EventBus Dino Kovač

• simple communication between parts of the app

• avoid spaghetti code • easy way to notify the user when

he loses network connectivity

Motivation

Init

• add a maven dependency or add as a jar • … and you’re done :)

compile ‘de.greenrobot:eventbus:2.2.0@jar’

• register subscribers

•EventBus.getDefault().register(object); !• post events

•EventBus.getDefault().post(new Object()); !• handle events in onEvent methods

•public void onEvent(Object o) { … }

Usage

Register for events

Post events

Handle events

Threads, Crouton

• sticky events • registerSticky(object); postSticky(new Object());

!• async event delivery

• onEventAsync(Object o) { … } !• multiple EventBus buses

You need more?

https://github.com/greenrobot/EventBus !

https://github.com/keyboardsurfer/Crouton !

https://github.com/reisub/eventbus-example

Links