TUTORIAL 18
No, Really Listening To Your
Friends
In the previous tutorial, we set up a service to watch for new timeline
entries from our friends. The service merely finds out about these new
statuses – now we need to get those someplace for our activity to display
them.
Step-By-Step Instructions.........................................................................
First, you need to have completed the previous tutorial. If you are
beginning the tutorials here, or if you wish to not use your existing work,
you can download a ZIP file with all of the tutorial results, and you can copy
the 17-CreateService edition of Patchy to use as a starting point.
Step #1: Define the Callback...............................................................
We need to provide some sort of callback to the service, so our activity can
be notified when new status updates are available. With that in mind,
create an Patchy/src/apt/tutorial/IPostListener.java interface as follows:
package apt.tutorial;public interface IPostListener {
void newFriendStatus(String friend, String status,
String createdAt);
}