And there you have it: 30 .NET Windows Mobile Applications in 30 Days!

I really liked yesterday’s application, Community Megaphone Reader. I think it was because it was a Windows Mobile mashup application. And we can look forward to many more of these types of applications to come our way.

Trippr

You’ve probably already figured out what this application does. That’s right it takes your current GPS position and pulls back pictures that are geotagged for the area you are in. So while you are riding down the road you can flickrscan for photos taken near you, possibly as close as the block you are on.

Really cool idea I think. I’ll probably hook this up to the dashboard of my car and just let it run while I drive around. It should be lots of fun to just see what I see.

The UI is basic sterile white, but I wanted the photos to be the star of the show so I went with the one uber true neutral color.

Control are very simple: Update, Menu, GPS, GPS Start, GPS Stop, About, and Exit. Update is the main feature. Any time it is pressed new photos are downloaded.

Again for this project we looked to the GPS Intermediate Driver Reference, it has served us well these 30 days and I really highly recommend it. If you need to do a Windows Mobile GPS application use this and you are almost done.

Another great API I found is the Flickr.Net API. If you need to connect to Flickr in .NET or .NET Compact Framework this is great. It does all the heavy lifting for you! I was up and running in minutes!

“The Flickr.Net API is a .Net Library for accessing the Flickr API. Written entirely in C# it can be accessed from with any .Net language in .Net Framework 1.1, .Net Framework 2.0, .Net Compact Framework 2.0 and Mono.”

Update Method

   1: if (gpsPosition == null || !gpsPosition.LatitudeValid || !gpsPosition.LongitudeValid)

   2:      return;

   3:  

   4:  double minimumLongitude = gpsPosition.Longitude - 1;

   5:  double minimumLatitude = gpsPosition.Latitude - 1;

   6:  double maximumLongitude = gpsPosition.Longitude + 1;

   7:  double maximumLatitude = gpsPosition.Latitude + 1;

   8:  

   9:  string apikey = "get_your_own_flickr_key";

  10:  Flickr flickr = new Flickr(apikey);

  11:  

  12:  PhotoSearchOptions options = new PhotoSearchOptions();

  13:  options.BoundaryBox = new BoundaryBox(minimumLongitude, minimumLatitude, maximumLongitude, maximumLatitude);

  14:  options.Extras |= PhotoSearchExtras.Geo;

  15:  options.PerPage = 10;

  16:  options.SortOrder = PhotoSearchSortOrder.InterestingnessAsc;

  17:  

  18:  Photos photos = flickr.PhotosSearch(options); 

  19:  StringBuilder stringBuilder = new StringBuilder();

  20:  

  21:  foreach(Photo photo in photos.PhotoCollection)

  22:      stringBuilder.AppendFormat(@"<img src=""{0}"" style=""border: 1px black solid; padding: 0px; margin: 1px"" />", photo.ThumbnailUrl);

  23:  

  24:  webBrowser.DocumentText = stringBuilder.ToString();

Possibilities:

Obviously this needs an auto-update feature and settings for those of use who will use it on the road. If I click on a picture I’d love to see a larger view of it as well. and a details listing telling me more about the photo would be great.

Download executable: trippr.cab

Download Source Code: trippr.zip

Thank You:

I appreciate everyone’s encouragement and feedback. This project would not have been a success without all of you. Keep an out there’s more to come in the future.