EventBus in Android

Updated 8 June 2018


EventBus is an opensource library for android publish/subscribe event bus for loose coupling. EventBus enables central communication to decoupled classes with just a few lines of code simplifying the code.

Event Bus Features:

Add Dependency in your project build.gradle

Create Global instance of EventBus so we can create instance EventBus:

To Post data using Event Bus :

Register Event Bus in Activity onStart() method:

Unregister-Event Bus in Activity onStop() method:

To receive the post data we need to subscribe the MessageEvent:

@Subscribe annotation here specifies that the below function will execute taking the single parameter of type CustomEvent.

Event Bus is the very tiny library, it is so helpful to reduce boilerplate code and for creating a decoupled system.

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