Asynchronous Android Programming - Second Edition

Chapter 11. Exploring Bus-based Communications

In previous chapters, we have been using different techniques to disseminate data/events/notifications between several Android application components (Activity, Fragment, Service, BroadcastReceiver, …):

• Intents were sent through the system carrying communication messages or notifications to notify a Service or Activity to start
• Broadcast Intents were used to report a result back from background processes
• Handlers were used to communicate between different processes and thread executions

These techniques usually involved a tight coupling between the component that sends the message and the component that receives it. Typically, the sender dispatches a message to a certain receiver and deals with the receiver ...