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XMLParser泄漏问题

nsxmlparser memory-leaks iphone

Rudiger · 技术社区 · 14 年前

我已经尝试了一段时间让xml解析器无泄漏、高效地工作,但到目前为止还没有成功。我删除了其他字段,因为它们都是相同的。

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
    currentElement = [[elementName copy] autorelease];
    if ([elementName isEqualToString:@"source"]) {
        if (!currentID) {
            overlays = [[NSMutableArray alloc] init];
            currentID = [[NSMutableString alloc] init];
        } else {
            [currentID release];
            currentID = nil;
            currentID = [[NSMutableString alloc] init];
        }
    }
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
    if ([elementName isEqualToString:@"source"]) {
         overlay = [[NSMutableDictionary alloc] init];
         [overlay setObject:currentID forKey:@"id"];
        [overlays insertObject:overlay atIndex:[overlays count]];
        [overlay release];
        overlay = nil;
    }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
   string = [string stringByReplacingOccurrencesOfString:@"\n" withString:@""];
   string = [string stringByReplacingOccurrencesOfString:@"\t" withString:@""];
   if ([currentElement isEqualToString:@"id"]) {
        [self.currentID appendString:string];
   }
}

- (void)parserDidEndDocument:(NSXMLParser *)parser {
    [currentID release];
    currentID = nil;
    //[self addResources];
 }

任何帮助都将不胜感激。

1 回复 | 直到 14 年前

tonklon 14 年前

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
    self.currentElement = elementName;
    if ([elementName isEqualToString:@"source"]) {
        if (!self.currentID) {
            self.overlays = [NSMutableArray array];
            self.currentID = [NSMutableString string];
        } else {
            self.currentID = [NSMutableString string];
        }
    }
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
    if ([elementName isEqualToString:@"source"]) {
        [self.overlays addObject:
        [NSDictionary dictionaryWithObjectsAndKeys:self.currentID,@"id",nil]];
    }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
   string = [string stringByReplacingOccurrencesOfString:@"\n" withString:@""];
   string = [string stringByReplacingOccurrencesOfString:@"\t" withString:@""];
   if ([self.currentElement isEqualToString:@"id"]) {
        [self.currentID appendString:string];
   }
}

- (void)parserDidEndDocument:(NSXMLParser *)parser {
    self.currentID = nil;
}

您还可以尝试构建;分析你的代码。这可能会指出你泄漏的地方。