AppModule.java

@Module
public class AppModule {

  private final Application application;

  public AppModule(Application application) {
    this.application = application;
  }

  @Provides public Application application() {
    return application;
  }

  @Provides public AsyncBus asyncBus(Application app) {
    MemoryInfo mi = new MemoryInfo();
    ActivityManager activityManager = (ActivityManager) app.getSystemService(ACTIVITY_SERVICE);
    activityManager.getMemoryInfo(mi);
    long availableMegs = mi.availMem / 1048576L;

    long percentAvail = mi.availMem / mi.totalMem;
    
    if (percentAvail > 70L) {
      return new SuperPuperBus();
    } else {
      return new SlowMemBus();
    }
  }
}