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POUse NSXMLParser to only parse the first ten posts, then parse next lot separately
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  1. POUse NSXMLParser to only parse the first ten posts, then parse next lot separately
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    copied!<p>I am using NSXmlParser to parse through an rss feed. All is working well so far. </p> <p>I'm anticipating the rss feed will eventually contains dozens/hundreds of posts. My current solution is reading the entire rss feed and displaying the results. However I want to only read the first ten posts (to prevent it parsing potentially hundreds of items). Then at a later time (say when the user reaches the end of the table) to parse the next ten posts. </p> <p>So my question is how would I parse the first ten posts, then parse the next ten posts, then the next ten posts and so on...</p> <p>Here is what I am using to get ALL posts:</p> <pre><code>- (void)parseXMLFileAtURL:(NSString *)URL { myArray = [[NSMutableArray alloc] init]; //convert the path to a proper NSURL or it won't work NSURL *xmlURL = [NSURL URLWithString:URL]; rssParser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL]; [rssParser setDelegate:self]; [rssParser parse]; } - (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { //error } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{ currentElement = [elementName copy]; if ([elementName isEqualToString:@"item"]) { //clear out our story item caches... item = [[NSMutableDictionary alloc] init]; } } - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{ if ([elementName isEqualToString:@"item"]) { // save values to an item, then store that item into the array... } } - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{ // save the characters for the current item... } - (void)parserDidEndDocument:(NSXMLParser *)parser { [myTable reloadData]; } </code></pre>
 

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