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我在这个问题上已经两天了，无论我做什么，我都无法让它停止泄漏字符串。XML解析类重新运行时发生泄漏字符串
该类是一个XML解析器（使用TouchXML），该解析器设计为在应用程序的整个生命周期中反复运行。它第一次运行，没有泄漏，一切都完美清理。在第二次运行中，它开始泄漏，几乎总是有弦的地方。
从仪器的一些图片：
http://www.producerstudio.net/1.png
http://www.producerstudio.net/2.png
.H
#import <Foundation/Foundation.h>
#import "TouchXML.h"
@protocol RSSParsingComplete
-(void)parsingFinished;
@end
@interface RSS : NSObject<NSXMLParserDelegate>{
NSArray *rssURLArray;
NSMutableData *xmlData;
NSMutableArray *articles;
NSMutableArray *arrayOfArticles;
int numberOfFeeds;
NSDateFormatter *inputFormatter;
NSDateFormatter *outputFormatter;
id<RSSParsingComplete> delegate;
}
@property (nonatomic, retain) NSArray *rssURLArray;
@property (nonatomic, retain) NSMutableData *xmlData;
@property (nonatomic, retain) id<RSSParsingComplete> delegate;
@property (nonatomic, retain) NSMutableArray *articles;
@property (nonatomic, retain) NSMutableArray *arrayOfArticles;
@property (nonatomic, retain) NSDateFormatter *inputFormatter;
@property (nonatomic, retain) NSDateFormatter *outputFormatter;
-(id)initWithRSSArray:(NSArray *)inputURLArray;
-(void)connect;
-(NSArray *)feedArticles;
@end
.M
#import "RSS.h"
@implementation RSS
@synthesize xmlData, rssURLArray, articles, arrayOfArticles, delegate, inputFormatter, outputFormatter;
-(void)connect{
self.xmlData = [[[NSMutableData alloc] init] autorelease];
NSURL *rssURL = [[NSURL alloc] initWithString:[self.rssURLArray objectAtIndex:numberOfFeeds-1]];
NSURLConnection *urlConnection = [[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:rssURL] delegate:self];
[urlConnection release];
[rssURL release];
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
[self.xmlData setLength:0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
[self.xmlData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{
[xmlData release];
[connection release];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection{
CXMLDocument *xmlDoc = [[[CXMLDocument alloc] initWithData:xmlData options:0 error:nil] autorelease];
self.articles = [[[NSMutableArray alloc] init] autorelease];
self.inputFormatter = [[[NSDateFormatter alloc] init] autorelease];
self.outputFormatter = [[[NSDateFormatter alloc] init] autorelease];
[self.inputFormatter setDateFormat:@"EEE, dd MMM yyyy HH:mm:ss zzz"];
[self.inputFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]];
[self.inputFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
[self.outputFormatter setDateFormat:@"dd.MM.yyyy HH:mm:ss"];
[self.outputFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]];
[self.outputFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
NSArray *itemNodes = [xmlDoc nodesForXPath:@"//item" error:nil];
for(CXMLElement *node in itemNodes){
NSMutableDictionary *article = [[NSMutableDictionary alloc] init];
for(int counter = 0; counter < [node childCount]; counter++){
if([[[node childAtIndex:counter] name] isEqualToString:@"title"]){
[article setObject:[[node childAtIndex:counter] stringValue] forKey:@"title"];
}
if([[[node childAtIndex:counter] name] isEqualToString:@"link"]){
[article setObject:[[node childAtIndex:counter] stringValue] forKey:@"url"];
}
if([[[node childAtIndex:counter] name] isEqualToString:@"description"]){
[article setObject:[[node childAtIndex:counter] stringValue] forKey:@"description"];
}
if([[[node childAtIndex:counter] name] isEqualToString:@"pubDate"]){
NSDate *tempDate = [self.inputFormatter dateFromString:[[node childAtIndex:counter] stringValue]];
[article setObject:[self.outputFormatter stringFromDate:tempDate] forKey:@"name"];
}
}
[self.articles addObject:article];
[article release];
}
NSArray *feedTitleNode = [xmlDoc nodesForXPath:@"//title" error:nil];
NSString *feedTitle = [[NSString alloc] initWithString:[[[feedTitleNode objectAtIndex:0] childAtIndex:0] stringValue]];
[self.articles addObject:feedTitle];
[feedTitle release];
[self.arrayOfArticles addObject:[articles copy]];
[self.articles removeAllObjects];
[inputFormatter release];
[outputFormatter release];
numberOfFeeds--;
if(numberOfFeeds > 0){
[self connect];
}else{
[delegate parsingFinished];
}
}
-(NSArray *)feedArticles{
NSLog(@"Array of Articles: %@", self.arrayOfArticles);
return self.arrayOfArticles;
}
-(id)initWithRSSArray:(NSArray *)inputURLArray{
self = [super init];
if (self) {
self.arrayOfArticles = [[[NSMutableArray alloc] init] autorelease];
self.rssURLArray = [[[NSArray alloc] initWithArray:inputURLArray] autorelease];
numberOfFeeds = [self.rssURLArray count];
[self connect];
}
return self;
}
-(void)dealloc{
[rssURLArray release];
[xmlData release];
[articles release];
[arrayOfArticles release];
[super dealloc];
}
- (id)init
{
self = [super init];
return self;
}
@end
我已经尽全力解决泄漏问题。我已经阅读了Apple内存管理指南以及iPhoneDevSDK上的优秀指南，并且帮助我减少了原来90％的泄漏（只要您一次调用它就不会泄漏）。也许我一直在盯着这个太久，或者我失去了一些明显的东西。
我很感激！