Android Treble 简介

前言：

With Android O, we've been working very closely with device makers and silicon manufacturers to take steps toward solving this problem, and we're excited to give you a sneak peek at Project Treble, the biggest change to the low-level system architecture of Android to date.

With Project Treble, we're re-architecting Android to make it easier, faster and less costly for manufacturers to update devices to a new version of Android.

上面两段话来自官网上，Android 8.0 重新设计了 Android 操作系统框架（在一个名为“Treble”的项目中），以便让制造商能够以更低的成本更轻松、更快速地将设备更新到新版 Android 系统。本文主要整理一下Android Treble框架。

1、release Andoid open-source code

先来看下之前Android release 的过程：