Analysis of the Binder-based IPC process framework in Android, androidbinder

Analysis of the Binder-based IPC process framework in Android, androidbinder

Preface:

Activity, Service, BroadcastReceiver, and Content Provider are four application components of Android. These components that constitute a complete application can be in the same process or not in the same process, when these components are not in the same Process and data interaction is required, an Inter-Process Communication mechanism (IPC) is required, the Binder is a framework that provides IPC functions. The entire Binder framework for implementing IPC consists of several important components: Binder Driver, Client, and Service (the Service is different from the Service components of the application) and ServiceManager.

Article directory:

Binder-based IPC framework analysis... 1

Directory... 2

1. Binder inter-process communication mechanism... 3

Ii. Binder Driver. 3

Iii. ServiceManager. 3

4. Service (Server) components... 4

5. Client (Proxy) component... 6

6. Data Interaction between Client components and Service components... 6

VII. Communication details encapsulated by the IPC framework... 6

8. Obtain the proxy object of the Service component and perform IPC communication... 7

9. Object lifecycle management in Binder communication... 8

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Analysis of Binder-based IPC process framework in Android