNumberOfLines.. the drawing bounding rect for the text right Then I have to work on the aligment How can I get the start point of each line when it is center justified and right justfied I am new here so thank in advance...
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 2 pages each side of the page in focus so that the PDF image is ready to mask the layer before it starts drawing.Pages are destroyed again when they are 2 pages away from the focused page. Does anyone have.. 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 drawLayer..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode mode What's the best way to create an iPhone application that runs in landscape mode from the start regardless of the position of the device Both programmatically and using the Interface Builder. iphone..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events The doc says that all background tasks VoIP audio location updates will be automatically restarted in background if the app was terminated. VoIP apps will be started in background automatically after.. updates will be automatically restarted in background if the app was terminated. VoIP apps will be started in background automatically after bootup With abusing this behavior you can make your app be looking.. running forever . Register for one background process i.e. VoIP . This will cause your app to be restarted after termination. Now write some Task has to be finished code. According to Apple you have some time..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices . Of course these are all working with Ruby on Rails which I am not tied to but it's a place to start. The main requirements I have for my solution are Any changes should be sent in the background without..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection..
http://stackoverflow.com/questions/554997/cancel-a-uiview-animation Set a very short duration and make sure you use the setAnimationBeginsFromCurrentState method to start from the current state. When you set it to YES the current animation is cut short. Looks something like..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c which helped you get it iphone objective c cocoa memory share improve this question Let's start with retain and release autorelease is really just a special case once you understand the basic concepts...
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 And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void pointers to id which you continue to need to perform KVO correctly . And blocks.....
iPhone App ??#160;Add voice recognition? [closed] http://stackoverflow.com/questions/942312/iphone-app-add-voice-recognition I've seen big companies like Google etc implement this feature but I'm curious about doing it on a start up level. Anyone looked into this Are there any tools out there for us to do this iphone speech recognition..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 subject and Apple's ChromaKey sample application which was only made available at WWDC 2011 . I start by configuring my AVAssetWriter adding an input and configuring a pixel buffer input. The following.. writer to be encoded CMTime currentTime CMTimeMakeWithSeconds NSDate date timeIntervalSinceDate startTime 120 if assetWriterPixelBufferInput appendPixelBuffer pixel_buffer withPresentationTime currentTime..
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode 'Leaks' and like a previous poster said the easiest way to run it is straight from Xcode run Start with Performance Tool Leaks. It seems very good at detecting memory leaks and was easy for a Non C Head..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines Start Instantly . What's not in the documentation A little background Everytime you try to load a different..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie NSParameterAssert videoWriter canAddInput writerInput videoWriter addInput writerInput 2 Start a session videoWriter startWriting videoWriter startSessionAtSourceTime ¦] 3 Write some samples Or you..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app 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..
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started knowledge of object oriented programming from going through simple Java and C# tutorials Head Start C# book and my wife's intro to OOP course that used Java I have managed to display a 3D textured model..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task and return immediately. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT.. ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ while.. ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ while..
Make movie file with picture Array and song file, using AVAsset http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset NSString stringWithFormat @ @ @ documentsDirectoryPath tString error nil NSLog @ Write Started NSError error nil AVAssetWriter videoWriter AVAssetWriter alloc initWithURL NSURL fileURLWithPath.. YES videoWriter addInput audioWriterInput videoWriter addInput videoWriterInput Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef.. image d times d n frameCount j frameCount Finish the session videoWriterInput markAsFinished Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero CVPixelBufferRef..
http://stackoverflow.com/questions/706344/lock-unlock-events-iphone UIApplication application NSLog @ STATUS Application will Resign Active Start checking the accelerometer while we are in the background UIAccelerometer sharedAccelerometer setDelegate..
Customize the MKAnnotationView callout http://stackoverflow.com/questions/8018841/customize-the-mkannotationview-callout project This is a big hack but also the cleanest way I've seen to implement custom annotations. Start with a NSObject Content class which has a coordinate the class of the callout view to use in the UML..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder to best do this in the iPhone Dev Center and only reference to the classes. I am a newbie at iPhone development so I am looking for a simple sample to get me started. Thanks in advance. iphone audio recording share improve this question Actually there are no examples at all. Here is my working code. Recording is triggered.. recorded audio as NSData in the currently edited object using KVC. #define DOCUMENTS_FOLDER NSHomeDirectory stringByAppendingPathComponent @ Documents void startRecording UIBarButtonItem stopButton UIBarButtonItem alloc initWithTitle @ Stop style UIBarButtonItemStyleBordered target self action @selector stopRecording self.navigationItem.rightBarButtonItem.. 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 stop NSURL url NSURL fileURLWithPath recorderFilePath NSError err nil NSData..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path imageToAnimate imageViewForAnimation.alpha 1.0f CGRect imageFrame imageViewForAnimation.frame Your image frame.origin from where the animation need to get start CGPoint viewOrigin imageViewForAnimation.frame.origin viewOrigin.y viewOrigin.y imageFrame.size.height 2.0f viewOrigin.x viewOrigin.x imageFrame.size.width 2.0f..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw and its location should be libobjc.A.dylib . The second should be NSException raise and its location should be CoreFoundation . Now if you start debugging your application with breakpoints enabled it should break on the throw of these exceptions. You should then be able to see the chain of events that led..
How to retrieve user's current city name? http://stackoverflow.com/questions/1382900/how-to-retrieve-users-current-city-name CLLocationManager alloc init autorelease locationManager.delegate self locationManager.desiredAccuracy kCLLocationAccuracyNearestTenMeters locationManager startUpdatingLocation this delegate is called when the app successfully finds your current location void locationManager CLLocationManager manager didUpdateToLocation.. using the found coordinates MKReverseGeocoder geoCoder MKReverseGeocoder alloc initWithCoordinate newLocation.coordinate geoCoder.delegate self geoCoder start this delegate method is called if an error occurs in locating your current location void locationManager CLLocationManager manager didFailWithError NSError error..
Custom animation for pushing a UIViewController http://stackoverflow.com/questions/1406037/custom-animation-for-pushing-a-uiviewcontroller expand animation that means the new view expands from a given rectangle lets say 100 100 220 380 during the animation to full screen. Any suggestions where to start respectively any documents tutorials links Alright. I could make the expand animation with the following code if coming.view superview nil self.view addSubview..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports spotlight. What now I have tried invoking symbolicatecrash crashreport.crash myApp.app.dSYM and it just outputs the same text that is in the crash report to start with not symbolicated. Am I doing something wrong Any help would be greatly appreciated thanks. iphone crash reports symbolicate share improve this question..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone
http://stackoverflow.com/questions/2711297/underline-text-in-uilabel multiple lines of string I find some people suggest UIWebView but it is obviously too heave a class for just text rendering. My thoughts was to figure out the start point and length of each string in each line. And draw a line under it accordingly. I meet problems at how to figure out the length and start point forthe string... figure out the start point and length of each string in each line. And draw a line under it accordingly. I meet problems at how to figure out the length and start point forthe string. Can anybody help me on this I try to use UILabel textRectForBounds limitedToNumberOfLines this should be the drawing bounding rect for the.. textRectForBounds limitedToNumberOfLines this should be the drawing bounding rect for the text right Then I have to work on the aligment How can I get the start point of each line when it is center justified and right justfied I am new here so thank in advance. iphone text uilabel underline share improve this question..
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 than a second before a crisp version appears. Im rendering 2 pages each side of the page in focus so that the PDF image is ready to mask the layer before it starts drawing.Pages are destroyed again when they are 2 pages away from the focused page. Does anyone have any insights no matter how small or obvious to improve the.. 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 drawLayer CALayer layer inContext CGContextRef context is like CGAffineTransform..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode app in landscape mode What's the best way to create an iPhone application that runs in landscape mode from the start regardless of the position of the device Both programmatically and using the Interface Builder. iphone objective c share improve this question Exciting news..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events seconds. This is useful code if you must sometimes check something. The doc says that all background tasks VoIP audio location updates will be automatically restarted in background if the app was terminated. VoIP apps will be started in background automatically after bootup With abusing this behavior you can make your app be.. The doc says that all background tasks VoIP audio location updates will be automatically restarted in background if the app was terminated. VoIP apps will be started in background automatically after bootup With abusing this behavior you can make your app be looking like running forever . Register for one background process.. abusing this behavior you can make your app be looking like running forever . Register for one background process i.e. VoIP . This will cause your app to be restarted after termination. Now write some Task has to be finished code. According to Apple you have some time 5 seconds left to finish tasks. I discovered that this must..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices such as ObjectiveResource Core Resource and RestfulCoreData . Of course these are all working with Ruby on Rails which I am not tied to but it's a place to start. The main requirements I have for my solution are Any changes should be sent in the background without pausing the main thread. It should use as little bandwidth..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request variable that you can process. IMPORTANT Remember to kick off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection NSURLConnection connection didReceiveResponse NSURLResponse..
http://stackoverflow.com/questions/554997/cancel-a-uiview-animation way I do it is to create a new animation to your end point. Set a very short duration and make sure you use the setAnimationBeginsFromCurrentState method to start from the current state. When you set it to YES the current animation is cut short. Looks something like this UIView beginAnimations nil context NULL UIView setAnimationBeginsFromCurrentState..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c conventions about their use Or failing that what did you read which helped you get it iphone objective c cocoa memory share improve this question Let's start with retain and release autorelease is really just a special case once you understand the basic concepts. In Cocoa each object keeps track of how many times it..
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 intermediate programmer needs to deal with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void pointers to id which you continue to need to perform KVO correctly . And blocks... well block memory management is just weird. So my point..
iPhone App ??#160;Add voice recognition? [closed] http://stackoverflow.com/questions/942312/iphone-app-add-voice-recognition I'd like to build an app that uses voice recognition. I've seen big companies like Google etc implement this feature but I'm curious about doing it on a start up level. Anyone looked into this Are there any tools out there for us to do this iphone speech recognition voice recording speech to text share improve this..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 but it was inspired by Dennis Muhlestein's article on the subject and Apple's ChromaKey sample application which was only made available at WWDC 2011 . I start by configuring my AVAssetWriter adding an input and configuring a pixel buffer input. The following code is used to set up the pixel buffer input NSDictionary sourcePixelBufferAttributesDictionary.. pixel_buffer 0 and then simply feed it into my asset writer to be encoded CMTime currentTime CMTimeMakeWithSeconds NSDate date timeIntervalSinceDate startTime 120 if assetWriterPixelBufferInput appendPixelBuffer pixel_buffer withPresentationTime currentTime NSLog @ Problem appending pixel buffer at time lld currentTime.value..
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions string Apple recommends starting landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines Start Instantly . What's not in the documentation A little background Everytime you try to load a different view controller other than that loaded from the main nib your..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie outputSettings videoSettings retain NSParameterAssert writerInput NSParameterAssert videoWriter canAddInput writerInput videoWriter addInput writerInput 2 Start a session videoWriter startWriting videoWriter startSessionAtSourceTime ¦] 3 Write some samples Or you can use AVAssetWriterInputPixelBufferAdaptor. That lets you..
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 Assistant Request a Certificate From a Certificate Authority.....
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started programming from years ago QuickBasic I'm old Beginner's knowledge of object oriented programming from going through simple Java and C# tutorials Head Start C# book and my wife's intro to OOP course that used Java I have managed to display a 3D textured model and spin it using a tutorial in C# I got off the net I didn't..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events app UIApplication sharedApplication bgTask app beginBackgroundTaskWithExpirationHandler ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task and return immediately. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ you can do sth. here or simply do nothing.. app UIApplication sharedApplication bgTask app beginBackgroundTaskWithExpirationHandler ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ while 1 NSLog @ BGTime left f UIApplication sharedApplication.. app UIApplication sharedApplication bgTask app beginBackgroundTaskWithExpirationHandler ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ while 1 NSLog @ BGTime left f UIApplication sharedApplication..
Make movie file with picture Array and song file, using AVAsset http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset @ essai.mp4 NSFileManager defaultManager removeItemAtPath NSString stringWithFormat @ @ @ documentsDirectoryPath tString error nil NSLog @ Write Started NSError error nil AVAssetWriter videoWriter AVAssetWriter alloc initWithURL NSURL fileURLWithPath path fileType AVFileTypeMPEG4 error error NSParameterAssert.. NO videoWriterInput.expectsMediaDataInRealTime YES videoWriter addInput audioWriterInput videoWriter addInput videoWriterInput Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer NULL convert uiimage to CGImage. int.. 0.1 j if append_ok printf error appending image d times d n frameCount j frameCount Finish the session videoWriterInput markAsFinished Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero CVPixelBufferRef buffer NULL Write all picture array in movie file. int frameCount..
http://stackoverflow.com/questions/706344/lock-unlock-events-iphone this behavior Thus... In your application delegate void applicationWillResignActive UIApplication application NSLog @ STATUS Application will Resign Active Start checking the accelerometer while we are in the background UIAccelerometer sharedAccelerometer setDelegate self UIAccelerometer sharedAccelerometer setUpdateInterval..
Customize the MKAnnotationView callout http://stackoverflow.com/questions/8018841/customize-the-mkannotationview-callout For explanation purposes here is some UML from a forked project This is a big hack but also the cleanest way I've seen to implement custom annotations. Start with a NSObject Content class which has a coordinate the class of the callout view to use in the UML is AnnotationView but you can create more and set them here..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder and only reference to the classes. I am a newbie at iPhone development so I am looking for a simple sample to get me started. Thanks in advance. iphone audio recording share improve this question Actually there are no examples at all. Here.. edited object using KVC. #define DOCUMENTS_FOLDER NSHomeDirectory stringByAppendingPathComponent @ Documents void startRecording UIBarButtonItem stopButton UIBarButtonItem alloc initWithTitle @ Stop style UIBarButtonItemStyleBordered target.. delegate nil cancelButtonTitle @ OK otherButtonTitles nil cantRecordAlert show cantRecordAlert release return start recording recorder recordForDuration NSTimeInterval 10 void stopRecording recorder stop NSURL url NSURL fileURLWithPath..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path 1.0f CGRect imageFrame imageViewForAnimation.frame Your image frame.origin from where the animation need to get start CGPoint viewOrigin imageViewForAnimation.frame.origin viewOrigin.y viewOrigin.y imageFrame.size.height 2.0f viewOrigin.x..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw be libobjc.A.dylib . The second should be NSException raise and its location should be CoreFoundation . Now if you start debugging your application with breakpoints enabled it should break on the throw of these exceptions. You should then be..
How to retrieve user's current city name? http://stackoverflow.com/questions/1382900/how-to-retrieve-users-current-city-name locationManager.delegate self locationManager.desiredAccuracy kCLLocationAccuracyNearestTenMeters locationManager startUpdatingLocation this delegate is called when the app successfully finds your current location void locationManager CLLocationManager.. geoCoder MKReverseGeocoder alloc initWithCoordinate newLocation.coordinate geoCoder.delegate self geoCoder start this delegate method is called if an error occurs in locating your current location void locationManager CLLocationManager..
Custom animation for pushing a UIViewController http://stackoverflow.com/questions/1406037/custom-animation-for-pushing-a-uiviewcontroller expands from a given rectangle lets say 100 100 220 380 during the animation to full screen. Any suggestions where to start respectively any documents tutorials links Alright. I could make the expand animation with the following code if coming.view..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports symbolicatecrash crashreport.crash myApp.app.dSYM and it just outputs the same text that is in the crash report to start with not symbolicated. Am I doing something wrong Any help would be greatly appreciated thanks. iphone crash reports symbolicate..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone
http://stackoverflow.com/questions/2711297/underline-text-in-uilabel suggest UIWebView but it is obviously too heave a class for just text rendering. My thoughts was to figure out the start point and length of each string in each line. And draw a line under it accordingly. I meet problems at how to figure out.. of each string in each line. And draw a line under it accordingly. I meet problems at how to figure out the length and start point forthe string. Can anybody help me on this I try to use UILabel textRectForBounds limitedToNumberOfLines this should.. this should be the drawing bounding rect for the text right Then I have to work on the aligment How can I get the start point of each line when it is center justified and right justfied I am new here so thank in advance. iphone text uilabel..
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 Im rendering 2 pages each side of the page in focus so that the PDF image is ready to mask the layer before it starts drawing.Pages are destroyed again when they are 2 pages away from the focused page. Does anyone have any insights no matter.. 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 drawLayer CALayer layer inContext..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode app in landscape mode What's the best way to create an iPhone application that runs in landscape mode from the start regardless of the position of the device Both programmatically and using the Interface Builder. iphone objective c share..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events sometimes check something. The doc says that all background tasks VoIP audio location updates will be automatically restarted in background if the app was terminated. VoIP apps will be started in background automatically after bootup With abusing.. VoIP audio location updates will be automatically restarted in background if the app was terminated. VoIP apps will be started in background automatically after bootup With abusing this behavior you can make your app be looking like running forever.. app be looking like running forever . Register for one background process i.e. VoIP . This will cause your app to be restarted after termination. Now write some Task has to be finished code. According to Apple you have some time 5 seconds left to..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices and RestfulCoreData . Of course these are all working with Ruby on Rails which I am not tied to but it's a place to start. The main requirements I have for my solution are Any changes should be sent in the background without pausing the main..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request Remember to kick off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection NSURLConnection..
http://stackoverflow.com/questions/554997/cancel-a-uiview-animation to your end point. Set a very short duration and make sure you use the setAnimationBeginsFromCurrentState method to start from the current state. When you set it to YES the current animation is cut short. Looks something like this UIView beginAnimations..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c that what did you read which helped you get it iphone objective c cocoa memory share improve this question Let's start with retain and release autorelease is really just a special case once you understand the basic concepts. In Cocoa each..
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 with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void pointers to id which you continue to need to perform KVO correctly . And blocks... well block memory..
iPhone App ??#160;Add voice recognition? [closed] http://stackoverflow.com/questions/942312/iphone-app-add-voice-recognition voice recognition. I've seen big companies like Google etc implement this feature but I'm curious about doing it on a start up level. Anyone looked into this Are there any tools out there for us to do this iphone speech recognition voice recording..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 article on the subject and Apple's ChromaKey sample application which was only made available at WWDC 2011 . I start by configuring my AVAssetWriter adding an input and configuring a pixel buffer input. The following code is used to set.. feed it into my asset writer to be encoded CMTime currentTime CMTimeMakeWithSeconds NSDate date timeIntervalSinceDate startTime 120 if assetWriterPixelBufferInput appendPixelBuffer pixel_buffer withPresentationTime currentTime NSLog @ Problem appending..
Debugging App When Launched by Push Notification http://stackoverflow.com/questions/1239000/debugging-app-when-launched-by-push-notification Bring up the inspector for your app in executables. Click on the Debugging tab tab in the inspector. Uncheck Start executable after starting debugger Check the Wait for next launch push notification Now when you click debug from Xcode..
Is it possible to reset the privacy settings in iOS 6? [closed] http://stackoverflow.com/questions/12596165/is-it-possible-to-reset-the-privacy-settings-in-ios-6 make iOS forget it knows my app and ask me again iphone objective c ios6 ekeventkit share improve this question Start the Settings.app go to General Reset Reset Location Privacy. This resets the privacy settings for all apps but as far as..
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode one specifically called 'Leaks' and like a previous poster said the easiest way to run it is straight from Xcode run Start with Performance Tool Leaks. It seems very good at detecting memory leaks and was easy for a Non C Head like me to figure..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions recommends starting landscape only applications in Landscape Right mode see the HIG under User Experience Guidelines Start Instantly . What's not in the documentation A little background Everytime you try to load a different view controller other..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie NSParameterAssert writerInput NSParameterAssert videoWriter canAddInput writerInput videoWriter addInput writerInput 2 Start a session videoWriter startWriting videoWriter startSessionAtSourceTime ¦] 3 Write some samples Or you can use AVAssetWriterInputPixelBufferAdaptor...
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app . 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..
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started I'm old Beginner's knowledge of object oriented programming from going through simple Java and C# tutorials Head Start C# book and my wife's intro to OOP course that used Java I have managed to display a 3D textured model and spin it using..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events bgTask app beginBackgroundTaskWithExpirationHandler ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task and return immediately. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0.. bgTask app beginBackgroundTaskWithExpirationHandler ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ while 1 NSLog @ BGTime.. bgTask app beginBackgroundTaskWithExpirationHandler ^ app endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid Start the long running task dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ while 1 NSLog @ BGTime..
http://stackoverflow.com/questions/5214197/simple-iphone-motion-detect I think you have to use Core Motion. The good news is that it is not that hard to use for your problem domain. Start reading the Event Handling Guide especially the section Handling Processed Device Motion Data . If you are just interested..
UITextView ruled line background but wrong line height http://stackoverflow.com/questions/5375350/uitextview-ruled-line-background-but-wrong-line-height context UIColor colorWithRed 0.0f green 0.0f blue 0.0f alpha 0.2f .CGColor CGContextSetLineWidth context 1.0f Start a new Path CGContextBeginPath context Find the number of lines in our textView add a bit more height to draw lines in the..
How to invoke iPhone Maps for Directions with Current Location as Start Address http://stackoverflow.com/questions/576768/how-to-invoke-iphone-maps-for-directions-with-current-location-as-start-address to invoke iPhone Maps for Directions with Current Location as Start Address I know it's possible to start the iPhone maps application by calling openURL on a google maps URL with parameters..
Make movie file with picture Array and song file, using AVAsset http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset removeItemAtPath NSString stringWithFormat @ @ @ documentsDirectoryPath tString error nil NSLog @ Write Started NSError error nil AVAssetWriter videoWriter AVAssetWriter alloc initWithURL NSURL fileURLWithPath path fileType AVFileTypeMPEG4.. YES videoWriter addInput audioWriterInput videoWriter addInput videoWriterInput Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer.. printf error appending image d times d n frameCount j frameCount Finish the session videoWriterInput markAsFinished Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero CVPixelBufferRef buffer NULL Write all..
http://stackoverflow.com/questions/706344/lock-unlock-events-iphone delegate void applicationWillResignActive UIApplication application NSLog @ STATUS Application will Resign Active Start checking the accelerometer while we are in the background UIAccelerometer sharedAccelerometer setDelegate self UIAccelerometer..
Customize the MKAnnotationView callout http://stackoverflow.com/questions/8018841/customize-the-mkannotationview-callout some UML from a forked project This is a big hack but also the cleanest way I've seen to implement custom annotations. Start with a NSObject Content class which has a coordinate the class of the callout view to use in the UML is AnnotationView but..
http://stackoverflow.com/questions/9975562/how-to-pause-play-nstimer me EDIT To be honest my actual code is this IBAction clicked id sender if startStop.titleLabel.text isEqualToString @ Start startStop setTitle @ Pause forState UIControlStateNormal startStop setTitleColor UIColor redColor forState UIControlStateNormal.. setTitleColor UIColor colorWithRed 0 255 green 0 255 blue 255 255 alpha 1.0 forState UIControlStateNormal pauseStart NSDate dateWithTimeIntervalSinceNow 0 retain previousFireDate timer fireDate retain timer setFireDate NSDate distantFuture.. UIControlStateNormal startStop setTitleColor UIColor redColor forState UIControlStateNormal float pauseTime 1 pauseStart timeIntervalSinceNow timer setFireDate NSDate dateWithTimeInterval pauseTime sinceDate previousFireDate pauseStart release..
cocos2d 2.0-rc2: end the director and restart http://stackoverflow.com/questions/11037134/cocos2d-2-0-rc2-end-the-director-and-restart CCLOG @ Retina Display Not supported director_ runWithScene HelloWorldLayer scene RUN THE SCENE else THERE IS A SCENE START SINCE IT WAS STOPPED AND REPLACE TO RESTART director_ startAnimation director_ replaceScene HelloWorldLayer scene director_.. runWithScene HelloWorldLayer scene RUN THE SCENE else THERE IS A SCENE START SINCE IT WAS STOPPED AND REPLACE TO RESTART director_ startAnimation director_ replaceScene HelloWorldLayer scene director_ setDelegate id CCDirectorDelegate UIApplication..
http://stackoverflow.com/questions/15062902/core-bluetooth-and-backgrounding-detection-of-a-device-and-triggering-an-action it is running in the background. Consider a running app that needs to monitor heart rate real time. There is a clear START and STOP to this model. The user STARTS their run in the App. While the run is active the App reads heart rate information.. a running app that needs to monitor heart rate real time. There is a clear START and STOP to this model. The user STARTS their run in the App. While the run is active the App reads heart rate information until the run is completed or STOPPED...
Core-Data iPhone: could not locate an NSManagedObjectModel http://stackoverflow.com/questions/1632497/core-data-iphone-could-not-locate-an-nsmanagedobjectmodel inside of the RootViewController's viewDidLoad. It crashes right here void viewDidLoad super viewDidLoad NSLog @ 1 START viewDidLoad RootViewController self.title @ Books Set up the edit and add buttons. self.navigationItem.leftBarButtonItem..
record input coming from bluetooth headset in iPhone http://stackoverflow.com/questions/18226255/record-input-coming-from-bluetooth-headset-in-iphone sizeof allowBluetoothInput allowBluetoothInput CODE FOR AUDIO RECORDER START AND STOP IBAction Record id sender UIButton btn UIButton sender if btn isSelected audioRecorder stop btn setSelected NO..
How to reloadData in tableView with didSelectedRowAtIndexPath and call group of methods in it http://stackoverflow.com/questions/19952691/how-to-reloaddata-in-tableview-with-didselectedrowatindexpath-and-call-group-of id initWithStyle UITableViewStyle style self super initWithStyle style if self return self CONNECTIONS METHOD START void connection NSURLConnection connection didReceiveResponse NSURLResponse response _receivedData setLength 0 void connection.. NSString dataString NSString alloc initWithData _receivedData encoding NSUTF8StringEncoding XMLPARSER PART START NSString testXMLString NSString stringWithContentsOfURL myURL usedEncoding nil error nil Parse the XML into a dictionary.. reloadData default Connection methods END void viewDidLoad super viewDidLoad _didDataLoaded FALSE XMLPARSER PART START START Shit with connection NSString params @ request_params NSURL url NSURL URLWithString @ my URL NSMutableURLRequest..
http://stackoverflow.com/questions/3041256/basic-iphone-timer-example the apple documentation for the NSTimer. I am trying to implement 2 timers on the same view that each have 3 buttons START STOP RESET . The first timer counts down from 2 minutes and then beeps. The second timer counts up from 00 00 indefinitely...
How can I programmatically create an iCal event in the default calendar? http://stackoverflow.com/questions/3423486/how-can-i-programmatically-create-an-ical-event-in-the-default-calendar state accordingly. Here is the code by @ codeburger void initCalendar An array of 1 dictionary object containing START and END values. NSMutableArray pvDict NSMutableArray alloc initWithContentsOfURL NSURL URLWithString PV_URL Check if the..
Apple In app purchase StoreKit error http://stackoverflow.com/questions/4087658/apple-in-app-purchase-storekit-error the same time observer print out another error Can't connect to the iTunes Store . my in app purchase logic flow APP START void requestProductDataWithSet NSSet _set SKProductsRequest request SKProductsRequest alloc initWithProductIdentifiers _set..
GeneralBlock-56 memory leak when calling loadRequest in UIWebView http://stackoverflow.com/questions/5470121/generalblock-56-memory-leak-when-calling-loadrequest-in-uiwebview used to reproduce this were iPad 4.3 Simulator iPad 2 with iOS 4.3.1 Notes The stack trace is as below STACK TRACE START 0 CFNetwork createCanonicalURL 1 CFNetwork HTTPProtocol _createMutableCanonicalRequest __CFAllocator const _CFURLRequest..
AVAudioRecorder Record method returns NO at random times http://stackoverflow.com/questions/9706020/avaudiorecorder-record-method-returns-no-at-random-times startRecording if isRecording isRecording YES BOOL recordingSucess audioRecorder record if recordingSucess NSLog @ WE STARTED THE RECORDING else NSLog @ WE DID NOT START THE RECORDING Start the timer recordTiming NSDate date timeCheck NSTimer scheduledTimerWithTimeInterval.. BOOL recordingSucess audioRecorder record if recordingSucess NSLog @ WE STARTED THE RECORDING else NSLog @ WE DID NOT START THE RECORDING Start the timer recordTiming NSDate date timeCheck NSTimer scheduledTimerWithTimeInterval 1.0f target self..
How do I start playing audio when in silent mode & locked in iOS 6? http://stackoverflow.com/questions/9725192/how-do-i-start-playing-audio-when-in-silent-mode-locked-in-ios-6 in silent mode locked in iOS 6 End user process Open app Switch on 'Silent Mode'. Press 'Lock button' App can still START playing a sound after hours have passed not playing any audio in the interim. Apps that do this A lot of alarm apps have..
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