Asynchronous Otto BusProvider that always posts events on the main thread

AsyncBus.java

public class AsyncBus extends Bus {
  private final Handler mainThread = new Handler(Looper.getMainLooper());

  @Override public void post(final Object event) {
    mainThread.post(new Runnable() {
      @Override public void run() {
        AsyncBus.super.post(event);
      }
    });
  }
}