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Otto - An event bus by Square

An enhanced Guava-based event bus with emphasis on Android support.

Otto is an event bus designed to decouple different parts of your application while still allowing them to communicate efficiently.

Forked from Guava, Otto adds unique functionality to an already refined event bus as well as specializing it to the Android platform.

For usage instructions please see the website.

Deprecated!

This project is deprecated in favor of RxJava and RxAndroid. These projects permit the same event-driven programming model as Otto, but they’re more capable and offer better control of threading.

If you’re looking for guidance on migrating from Otto to Rx, this post is a good start.

Download

Downloadable .jars can be found on the GitHub download page.

You can also depend on the .jar through Maven:

<dependency>
  <groupId>com.squareup</groupId>
  <artifactId>otto</artifactId>
  <version>1.3.8</version>
</dependency>

or Gradle:

compile 'com.squareup:otto:1.3.8'

Snapshots of the development version are available in Sonatype's snapshots repository.

License

Copyright 2012 Square, Inc.
Copyright 2010 Google, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.