如何从iphone中的xml页面解析第二个子节点

时间:2010-02-08 08:49:45

标签: iphone objective-c xml-parsing

我是iphone开发的新手。我想要解析一个管状XML页面并检索其内容并显示在RSS源中。

我的xml页面是

<entry>
<id>xxxxx</id>
<title>xxx xxxx xxxx</title>
<content>xxxxxxxxxxx</content>
<media:group>
 <media:thumbnail url="http://tiger.jpg"/>
</media:group>
</entry>

要检索我正在使用xml解析的内容。

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{            

currentElement = [elementName copy];
if ([elementName isEqualToString:@"entry"]) {

    entry = [[NSMutableDictionary alloc] init];
    currentTitle = [[NSMutableString alloc] init];
    currentcontent = [[NSMutableString alloc] init];
    }

}


- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{     
if ([elementName isEqualToString:@"entry"]) {
    [entry setObject:currentTitle forKey:@"title"];
    [entry setObject:currentDate forKey:@"content"];
    [stories addObject:[entry copy]];
    }}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{

if ([currentElement isEqualToString:@"title"]) {
    [currentTitle appendString:string];
} else if ([currentElement isEqualToString:@"content"]) {
    [currentLink appendString:string];
 }
 }

我能够检索id,title和content值并将其显示在table-view中。如何检索老虎图像URL并将其显示在table-view中。请帮助我。谢谢。

1 个答案:

答案 0 :(得分:2)

   - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{            

    currentElement = [elementName copy];
    if ([elementName isEqualToString:@"media:thumbnail"])
    imageUrl=[attributeDict objectForKey:@"url"];
}

由于此方法中已有if语句,因此使用else if this this