內存泄漏相關

我正在釣魚的應用程序，這些天，我收到了內存泄漏問題內存泄漏相關

-(void)requestFinished:(ASIFormDataRequest *) request { 

     if(hud != nil){ 
      [hud show:NO]; 
      [hud release]; 
      hud = nil; 
     } 
     isLoading = NO; 
     self.responseText = [request responseString]; 
     [self parseXml];  //I am getting leak here 
     if ([self.responseText hasPrefix:@"<result>"]) { 
      UIAlertView *info = [[[UIAlertView alloc] initWithTitle:@" " message:@"Limited Internet access, please find a stronger signal in the area" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]autorelease]; 
      [info show]; 
     } 

if (!isRefreshButtonClicked) {  
      [UIAccelerometer sharedAccelerometer].delegate = self; 
      [NSThread detachNewThreadSelector:@selector(parseXml) toTarget:self withObject:nil]; 
     } }

這是我的功能...

-(void) parseXml 
{ 
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 

    _fishes = [[fishes parseXml:self.responseText] retain]; 

    [self performSelectorOnMainThread:@selector(parseXmlDone) withObject:nil waitUntilDone:YES]; 
     [pool release];

這裏_fishes是一個數組，正從一個數組返回類型函數的值.....這裏是功能...

+(NSMutableArray *)parseXml:(NSString *)xmlString { 
    //xmlString = [xmlString stringByReplacingOccurrencesOfString:@"&" withString:@""]; 
    const char *cString = [xmlString UTF8String]; 
    NSMutableArray *fishes = [NSMutableArray array]; 
    NSData *xmlData = [NSData dataWithBytes:cString length:strlen(cString)]; 
    NSError *error; 
    GDataXMLDocument *doc = [[GDataXMLDocument alloc]initWithData:xmlData options:0 error:&error]; 
    if (doc == nil) { return nil; } 
    //parseXml 
    NSArray *_fishes = [doc.rootElement elementsForName:@"fishery"]; 
    for (GDataXMLElement *_fish in _fishes) { 
     NSMutableDictionary *fish = [NSMutableDictionary dictionary]; 
     NSArray *ids = [_fish elementsForName:@"id"]; 
     if ([ids count]>0) { 
      GDataXMLElement *firstId = (GDataXMLElement *)[ids objectAtIndex:0]; 
      [fish setValue:firstId.stringValue forKey:@"id"]; 
     } else continue; 
     NSArray *names = [_fish elementsForName:@"name"]; 
     if ([names count]>0) { 
      GDataXMLElement *firstName = (GDataXMLElement *)[names objectAtIndex:0]; 
      [fish setValue:firstName.stringValue forKey:@"name"];........... 


    ........ 
else continue; 
     NSArray *distances = [_fish elementsForName:@"distance"]; 
     if ([distances count]>0) { 
      GDataXMLElement *distance = (GDataXMLElement *)[distances objectAtIndex:0]; 
      [fish setValue:distance.stringValue forKey:@"distance"]; 
     }else continue; 
     [fishes addObject:fish]; 
    } 
    [doc release]; 
    return fishes; 
} 
@end

我希望能跟大家會underst和我的問題...感謝名單

來源

2011-01-11 Sudhanshu

In requestFinished：你自動發佈了alertview，並且也調用了release方法。我認爲，這將導致一個問題 – Robin 2011-01-11 11:22:57

在-parseXml，

_fishes = [[fishes parseXml:self.responseText] retain];

會泄漏以往任何物體_fishes指着萬一-parseXml發送不止一次。您可以使用retain屬性而不是實例變量或釋放前一個對象的setter方法，或者在將新（保留）對象分配給_fishes之前釋放前一個對象。

來源

2011-01-11 11:43:56

內存泄漏相關

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