How to get Thumbnail video from GDataFeedYouTubePlaylist

[Alexandre Cruz]

I can get thumbnails from video like this:


for (int i=0; i<[feeds entries].count; i++) {
GDataEntryYouTubeVideo *entry = [[feeds entries]
objectAtIndex:i];
NSArray *thumbnails = [[(GDataEntryYouTubeVideo *)entry
mediaGroup] mediaThumbnails];
NSData *data = [NSData dataWithContentsOfURL:[NSURL
URLWithString:[[thumbnails objectAtIndex:0] URLString]]];
[listThumbNails addObject:[UIImage imageWithData:data]];
}

but my feed is from GDataFeedYouTubeVideo object

Now I'm getting videos from a playlist so i have a

GDataFeedYouTubePlaylist which I tried to get thumbnails the same way
but it's not working
anybody knows how to get this to work.

Thanks in advance

[Greg Robbins]

I looks like the playlistLink class is currently incorrectly defined for access to that element, as it's wrapped in a media:group.

I'll try to update the library next week to provide access. For now, you'd need to grab the raw XML from the playlistLink entry's unknownChildren array.

[Alexandre Cruz]

Thanks Greg!

[Greg Robbins]

I've updated the library to have a mediaGroup in the parent class of the playlistLink entry. That provides access to the thumbnail.

http://code.google.com/p/gdata-objectivec-client/source/detail?r=706

[Mike Malloy]

I'm seeing 2 thumbnail images for the playlist. A small and large image. Is this the expected result?

If I wanted to show thumbnails of a few of the videos inside the playlist - I assume I would have to make an additional call?

I really like this layout: http://www.youtube.com/user/commscope/videos?view=pl

my code:

- (void)allPlayListsFetchTicket:(GDataServiceTicket *)ticket finishedWithFeed:(GDataFeedBase *)aFeed error:(NSError *)error 

{ 

    self.youtubeFeed = (GDataFeedYouTubeVideo *)aFeed;

    NSArray *entries = [youtubeFeed entries];     

    for (int i=0; i < [entries count] ; i++) 

{ 

     GDataEntryYouTubePlaylistLink *plLink = [entries objectAtIndex:i];

     NSString *htmlLinkString = [[[[[plLink mediaGroup] mediaThumbnails] objectAtIndex:1] URLString]

}

[Greg Robbins]

Questions about how to use the YouTube API should be directed to the YouTube API forum,

http://code.google.com/apis/youtube/forum/

Typically, thumbnail fetches are done with a GTMHTTPFetcher instance or with some other http fetch API, as shown in the library's sample applications.

Generally, though, be careful of calling objectAtIndex: with a hardcoded index since it can throw an exception if the array has too few objects.

[Fabio Nisci]

Why i receive always NULL?? 

        GDataEntryYouTubePlaylistLink *playlistLink = (GDataEntryYouTubePlaylistLink *)entry;

        NSLog(@"%@", [[playlistLink thumbnail]URLString]);

in xml i can see the links... :(