Need an efficient way to communicate between different parts of the app? Enter - EventBus.

1. EventBus
Dino Kovač

2. •simple communication between
parts of the app
•avoid spaghetti code
•easy way to notify the user when
he loses network connectivity
Motivation

3. Init
•add a maven dependency or add as a jar
•… and you’re done :)
compile ‘de.greenrobot:eventbus:2.2.0@jar’

4. • register subscribers
•EventBus.getDefault().register(object);
!
• post events
•EventBus.getDefault().post(new Object());
!
• handle events in onEvent methods
•public void onEvent(Object o) { … }
Usage

5. Register for events

6. Post events

7. Handle events

8. Threads, Crouton

9. • sticky events
• registerSticky(object); postSticky(new Object());
!
• async event delivery
• onEventAsync(Object o) { … }
!
• multiple EventBus buses
You need more?

10. https://github.com/greenrobot/EventBus
!
https://github.com/keyboardsurfer/Crouton
!
https://github.com/reisub/eventbus-example
Links