使用NSDictionary <resolved />将XML项目“Category”parsing为NSArray

****解决scheme被发现，但奖励赏金需要一个很好的答案。****

题：

从.XSD模板生成的XML文件生成粘贴在下面的输出。 由于category的键是image ，我parsingimage项目的标准方式不会在category工作。 我想将category name="Category #"放入一个数组，我怎样才能从类别字段中的数组。

我需要的：

我想要的是一系列字典。 每个位置包含表示一个类别的字典，每个字典包含该类别的图像。

Array: @"Category 1",@"Category 2",@"Category 3";

For each Array, a Dictionary with: <image> 以及 </image> 之间的所有内容

基本上，我需要从XML数据源创build一个如下图所示的plist

XML输出：

 <?xml version="1.0" encoding="UTF-8"?> <app xmlns="http://www.wrightscs.com/_xml_.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.wrightscs.com/_xml_.xsd" name="Testing" unlock_product_id="com.wrightscs.all"> <bannerImg>http://www.wrightscs.com</bannerImg> <category name="Category 1" icon="http://www.wrightscs.com"> <image> <title>title</title> <thumbUrl>http://www.wrightscs.com</thumbUrl> <sampleUrl>http://www.wrightscs.com</sampleUrl> <imageUrl>http://www.wrightscs.com</imageUrl> <description>These items / keys not an issue.</description> <infoUrl>http://www.wrightscs.com</infoUrl> <license>http://www.wrightscs.com</license> <licenseUrl>http://www.wrightscs.com</licenseUrl> </image> </category> <category name="Category 2" icon="http://www.wrightscs.com"> <image> <title>title</title> <thumbUrl>http://www.wrightscs.com</thumbUrl> <sampleUrl>http://www.wrightscs.com</sampleUrl> <imageUrl>http://www.wrightscs.com</imageUrl> <description>These items / keys not an issue.</description> <infoUrl>http://www.wrightscs.com</infoUrl> <license>http://www.wrightscs.com</license> <licenseUrl>http://www.wrightscs.com</licenseUrl> </image> </category> <category name="Category 3" icon="http://www.wrightscs.com"> <image> <title>title</title> <thumbUrl>http://www.wrightscs.com</thumbUrl> <sampleUrl>http://www.wrightscs.com</sampleUrl> <imageUrl>http://www.wrightscs.com</imageUrl> <description>These items / keys not an issue.</description> <infoUrl>http://www.wrightscs.com</infoUrl> <license>http://www.wrightscs.com</license> <licenseUrl>http://www.wrightscs.com</licenseUrl> </image> </category> </app> 

注意：没有任何其他的项目/键是一个问题，我只是有兴趣做一个数组的类别。 这个例子中的URL也被replace为原始内容。

Answer 1

看看xpath和这个： http : //blog.objectgraph.com/index.php/2010/02/24/parsing-html-iphone-development/

在这种情况下，你需要的xpath是

//分类名称

这与上面提到的库应该返回数组中的类别名称。

对于更多的xpath语法，请查看： http : //www.w3schools.com/xpath/default.asp

Answer 2

解决scheme：

 #pragma mark - #pragma mark Delegate Received -(void)parsingComplete:(XMLDataSource*)theParser { NSArray *categoryArray = [theParser getCategories]; [categoryArray writeToFile:PLIST atomically:YES]; } - (void)receivedItems:(NSArray *)theItems { NSMutableArray *dataItems = [[NSMutableArray alloc] init]; [dataItems addObjectsFromArray:[NSArray arrayWithContentsOfFile:PLIST]]; NSDictionary * dataItem = [dataItems objectAtIndex:categoryIndex]; data_ = [dataItem objectForKey:@"images"]; [[NSNotificationCenter defaultCenter] postNotificationName:@"updateThumbs" object:nil]; } #pragma mark - #pragma mark Parsing Delegates - (void)parse:(NSData *)data withDelegate:(id)sender onComplete:(SEL)callback { parentDelegate = sender; onCompleteCallback = callback; loading = YES; NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data]; [parser setDelegate:self]; [parser setShouldProcessNamespaces:NO]; [parser setShouldReportNamespacePrefixes:NO]; [parser setShouldResolveExternalEntities:NO]; [parser parse]; } - (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { parsed = NO; loading = NO; } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { NSString *element = [elementName stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; currentElement = element; if ([[currentElement lowercaseString] isEqual:@"image"]) { inImage = YES; itemsDictionary = [[NSMutableDictionary alloc] init]; [itemsDictionary addEntriesFromDictionary:attributeDict]; } if ([[currentElement lowercaseString] isEqual:@"category"]) { inCategory = YES; categoryDictionary = [[NSMutableDictionary alloc] init]; [categoryDictionary addEntriesFromDictionary:attributeDict]; } } - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { NSString *element = [elementName stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; if ([[element lowercaseString] isEqual:@"image"]) { inImage = NO; [items addObject:[itemsDictionary copy]]; } if ([[element lowercaseString] isEqual:@"category"]) { inCategory = NO; [categoryDictionary setObject:[items copy] forKey:@"images"]; [items removeAllObjects]; [categories addObject:[categoryDictionary copy]]; } } - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { NSString *stringValue = [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; NSString *element = [currentElement stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; /* skip over blank elements. */ if (stringValue == nil || [stringValue isEqual:@""]) { return; } if (element != nil && [element length] > 0) { if (inImage) { if ([itemsDictionary objectForKey:element] != nil) { [itemsDictionary setObject:[NSString stringWithFormat:@"%@%@", [itemsDictionary objectForKey:element], stringValue] forKey:element]; } else { [itemsDictionary setObject:stringValue forKey:element]; } } else if ((!inImage) && (inCategory)) { if ([categoryDictionary objectForKey:element] != nil) { [categoryDictionary setObject:[NSString stringWithFormat:@"%@%@", [categoryDictionary objectForKey:element], stringValue] forKey:element]; } else { [categoryDictionary setObject:stringValue forKey:element]; } } else { if ([root objectForKey:element] != nil) { [root setObject:stringValue forKey:element]; } } } } - (void)parserDidStartDocument:(NSXMLParser *)parser { NSError * err; if(![[NSFileManager defaultManager] fileExistsAtPath:PLIST]) { [[NSFileManager defaultManager] removeItemAtPath:PLIST error:&err]; } } - (void)parserDidEndDocument:(NSXMLParser *)parser { parsed = YES; loading = NO; if ([parentDelegate respondsToSelector:onCompleteCallback]) { [parentDelegate performSelector:onCompleteCallback withObject:self]; } if ([self respondsToSelector:@selector(receivedItems:)]) [self receivedItems:items]; else SHOW_ALERT(@"parserDidEndDocument:", @"receivedItems: not responding!", nil, @"Okay", nil) } #pragma mark - #pragma mark Setters / Getters - (id)delegate { return self; } - (void)setDelegate:(id)new_delegate { _delegate = self; } - (BOOL)isSuccessful { return success; } - (BOOL)isLoading { return loading; } - (BOOL)isParsed { return parsed; } - (NSArray *)getCategories { return categories; } - (NSDictionary *)getRoot { return root; } - (void)dealloc { [super dealloc]; }