错误:内存泄漏，数据格式化程序暂时不可用 [英] ERROR: Memory Leak, data formatters temporarily unavailable

问题描述

我正在开发测验应用程序.我从xml文件中获取问题，对其进行解析并显示随机问题.这些存储在NSdictionary和NSMutableArray中.该应用程序还播放背景音乐和声音以单击按钮(AVAudioPlayer).和振动(AudioServicesPlaySystemSound(kSystemSoundID_Vibrate))

I am developing a quiz app. I take questions from a xml file, parse it and display random questions. These are stored in NSdictionary and NSMutableArray. Also the app plays background music and sound for clicking of buttons(AVAudioPlayer). and vibration( AudioServicesPlaySystemSound(kSystemSoundID_Vibrate))

在一个特定的函数中，如果我尝试释放我使用的临时变量(即NSDictionary和NSMutableArray)，则应用崩溃，因为我第二次到达该函数.因此，如果我不发布这些文件，则可以正常工作，但最终会因"EXC_BAD_ACCESS"错误而崩溃.它不指向任何行或函数.

In one particular function if i try to release the temp variables that I use(I.E NSDictionary and NSMutableArray) the app crashes wen i reach that function for the second time. Hence if i don release these, it works fine but eventually crashes with a "EXC_BAD_ACCESS" ERROR. It does not point out to any line or function.

当我使用工具"LEAKS"时，表明我有大约7000次泄漏.我不知道如何使用该工具，但是我可以确定我创建的变量不是很多，只是有些甚至是我发布的那些变量.

When i used the tool "LEAKS", it showed i was having around 7000 leaks. I don understand how to use that tool but I am sure that i am not creating so many variables, jus a few and even those I release.

而一旦我收到错误消息数据格式化程序暂时不可用".

And just once i got the ERROR " data formatters temporarily unavailable".

知道我在做什么错吗? F1:)

Any Idea what i am doing wrong?? F1 :)

PS:我的代码都是简单的东西，再加上我不知道出现什么问题，因此我不知道要在此处发布什么代码? 我也想知道我是否在临时使用的函数中创建NSString *，是否应该在函数末尾将其释放?(我确实将其释放)

PS: my code is all simple stuff, plus i donno what the problem is hence i donno what code to post here? Also i would like to know if i create a NSString* in a function for temp use should i release it at the end of the function?(i do release it)

    -(void) loadQuestion
    { 
    strCorrectAnswer = @"";
    int intQuestionNo;
    NSString *strQuestionNo = [[NSString alloc] init];

    // get random question out  the xml file  
NSDictionary *dctQue = [dctQuestions  objectForKey:strQuestionNo];
// blah blah

    // jumble the answers to   be displaed


NSMutableArray *answerJumble = [[NSMutableArray alloc] init];
NSMutableArray *answers =[NSMutableArray arrayWithObjects:[dctQue objectForKey:@"WrongAnswer1"],[dctQue objectForKey:@"WrongAnswer2"],[dctQue objectForKey:@"WrongAnswer3"],[dctQue objectForKey:@"CorrectAnswer"],nil];

 // blah blah

  /*
[strQuestionNo release];
[answers release];
[answerJumble release]; */  

}

推荐答案

在进行了一些挖掘之后，问题在于必须重播声音文件.如果我按一个按钮，并且再按一次，则在声音文件播放完毕之前，声音文件只被播放了一次.导致内存泄漏为3000.

well after a bit of digging, the problem was wen the sound file had to be replayed. If i press a button and before the sound file finishes playing if i press again, the sound file was being played just once. Resulting in a memory leak of 3000.

如果两次泄漏6425之后，我两次使应用程序崩溃，则发生错误.因此，出现错误-当前不可用的数据格式化程序".(我想)

IF i did this twice the app wud crash after a leak of 6425. Hence the ERROR-"data formatters currently not available".(i guess)

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