Xcode Get image url from rss feed - iphone

Question

Newbie to Xcode and would be thrilled to get an answer to this question. I am trying to get the image url tag from a rss feed and add it to my custom table view cell. The other text I get fine.
This is the rss row:
<Item>
<title>this is a title</title>
<description>this is a description</description>
<link>http://www.something.com</link>
<pubDate>Fri, 09 Aug 2013</pubDate>
<enclosure type="image/jpg" url="http://www.ThisIsTheUrlIWant.com" />
</item>
This is part of my code without any image logic:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
CustomCellNews *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell" forIndexPath:indexPath];
cell.titleLabel.text = [[feeds objectAtIndex:indexPath.row] objectForKey: #"title"];
cell.descriptionLabel.text = [[feeds objectAtIndex:indexPath.row] objectForKey: #"description"];
//set cell image here
return cell;
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI: (NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
element = elementName;
if ([element isEqualToString:#"item"]) {
item = [[NSMutableDictionary alloc] init];
title = [[NSMutableString alloc] init];
link = [[NSMutableString alloc] init];
description = [[NSMutableString alloc] init];
//image stuff
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI: (NSString *)namespaceURI qualifiedName:(NSString *)qName {
if ([elementName isEqualToString:#"item"]) {
[item setObject:title forKey:#"title"];
[item setObject:link forKey:#"link"];
[item setObject:description forKey:#"description"];
//image stuff
[feeds addObject:[item copy]];
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if ([element isEqualToString:#"title"]) {
[title appendString:string];
} else if ([element isEqualToString:#"link"]) {
[link appendString:string];
} else if ([element isEqualToString:#"description"]) {
[ingress appendString:string];
}
//image stuff
}
Thanks

Answer 1

Try this:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if ([elementName isEqualToString:#"enclosure"]) {
NSString *units = [attributeDict objectForKey:#"url"];
}
}
Hope this helps.

Answer 2

First get the image URL from the attributes dictionary in the enclosure element inside the didStartElement method:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
//NSLog(#"Main View: didStartElement: %#\tstart", elementName);
element = elementName;
if ([element isEqualToString:#"item"]) {
item = [[NSMutableDictionary alloc] init];
title = [[NSMutableAttributedString alloc] init];
description = [[NSMutableAttributedString alloc] init];
link = [[NSMutableString alloc] init];
}
if ([element isEqualToString:#"enclosure"]) {
imageType = [attributeDict objectForKey:#"type"];
imageUrl = [attributeDict objectForKey:#"url"];
}
//NSLog(#"RSS Utility: didStartElement: %#", elementName);
}
Then add imageUrl to your item array inside the didEndElement method:
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if ([elementName isEqualToString:#"item"]) {
[item setObject:title forKey:#"title"];
[item setObject:link forKey:#"link"];
[item setObject:description forKey:#"description"];
[item setObject:imageType forKey:#"imageType"];
[item setObject:imageUrl forKey:#"imageUrl"];
[_feeds addObject:[item copy]];
}
}
This may not work for all rss feeds. I recommend you put NSLog statements inside the didStartElement to understand where the image url can be found:
NSLog(#"\nXML Parser:didStartElement:%#\n\t\t\tnameSpaceURI:%#\n\t\t\tqualifiedName:%#\n\t\t\tattributes:%#", elementName, namespaceURI, qName, attributeDict);