EventBus3.1.1 2017年12月发布最新版。EventBus是一个专门为Android优化的“发布/订阅”模式的事件总线，是一个开源jar包。 官方介绍如下： 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.