Question

我目前正在使用YouTube API V2，并且在收集视频说明时收到的数据不正确。

This is the link where I'm getting the XML information from.

这是我想要的字符串

我们可以为所有伟大目标命中5000次吗？ :) http://www.facebook.com/GudjonDanielYT https://twitter.com/GudjonDaniel

但是我得到了这个

GudjonDanielhttp：//gdata.youtube.com/feeds/api/users/GudjonDanielkM0YirXKa4Lb7MsgqHWiMwEntertainmentgudjondanielCan 我们为所有伟大目标命中了5000次赞？ :) http://www.facebook.com/GudjonDanielYT https://twitter.com/GudjonDaniel

我的代码，它位于media:description

- (void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    if ([elementname isEqualToString:@"title"] || [elementname isEqualToString:@"content"])
    {
        currentNodeContent = [[NSMutableString alloc] init];
    }
    else if ([elementname isEqualToString:@"entry"])
    {
        currentFeed = [ChanelFeeds alloc];
    }
    else if ([elementname isEqualToString:@"yt:duration"])
    {
        currentFeed.duration = [attributeDict objectForKey:@"seconds"];
    }
    else if ([elementname isEqualToString:@"yt:statistics"])
    {
        currentFeed.views = [attributeDict objectForKey:@"viewCount"];
    }
    else if ([elementname isEqualToString:@"gd:rating"])
    {
        currentFeed.rating = [attributeDict objectForKey:@"average"];
    }
    else if ([elementname isEqualToString:@"media:player"])
    {
        currentFeed.streamURL = [NSURL URLWithString:[attributeDict objectForKey:@"url"]];
    }
    else if ([elementname isEqualToString:@"media:thumbnail"] && !currentFeed.thumbnailURL)
    {
        currentFeed.thumbnailURL = [NSURL URLWithString:[attributeDict objectForKey:@"url"]];
    }
}

- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
    if ([elementname isEqualToString:@"title"])
    {
        currentFeed.title = currentNodeContent;
        currentNodeContent = nil;
    }
    else if ([elementname isEqualToString:@"media:description"])
    {
        currentFeed.description = currentNodeContent;
        currentNodeContent = nil;
    }
    else if ([elementname isEqualToString:@"entry"])
    {
        [self.feeds addObject:currentFeed];
        currentFeed = nil;
        currentNodeContent = nil;
    }
}

Answer 1

您在didStartElement中搜索的元素名称（初始化currentNodeContent）与您用于保存和重置currentNodeContent的元素名称不匹配didEndElement方法。

因此，你的行说：

if ([elementname isEqualToString:@"title"] || [elementname isEqualToString:@"content"])
{
    currentNodeContent = [[NSMutableString alloc] init];
}

可能应该说：

if ([elementname isEqualToString:@"title"] || [elementname isEqualToString:@"media:description"])
{
    currentNodeContent = [[NSMutableString alloc] init];
}

使用XML快速修复？

1 个答案: