2014/10/15 下午 10:11:00
iphone Programming Glossary: leakMemory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode leak detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak.. detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially interested in tools that apply to the iPhone SDK. currently my favorite platfrom..
Difference between [NSMutableArray array] vs [[NSMutableArray alloc] init] http://stackoverflow.com/questions/5423211/difference-between-nsmutablearray-array-vs-nsmutablearray-alloc-init function I returned the array created with alloc I had to autorelease that array because of memory leak problems. Now using the first declaration I don't need to release anything. Thanks iphone objective.. the first declaration I don't need to release anything. Thanks iphone objective c ios ipad memory leaks share improve this question Because in the beginning i was declaring all my arrays with alloc and.. function i returned the array created with alloc i had to autorelease that array because memory leak problems. Now using the first declaration i don't need to release anything That is exactly correct when..
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
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c to call release on the object when I'm done with it. If I don't there will be a memory leak. Example of object creation NSString s NSString alloc init Ref count is 1 s retain Ref count is 2..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector.. is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString.. I understand the compiler can't check if the selector exists or not but why would that cause a leak And how can I change my code so that I don't get this warning anymore iphone objective c ios automatic..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c addObject cardIdObject cardIdObject release So this code executes and does not seem to leak according to the Leaks performance tool . However when stepping through the code at no point does CardIdObject..
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 it the same wrong on both sides. But if it's mixed ARC non ARC then there's a mismatch. ARC will leak memory during ObjC exception throws. An ObjC exception should be very close in time to the termination.. is fixable using fobjc arc exceptions but it incurs the penalties discussed below ARC will not leak memory during ObjC or C exception throws in ObjC code but this is at the cost of both time and space..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud for example or this article on 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..
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode leak detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially interested in tools that apply to.. leak detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially interested in tools that apply to the iPhone SDK. currently my favorite platfrom for hobby programming projects Documentations tutorials..
Difference between [NSMutableArray array] vs [[NSMutableArray alloc] init] http://stackoverflow.com/questions/5423211/difference-between-nsmutablearray-array-vs-nsmutablearray-alloc-init all my arrays with alloc and if in the end of a certain function I returned the array created with alloc I had to autorelease that array because of memory leak problems. Now using the first declaration I don't need to release anything. Thanks iphone objective c ios ipad memory leaks share improve this question Because.. that array because of memory leak problems. Now using the first declaration I don't need to release anything. Thanks iphone objective c ios ipad memory leaks share improve this question Because in the beginning i was declaring all my arrays with alloc and if in the end of a certain function i returned the array.. all my arrays with alloc and if in the end of a certain function i returned the array created with alloc i had to autorelease that array because memory leak problems. Now using the first declaration i don't need to release anything That is exactly correct when you vend an object. But in other cases when you create an..
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
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c with an init method. In either of these cases it is my responsibility to call release on the object when I'm done with it. If I don't there will be a memory leak. Example of object creation NSString s NSString alloc init Ref count is 1 s retain Ref count is 2 silly to do this after init s release Ref count is back..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's.. may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString @ someMethod Why do I get this warning I understand the.. NSSelectorFromString @ someMethod Why do I get this warning I understand the compiler can't check if the selector exists or not but why would that cause a leak And how can I change my code so that I don't get this warning anymore iphone objective c ios automatic ref counting share improve this question Solution The..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c NSNumber alloc initWithInt int self.currentCard cardId viewedCardsArray addObject cardIdObject cardIdObject release So this code executes and does not seem to leak according to the Leaks performance tool . However when stepping through the code at no point does CardIdObject appear in viewedCardsArray . Looking through SO I..
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 it's all ARC code then it doesn't matter because it will do it the same wrong on both sides. But if it's mixed ARC non ARC then there's a mismatch. ARC will leak memory during ObjC exception throws. An ObjC exception should be very close in time to the termination of your program. If you're catching a significant number.. number of ObjC exceptions you're using them incorrectly. This is fixable using fobjc arc exceptions but it incurs the penalties discussed below ARC will not leak memory during ObjC or C exception throws in ObjC code but this is at the cost of both time and space performance. This is yet another in a long list of reasons..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud good especially when rendering UITableView s. See this SO question for example or this article on 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..
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode leak detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially.. leak detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially interested in tools that apply to the iPhone SDK. currently my favorite platfrom for hobby programming..
iPhone - dealloc - Release vs. nil http://stackoverflow.com/questions/1458178/iphone-dealloc-release-vs-nil
Break on EXC_BAD_ACCESS in XCode? http://stackoverflow.com/questions/1622079/break-on-exc-bad-access-in-xcode the property it automatically retained it for me and thus I should release it from within init so that I don't have a leak. I'm thoroughly confused about how this works and all the guides and Stackoverflow questions I've read only confuse me more.. sure this is only in your debug code and not your distribution code. Because nothing is ever released your app will leak and leak and leak. To remind me to do this I put this log in my appdelegate if getenv NSZombieEnabled getenv NSAutoreleaseFreedObjectCheckEnabled.. is only in your debug code and not your distribution code. Because nothing is ever released your app will leak and leak and leak. To remind me to do this I put this log in my appdelegate if getenv NSZombieEnabled getenv NSAutoreleaseFreedObjectCheckEnabled..
Re-Apply currency formatting to a UITextField on a change event http://stackoverflow.com/questions/2388448/re-apply-currency-formatting-to-a-uitextfield-on-a-change-event number return NO we return NO because we have manually edited the textField contents. Edit 1 fixed memory leak. Edit 2 updated for Umka handling of 0 after decimal separator. Code is updated for ARC as well. share improve this answer..
Difference between [NSMutableArray array] vs [[NSMutableArray alloc] init] http://stackoverflow.com/questions/5423211/difference-between-nsmutablearray-array-vs-nsmutablearray-alloc-init end of a certain function I returned the array created with alloc I had to autorelease that array because of memory leak problems. Now using the first declaration I don't need to release anything. Thanks iphone objective c ios ipad memory leaks.. problems. Now using the first declaration I don't need to release anything. Thanks iphone objective c ios ipad memory leaks share improve this question Because in the beginning i was declaring all my arrays with alloc and if in the end of.. the end of a certain function i returned the array created with alloc i had to autorelease that array because memory leak problems. Now using the first declaration i don't need to release anything That is exactly correct when you vend an object...
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
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c cases it is my responsibility to call release on the object when I'm done with it. If I don't there will be a memory leak. Example of object creation NSString s NSString alloc init Ref count is 1 s retain Ref count is 2 silly to do this after..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown may cause a leak because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak.. because its selector is unknown I'm getting the following warning by the ARC compiler performSelector may cause a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString @ someMethod Why.. do I get this warning I understand the compiler can't check if the selector exists or not but why would that cause a leak And how can I change my code so that I don't get this warning anymore iphone objective c ios automatic ref counting share..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c cardId viewedCardsArray addObject cardIdObject cardIdObject release So this code executes and does not seem to leak according to the Leaks performance tool . However when stepping through the code at no point does CardIdObject appear in..
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 because it will do it the same wrong on both sides. But if it's mixed ARC non ARC then there's a mismatch. ARC will leak memory during ObjC exception throws. An ObjC exception should be very close in time to the termination of your program... them incorrectly. This is fixable using fobjc arc exceptions but it incurs the penalties discussed below ARC will not leak memory during ObjC or C exception throws in ObjC code but this is at the cost of both time and space performance. This is..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud s. See this SO question for example or this article on 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..
Another iPhone - CGBitmapContextCreateImage Leak http://stackoverflow.com/questions/1434714/another-iphone-cgbitmapcontextcreateimage-leak iPhone CGBitmapContextCreateImage Leak Like in this post iPhone UIImage Leak ObjectAlloc Building I'm having a similar problem. The pointer from the malloc in.. iPhone CGBitmapContextCreateImage Leak Like in this post iPhone UIImage Leak ObjectAlloc Building I'm having a similar problem. The pointer from the malloc in create_bitmap_data_provider is never freed...
Running NSTimer Within an NSThread? http://stackoverflow.com/questions/2083737/running-nstimer-within-an-nsthread I am getting leak at timerNSPool release GeneralBlock 16 Malloc WebCore WKSetCurrentGraphicsContext What causing the Leak is updating UI from a secondary thread timeLabel.text NSString stringWithFormat @ d timeDuration However i added another..
Memory leak tool tells me zero leaks but memory footprint keeps rising http://stackoverflow.com/questions/2339279/memory-leak-tool-tells-me-zero-leaks-but-memory-footprint-keeps-rising memory footprint keeps rising I'm running through some memory profiling for my application in SDK 3.2 and I used the 'Leak' profiler to find all my memory leaks and I plugged all of them up. This is a scrollView navigationController application.. which goes to a new view of tiles and so on I can go many levels deep and come all the way back to the top and the 'Leak' profiler says everything is cool. However if I watch the memory footprint in the 'ObjectAlloc' profiler the memory footprint.. use. When you do a free the C runtime simply marks it as deallocated but doesn't return it back to the OS. Thus if the Leak Tool is reading OS level statistics rather than C runtime statistics the Leak tool will fail to report a corresponding decrease..
iPhone - Memory Leak - NSData dataWithContentsOfUrl & UIWebView http://stackoverflow.com/questions/280053/iphone-memory-leak-nsdata-datawithcontentsofurl-uiwebview Memory Leak NSData dataWithContentsOfUrl UIWebView Please help Have been staring at this for 12 hours and have looked online and can't..
In CocoaTouch (iPhone OS) how do I find/eliminate leaks that the Instruments Leak tool doesn't find? http://stackoverflow.com/questions/281764/in-cocoatouch-iphone-os-how-do-i-find-eliminate-leaks-that-the-instruments-lea CocoaTouch iPhone OS how do I find eliminate leaks that the Instruments Leak tool doesn't find I have an iPhone app that is running great in the simulator. It responds well to the memory warnings.. quite goes as low as it was. However the addition is usually only something in the range of 1000 2000 bytes. So while Leaks shows me no leaks I suspect there is an issue somewhere. I've also looked at all of the objects I'm allocating and all..
AVAudioPlayer Memory Leak - Media Player Framework http://stackoverflow.com/questions/2840637/avaudioplayer-memory-leak-media-player-framework Memory Leak Media Player Framework I am using AVAudioPlayer object to play an audio. I created an audioPlayer object initially. I play.. animation starts I play the audio and pause the audio when the animation is finished. I initially found three memory Leaks using Instruments. The responsible caller mentioned was RegisterEmbedCodecs . After suggestion from a ahmet emrah in this..
http://stackoverflow.com/questions/3484022/memory-leak-for-uiimageview .xib file add an UIImageView set an image for it a 200x100 image . Launch the program by Run Run with performance tool Leak And there are two leaks reported Leaked Object # Address Size Responsible Library Responsible Frame Malloc 128 Bytes 0x72186d0.. for it a 200x100 image . Launch the program by Run Run with performance tool Leak And there are two leaks reported Leaked Object # Address Size Responsible Library Responsible Frame Malloc 128 Bytes 0x72186d0 128 ImageIO BuildPluginListPurple..
http://stackoverflow.com/questions/478242/leak-generalblock-3584 GeneralBlock 3584 When i try to check leaks of my iPhone App using Instruments everything is just fine. Same App on actual.. problem Apple is silent unfortunately . iphone cocoa touch memory leaks instruments share improve this question Leak detection tools can often yield false positives especially in underlying system libraries. I am familiar with these leaked..
http://stackoverflow.com/questions/4914853/help-fix-memory-leak-release Fix Memory Leak release #import VTM_AViPodReaderViewController.h #import AudioToolbox AudioToolbox.h for the core audio constants #define.. be preferred to treat this as a C level struct and NULL is the C way and nil is Objective C. I've run this code though Leaks and I am not seeing the major leaks that I saw before. I do still see a leak of 128 bytes. I cannot trace it back to any..
MkMapView rame et fuite mémoire apple http://stackoverflow.com/questions/5935243/mkmapview-rame-et-fuite-memoire-apple Implemented via Interface Builder In a separate view which contained the MkMapView In all cases the result is the same Leaks are Malloc Malloc _NSCFDictionary 16 Bytes 16 Bytes For the 3 library is responsible for GMM and the frame is responsible.. shouldn't ultimately be a big problem. In fact the same question has been asked here several times MKMapView Memory Leak in iPhone Application memory leak discovered MKMapView Is MKMapView leaky Apparently one solution is to create a single.. pose pas grande probl癡me en fin compte. En fait on a d矇ja demand矇 la m礙me question plusiers fois ici MKMapView Memory Leak in iPhone Application memory leak discovered MKMapView Is MKMapView leaky Apparement une solution c'est de cr矇er une seule..
UIImagePickerController Memory Leak http://stackoverflow.com/questions/6554225/uiimagepickercontroller-memory-leak Memory Leak I am seeing a huge memory leak when using UIImagePickerController in my iPhone app. I am using standard code from the apple..
http://stackoverflow.com/questions/7441913/memory-leak-in-line-of-code Leak In line of code My app is working fine but when I run instrument for checking for leaks it shows me a leak at this line..
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