[Android] EventBus

EventBus is a publish/subscribe event bus optimized for Android.

EventBus…

• simplifies the communication between components
  • decouples event senders and receivers
  • performs well with Activities, Fragments, and background threads
  • avoids complex and error-prone dependencies and life cycle issues
• makes your code simpler
• is fast
• is tiny (~50k jar)
• is proven in practice by apps with 100,000,000+ installs
• has advanced features like delivery threads, subscriber priorities, etc.

EventBus in 3 steps

1. Define events:
   
   Java

   public class MessageEvent { /* Additional fields if needed */ }

   1	public class MessageEvent { /* Additional fields if needed */ }

2. Prepare subscribers: Register your subscriber (in your onCreate or in a constructor):
   
   eventBus.register(this);

   1	eventBus.register(this);

3. Declare your subscribing method:
   
   @Subscribe public void onEvent(AnyEventType event) {/* Do something */};

   1 2	@Subscribe   public void onEvent(AnyEventType event) {/* Do something */};

4. Post events:
   
   eventBus.post(event);

   1	eventBus.post(event);

Gradle:

License

Copyright (C) 2012-2016 Markus Junginger, greenrobot (http://greenrobot.org)

EventBus binaries and source code can be used according to the Apache License, Version 2.0.