Question

Jelly Bean added support for expandable status notification. According to http://developer.android.com/about/versions/jelly-bean.html:

In addition to the templated styles, you can create your own
notification styles using any remote View.

How do do this? I believe to do this you need to create a custom Notification.Style. It’s an abstract class so I it needs to be extended. I haven’t been able to find any documentation on which parts need to be extended.

This SO question gives a good example of how to use the notificaiton.builder for basic notificaitons, I’m using this as a starting point. Adding

.setContent(new RemoteViews(getPackageName(), R.layout.notification)) 

adds a custom view for basic notifications, but it’s not expandable.

Answer 1

You need to create your own RemoteViews, then indicate that you want the expanded content to inherit your custom RemoteViews.

 RemoteViews expandedView = new RemoteViews(YOUR CONTEXT.getPackageName(), YOUR CUSTOM LAYOUT);
 Notification notification = mBuilder.build();
 notification.bigContentView = expandedView;

Note that bigContentView is what you’re looking for. mBuilder is a Notification.Builder object.