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POYoutube thumbnail from channel rss feed?
 

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    <p>I am trying to load a youtube channel's feed into a uitableview with an rss feed. I need this to display the thumbnail from the individual videos. I can only find this using the gdata client which does not work. Here is the code I have so far:</p> <p>Videos.h:</p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface Videos : UITableViewController&lt;NSXMLParserelegate&gt;{ IBOutlet UITableView * newsTable; UIActivityIndicatorView * activityIndicator; CGSize cellSize; NSXMLParser * rssParser; NSMutableArray * stories; // a temporary item; added to the "stories" array one at a time, and cleared for the next one NSMutableDictionary * item; // it parses through the document, from top to bottom... // we collect and cache each sub-element value, and then save each item to our array. // we use these to track each current item, until it's ready to be added to the "stories" array NSString * currentElement; NSMutableString * currentTitle, * currentDate, * currentSummary, * currentLink; } - (void)parseXMLFileAtURL:(NSString *)URL; @end </code></pre> <p>Videos.m</p> <pre><code>#import "Videos.h" #import "AppDelegate.h" @implementation Videos - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization self.tabBarItem.image = [UIImage imageNamed:@"clapboard@2x.png"]; } return self; } - (void)viewDidLoad { // Add the following line if you want the list to be editable } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [stories count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *MyIdentifier = @"MyIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MyIdentifier]; } // Set up the cell int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1]; cell.textLabel.text=[[stories objectAtIndex: storyIndex] objectForKey: @"title"]; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Navigation logic int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1]; NSString * storyLink = [[stories objectAtIndex: storyIndex] objectForKey: @"link"]; NSLog(@"%@",stories ); // clean up the link - get rid of spaces, returns, and tabs... storyLink = [storyLink stringByReplacingOccurrencesOfString:@" " withString:@""]; storyLink = [storyLink stringByReplacingOccurrencesOfString:@"\n" withString:@""]; storyLink = [storyLink stringByReplacingOccurrencesOfString:@" " withString:@""]; // open in Safari [[UIApplication sharedApplication] openURL:[NSURL URLWithString:storyLink]]; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; if ([stories count] == 0) { NSString * path = @"https://youtube.com/rss/user/TheGruenebergBrother/videos.rss"; [self parseXMLFileAtURL:path]; } cellSize = CGSizeMake([newsTable bounds].size.width, 60); } - (void)viewWillDisappear:(BOOL)animated { } - (void)viewDidDisappear:(BOOL)animated { } #pragma mark - parseing_Delegate_methods - (void)parserDidStartDocument:(NSXMLParser *)parser{ NSLog(@"found file and started parsing"); } - (void)parseXMLFileAtURL:(NSString *)URL { stories = [[NSMutableArray alloc] init]; //you must then convert the path to a proper NSURL or it won't work NSURL *xmlURL = [NSURL URLWithString:URL]; // here, for some reason you have to use NSClassFromString when trying to alloc NSXMLParser, otherwise you will get an object not found error // this may be necessary only for the toolchain rssParser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL]; // Set self as the delegate of the parser so that it will receive the parser delegate methods callbacks. [rssParser setDelegate:self]; // Depending on the XML document you're parsing, you may want to enable these features of NSXMLParser. [rssParser setShouldProcessNamespaces:NO]; [rssParser setShouldReportNamespacePrefixes:NO]; [rssParser setShouldResolveExternalEntities:NO]; [rssParser parse]; } - (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { NSString * errorString = [NSString stringWithFormat:@"Unable to download story feed from web site (Error code %i )", [parseError code]]; NSLog(@"error parsing XML: %@", errorString); UIAlertView * errorAlert = [[UIAlertView alloc] initWithTitle:@"Error loading content" message:errorString delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [errorAlert show]; } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{ //NSLog(@"found this element: %@", elementName); currentElement = [elementName copy]; if ([elementName isEqualToString:@"item"]) { // clear out our story item caches... item = [[NSMutableDictionary alloc] init]; currentTitle = [[NSMutableString alloc] init]; currentDate = [[NSMutableString alloc] init]; currentSummary = [[NSMutableString alloc] init]; currentLink = [[NSMutableString alloc] init]; } } - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{ //NSLog(@"ended element: %@", elementName); if ([elementName isEqualToString:@"item"]) { // save values to an item, then store that item into the array... [item setObject:currentTitle forKey:@"title"]; [item setObject:currentLink forKey:@"link"]; [item setObject:currentSummary forKey:@"summary"]; [item setObject:currentDate forKey:@"date"]; [stories addObject:[item copy]]; NSLog(@"adding story: %@", currentTitle); } } - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{ //NSLog(@"found characters: %@", string); // save the characters for the current item... if ([currentElement isEqualToString:@"title"]) { [currentTitle appendString:string]; } else if ([currentElement isEqualToString:@"link"]) { [currentLink appendString:string]; } else if ([currentElement isEqualToString:@"description"]) { [currentSummary appendString:string]; } else if ([currentElement isEqualToString:@"pubDate"]) { [currentDate appendString:string]; } } - (void)parserDidEndDocument:(NSXMLParser *)parser { [activityIndicator stopAnimating]; [activityIndicator removeFromSuperview]; NSLog(@"all done!"); NSLog(@"stories array has %d items", [stories count]); [newsTable reloadData]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation == UIInterfaceOrientationPortrait); } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview // Release anything that's not essential, such as cached data } - (void)dealloc { [currentElement release]; [rssParser release]; [stories release]; [item release]; [currentTitle release]; [currentDate release]; [currentSummary release]; [currentLink release]; [super dealloc]; } @end </code></pre> <p>Also where should the code go, and what is the code? Thanks</p>
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    1. USDan Grueneberg
    1. USDan Grueneberg
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    1. COhttp://stackoverflow.com/a/2068371/1106035
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      1. USParesh Navadiya
 

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