{"id":4726,"date":"2014-03-30T15:00:33","date_gmt":"2014-03-30T15:00:33","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-nszombieenabled-collection-of-common-programming-errors\/"},"modified":"2014-03-30T15:00:33","modified_gmt":"2014-03-30T15:00:33","slug":"problem-about-nszombieenabled-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-nszombieenabled-collection-of-common-programming-errors\/","title":{"rendered":"problem about nszombieenabled-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/15e23812809e28da48fb9e0204142aaf?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\ntom<br \/>\niphone memory-management release nszombieenabled<br \/>\nWith NSZombieEnabled turned on it will provide some guard against the EXC_BAD_ACCESS issues happening at runtime. I am doing dual-diligence to make sure no\/little memory leaks, but I might over releasing so having NSZombieEnabled turned on would help prevent that, am I right? Or with NSZombieEnabled turned on, would all memory releasing operations be translated into no-op? It&#8217;ll be a big problem is that&#8217;s the case.<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/41761702e39181c8e142a1bb13a3c727?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nKazuki Sakamoto<br \/>\nios background automatic-ref-counting exc-bad-access nszombieenabled<br \/>\ni&#8217;m currently working on an ios project with some people, one of us decided to use ARC in a part of the app.Unfotunatly, we are currently experiencing some crashes when coming back from background.Here are the steps we follow to crash the application, we perform them with the ios-simulator:start the application get on a ViewController A (coded with ARC) get on a ViewController B (not coded with ARC -to be honest i don&#8217;t know if it&#8217;s relevant-) put the application in background. simulate a memory<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/70ac0eebe78d4bf24c95211f37e6c4a7?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\ndhomes<br \/>\nuitableview uitableviewcontroller exc-bad-access ios6 nszombieenabled<br \/>\ni&#8217;m starting to update my app, which has been available and working all the way from iOS 2.2.1 to 5 (I still manual memory management on it, if that matters).Now, when I run it on iOS6 GM I&#8217;m getting EXC_BAD_ACCESS,when I run the project with Zombie Object enabled,I get:-[UITableTextAccessibilityElement accessibilityContainer]: message sent to deallocated instance 0xb3cacff0wtf?has anyone run into the same problem? how did you solve it?any help is appreciated<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/5df8eda6698c5d638bdf5a187f38f90d?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nR. Dewi<br \/>\nxcode memory-management ios-4.2 nszombie nszombieenabled<br \/>\ni have some problem in memory management, and then i try to fix it using intrument tool.Base on mark j video on you tubeabout using NSZombieEnabled in intrument, i try to do like that. The problem is i never find a checkbox to set NSZombieEnabled active in my instrument. In this case i use xcode 3.2.5 and still on IOS 4.2.This is the screenshot from the instrument that show no one check box for NSZombieEnabled activated : am i doing something wrong?? help me pleasethank you<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/c6fb4abfbfa03496ee934cf3646cda6b?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nHailei<br \/>\nios exc-bad-access nszombie nszombieenabled<br \/>\nWe have a EXC_BAD_ACCESS crash in our iOS application but it happens only when certain external accessory is connected. Unfortunately this accessory doesn&#8217;t allow debugging (no pass-through connection). Is it possible to permanently enable NSZombieEnabled for the application so it&#8217;s active even when the application is started directly on the device?<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/ca81fe234274312e43feb2e81dc12770?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nThromordyn<br \/>\niphone objective-c mpmediaitem nszombieenabled<br \/>\nRemoved release statements. Some of them seemed to be okay, but that was probably just because other things were exploding first.- (void)handleNowPlayingItemChanged:(id)notification {MPMediaItem *item = self.musicPlayer.nowPlayingItem;NSString *title = [item valueForProperty:MPMediaItemPropertyTitle];NSNumber *duration = [itemvalueForProperty:MPMediaItemPropertyPlaybackDuration];float totalTime = [duration floatValue];progressSlider.maximumValue = totalTime;CGSize artworkImageViewSize = self.alb<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/771d6811baa1b117dd8a5ff0708fc66b?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nYar<br \/>\nios nszombieenabled<br \/>\nWhen I run with a connected iPad, I can enable NSZombieEnabled via &#8220;Enable Zombie Objects&#8221; or by passing NSZombieEnabled as an Environment Variable. However, I cannot seem to produce builds (i.e., the kind you archive and distribute ad-hoc) with NSZombie enabled.How can I enable NSZombieEnabled for archive release builds?The code I am using to determine if it&#8217;s enabled from within the code is: (getenv(&#8220;NSZombieEnabled&#8221;) || getenv(&#8220;NSAutoreleaseFreedObjectCheckEnabled&#8221;))<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/c962a24c93c96c706db62a2a5eafa7b9?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nttran<br \/>\nios objective-c zombie-process nszombieenabled<br \/>\nI am getting this error from the console[Not A Type _cfTypeID]: message sent to deallocated instance I also enalbe zombie in Diagonotics but can not get any hint what the error is. My xcode is hung and throwing me the message below :and zombie shows me nothing just likewhat is the error about and how can i use zombie in a proper way to catch the error..<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/290aabcb6c2ee989d85d8dae0e9ad0fa?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nEmptyStack<br \/>\niphone objective-c ios xcode nszombieenabled<br \/>\nMy application is crashing when I use popViewController. When using NSZombie I get the following:2011-07-15 13:20:03.334 Question[27412:207] *** -[CFString release]: message sent to deallocated instance 0x4c8a090I&#8217;m not entirely sure how to interpret this or how to find the instance being referred to&#8230;The app crashes when I add the following line:-(void) finishQuestionnaire:(id)sender{\/\/go back to main manual[self.navigationController popViewControllerAnimated:YES]; }I don&#8217;t think this is the p<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/fb6c69436d239304e7c44db78ea2ea36?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nThomas Clayson<br \/>\nipad crash nszombieenabled<br \/>\nWhen I push a certain view controller, then go pop it and then repeat a seemingly random number of times the app eventually crashes with the error EXC_BAD_ACCESS.This I can reliably replicate EVERY TIME. It happens mostly the second time I pop the view controller, but sometimes it can be the third or fourth.So I decided to set NSZombieEnabled to see what the problem was.But with this enabled the crash can&#8217;t be replicated. All thats changed is I check the box next to &#8220;NSZombieEnabled&#8221; in my activ<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/a93911546c4709d93decaeb71ae5352d?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nsoemarko<br \/>\nios core-data nszombieenabled<br \/>\nSo, I have this problem, my app plays audio, and it stored the playback position whenever paused is triggered, either by tapping a button, or selecting other track. When the latter happen, I programatically call pause: and set 0.5 sec delay before start playing the next track, this is where the problem occurs.The code is dead simple.NSInteger x = [_player currentPlaybackTime]; if (x &amp;&amp; x &gt; 0) {[_nowPlaying setValue:[NSNumber numberWithInt:x] forKey:@&#8221;pausedAt&#8221;];NSError *ctxErr;if (![_<\/li>\n<\/ul>\n<p>Web site is in building<\/p>\n","protected":false},"excerpt":{"rendered":"<p>tom iphone memory-management release nszombieenabled With NSZombieEnabled turned on it will provide some guard against the EXC_BAD_ACCESS issues happening at runtime. I am doing dual-diligence to make sure no\/little memory leaks, but I might over releasing so having NSZombieEnabled turned on would help prevent that, am I right? Or with NSZombieEnabled turned on, would all [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4726","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4726","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=4726"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4726\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=4726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=4726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=4726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}