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2014/10/15 ¤U¤È 10:13:15
iphone Programming Glossary: releasesHow to restart app if it unexpectedly shutdown http://stackoverflow.com/questions/10395142/how-to-restart-app-if-it-unexpectedly-shutdown there is memory pressure and your application is terminated as a result. However terminating the application also releases all of its sockets including the one used to maintain the VoIP service connection. Therefore when the application is launched..
Xcode 5 and iOS 7: Architecture and Valid architectures http://stackoverflow.com/questions/18913906/xcode-5-and-ios-7-architecture-and-valid-architectures with versions of iOS prior to 6.0 Adjust your Architectures build setting to not include arm64 in order to deploy to releases prior to iOS 6.0. So changed architectures to Standard no 64bit . I compiles runs but I do not really understand what just..
http://stackoverflow.com/questions/2156015/remove-all-subviews elsewhere. From Apple's documentation on removeFromSuperview If the receiver ™s superview is not nil this method releases the receiver. If you plan to reuse the view be sure to retain it before calling this method and be sure to release it as..
Animating a custom property of CALayer subclass http://stackoverflow.com/questions/2395382/animating-a-custom-property-of-calayer-subclass iphone core animation calayer share improve this question Yes it's possible only in the latest Core Animation releases though I believe i.e. iPhone 3.0 and OS X 10.6 . Make your property dynamic so that CA implements the accessors for you..
Multiple MKOverlays on a MKMapView lead to memory warnings http://stackoverflow.com/questions/3370328/multiple-mkoverlays-on-a-mkmapview-lead-to-memory-warnings overlay autorelease circleView.lineWidth 1.0 circleView.strokeColor UIColor redColor return circleView Code that releases the overlay cache void dealloc overlayCache release mapView release super dealloc iphone memory management mapkit mkmapview..
Check whether or not the current thread is the main thread http://stackoverflow.com/questions/3546539/check-whether-or-not-the-current-thread-is-the-main-thread
Repeating NSTimer, weak reference, owning reference or iVar? http://stackoverflow.com/questions/4945028/repeating-nstimer-weak-reference-owning-reference-or-ivar repeats YES I understand that when created the runloop takes ownership of the NSTimer and ultimately stops removes and releases the NSTimer when ti invalidate is called. By virtue of the fact that we need to access the NSTimer in more than one method..
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 advantage of another undocumented feature and as Jason McCreary points out below it may not work reliably in future releases. Update for iOS 6 Originally Maps used Google maps but now Apple and Google have separate maps apps. 1 If you wish to route..
Do I need to release xib resources? http://stackoverflow.com/questions/61838/do-i-need-to-release-xib-resources for example if you have a view controller that loads a view from a nib file but on request say under memory pressure releases it with the expectation that it can be reloaded if the view is needed again . In this situation you want to make sure that..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c everyone is playing along and retaining releasing according to the rules when one piece of code retains and then releases the object any other piece of code also referencing the object will be unaffected. What can sometimes be confusing is knowing..
Correct Singleton Pattern Objective C (iOS)? http://stackoverflow.com/questions/7598820/correct-singleton-pattern-objective-c-ios itself to refactoring to support non singleton usage modes. Pretty much every singleton that survives beyond a few releases will eventually be refactored into a non singleton form. Some like NSFileManager continue to support a singleton mode while..
Retain Cycles: Why is that such a bad thing? http://stackoverflow.com/questions/791322/retain-cycles-why-is-that-such-a-bad-thing B and so B would be deallocated. A would be deallocated as soon as it's other owner I guess there must be someone releases it. Or does this problem only apply in a case where A does not create B but just holds a strong reference to it through..
What's the difference between sending -release or -drain to an Autorelease Pool? http://stackoverflow.com/questions/797419/whats-the-difference-between-sending-release-or-drain-to-an-autorelease-pool not release the NSAutoreleasePool are not correct. The documentation for NSAutoreleasePool clearly says that drain releases and thus destroys the NSAutoreleasePool. drain is a replacement for using release for NSAutoreleasePool objects the only..
Most efficient way to draw part of an image in iOS http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios What's the medium size OpenGL on iOS usually limits maximum texture size to 1024x1024 pixels maybe larger in recent releases . If your image is larger than this it will not work or performance will be degraded greatly I think UIImageView is optimized..
How do I get the CoreData Debug argument to output to the console? http://stackoverflow.com/questions/822906/how-do-i-get-the-coredata-debug-argument-to-output-to-the-console than the console Has anyone else had success with this argument UPDATE Apple has since fixed the output bug with newer releases of XCode however to be clear on the final solution The arguments are two separate arguments and should be entered in the..
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 easier than your old code. It is not garbage collection. It has no GC runtime cost. The compiler inserts retains and releases in all the places you should have anyway. But it's smarter than you and can optimize out the ones that aren't actually needed..
Setting a background image for a tabbar http://stackoverflow.com/questions/8909379/setting-a-background-image-for-a-tabbar programatically but I'll settle for the IB solution for now. I just can't seem to get it working for any previous releases. NOTE my TabBar is only on my RootViewController which is the main screen of my app. Ideally if I could get the code working..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud iPhoneDeveloperTips.com UIImage 's imageNamed method used to leak so it was best avoided but has been fixed in recent releases. I'd like to understand the caching algorithm better in order to make a reasoned decision about where I can trust the system..
Does UIView's addSubview really retain the view? http://stackoverflow.com/questions/937767/does-uiviews-addsubview-really-retain-the-view alloc initWithNibName @ TestView bundle NSBundle mainBundle You need to autorelease to balance out your retain releases by self.testViewController TestViewController alloc initWithNibName @ TestView bundle NSBundle mainBundle autorelease So..
Share data between two or more iPhone applications http://stackoverflow.com/questions/9425706/share-data-between-two-or-more-iphone-applications apps. The idea was that if you couldn't get at another app's data you couldn't do anything bad to that app. In recent releases of IOS they've loosened that up a bit. For example the iOS programming guide now has a section on passing data between apps..
iPhone: why isn't drawRect getting called? http://stackoverflow.com/questions/1053761/iphone-why-isnt-drawrect-getting-called bundle nibBundleOrNil Custom initialization self.view setNeedsDisplay return self void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
Loop an UIScrollView [duplicate] http://stackoverflow.com/questions/1383849/loop-an-uiscrollview CGRectMake WIDTH_OF_IMAGE 0 WIDTH_OF_IMAGE HEIGHT_OF_IMAGE animated NO void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
Using Cocoa Touch Tutorial: Extract Address Book Address Values on iPhone OS http://stackoverflow.com/questions/1994870/using-cocoa-touch-tutorial-extract-address-book-address-values-on-iphone-os YES for supported orientations return interfaceOrientation UIInterfaceOrientationPortrait void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
How to implement didReceiveMemoryWarning? http://stackoverflow.com/questions/2430728/how-to-implement-didreceivememorywarning
How to start a project with both outputs iPhone & iPad? http://stackoverflow.com/questions/2657968/how-to-start-a-project-with-both-outputs-iphone-ipad does not infringe any agreements that me and Apple are bound to as my question is regarding those already public Releases. I just stated that on my Operating System I'm running the Xcode 3.2.3 that is all. iphone xcode ipad project share improve..
Memory Troubles with UIImagePicker http://stackoverflow.com/questions/2921560/memory-troubles-with-uiimagepicker of cached data and kills the biggest piece the image associated with each entry. Thusly void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning UIAlertView alert UIAlertView alloc initWithTitle..
How do I hide iAd banners when no ads are being served? http://stackoverflow.com/questions/3123259/how-do-i-hide-iad-banners-when-no-ads-are-being-served self presentModalViewController controller animated YES controller release void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc. that aren't in..
Dismiss popover using UIbutton http://stackoverflow.com/questions/3565968/dismiss-popover-using-uibutton to allow any orientation. return YES #pragma mark #pragma mark Memory Management void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc. that aren't in.. 150.0 myPopoverController setDelegate self #pragma mark #pragma mark Memory management void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Relinquish ownership any cached data images etc...
Parsing XML code on iphone SDK http://stackoverflow.com/questions/3616447/parsing-xml-code-on-iphone-sdk Create and push another view controller. #pragma mark #pragma mark Memory management void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Relinquish ownership any cached data images etc that..
iphone:How to stream and play youtube video with in application using MPMoviePlayer? http://stackoverflow.com/questions/4459975/iphonehow-to-stream-and-play-youtube-video-with-in-application-using-mpmoviepla YES for supported orientations return interfaceOrientation UIInterfaceOrientationPortrait void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
How to delete a row from UITableView http://stackoverflow.com/questions/4497925/how-to-delete-a-row-from-uitableview animated YES detailViewController release #pragma mark #pragma mark Memory management void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Relinquish ownership any cached data images etc that..
http://stackoverflow.com/questions/5019909/iphone-tableview-search-xml searching NO letUserSelectRow YES void didReceiveMemoryWarning super didReceiveMemoryWarning Releases the view if it doesn't have a superview Release anything that's not essential such as cached data #pragma mark Table view..
how to enable text input in UITextField which is in UIActionSheet? http://stackoverflow.com/questions/5089437/how-to-enable-text-input-in-uitextfield-which-is-in-uiactionsheet TextField resignFirstResponder IBAction DismissClicked id sender self removePopUp void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
Embedding YouTube videos on iOS http://stackoverflow.com/questions/5117617/embedding-youtube-videos-on-ios loadHTMLString html baseURL nil self.view addSubview videoView videoView release void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
http://stackoverflow.com/questions/5988590/how-to-calculate-the-current-speed-and-average-speed-of-user-travelling-from-cur kCLLocationAccuracyBestForNavigation locationManager startUpdatingLocation void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc. that aren't in..
MKPinannotation detail disclosure button - present new view http://stackoverflow.com/questions/6195774/mkpinannotation-detail-disclosure-button-present-new-view YES for supported orientations return interfaceOrientation UIInterfaceOrientationPortrait void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc. that aren't in.. nibBundleOrNil if self Custom initialization return self void dealloc super dealloc void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
Optimizing Code for MKMapView - Large Number of Annotations http://stackoverflow.com/questions/7921106/optimizing-code-for-mkmapview-large-number-of-annotations mapLocations release detail release self.failedLoad nil failedLoad release super dealloc void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
How do I install this script into PhoneGap for iOS http://stackoverflow.com/questions/8718411/how-do-i-install-this-script-into-phonegap-for-ios @selector keyboardWillShow name UIKeyboardWillShowNotification object nil return self void didReceiveMemoryWarning Releases the view if it doesn't have a superview. super didReceiveMemoryWarning Release any cached data images etc that aren't in..
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