Listing1: Page Navigation with Windows Phone and Windows 8
Repository class with Load method to retrieve FlickrImages.
- By Nick Randolph
- 04/24/2012
public class Repository
{
private FlickrImage[] Images { get; set; }
public async Task<IEnumerable<FlickrImage>> Load()
{
if (Images != null) return Images;
var request = HttpWebRequest.CreateHttp("http://api.flickr.com/services/feeds/photos_public.gne?format=xml&t
ags=wp7");
#if WINDOWS_PHONE
request.AllowReadStreamBuffering = true;
#endif
var resp = await request.GetResponseAsync();
using (var strm = resp.GetResponseStream())
{
var xml = XElement.Load(strm);
var ns = XNamespace.Get("http://www.w3.org/2005/Atom");
Images = (from entry in xml.Descendants(ns.GetName("entry"))
let title = entry.Element(ns.GetName("title"))
from links in entry.Descendants(ns.GetName("link"))
let rel = links.Attribute("rel")
where rel.Value == "enclosure"
let href = links.Attribute("href")
select new FlickrImage
{
ImageUrl = href.Value,
Title = title.Value
}).ToArray();
return Images;
}
}
}
About the Author
Nick Randolph runs Built to Roam, a consulting company that specializes in training, mentoring and assisting other companies build mobile applications. With a heritage in rich client applications for both the desktop and a variety of mobile platforms, Nick currently presents, writes and educates on the Windows Phone platform.