The apps that dominate the brains of users are networked apps. Those people fiddling with their phones instead of talking to each other at dinner? They are maniacally checking their newsfeeds, responding to text messages, or playing networked games.
To get started with networking in Android, you are going to create a new app called PhotoGallery. PhotoGallery is a client for the photo-sharing site Flickr. It will fetch and display the most recent public photos uploaded to Flickr. Figure 26.1 gives you an idea of what the app will look like.
Figure 26.1 Complete PhotoGallery
(Figure 26.1 shows photos that are ours instead ...