Book Image

Android System Programming

By : Roger Ye, Shen Liu
Book Image

Android System Programming

By: Roger Ye, Shen Liu

Overview of this book

Android system programming involves both hardware and software knowledge to work on system level programming. The developers need to use various techniques to debug the different components in the target devices. With all the challenges, you usually have a deep learning curve to master relevant knowledge in this area. This book will not only give you the key knowledge you need to understand Android system programming, but will also prepare you as you get hands-on with projects and gain debugging skills that you can use in your future projects. You will start by exploring the basic setup of AOSP, and building and testing an emulator image. In the first project, you will learn how to customize and extend the Android emulator. Then you’ll move on to the real challenge—building your own Android system on VirtualBox. You’ll see how to debug the init process, resolve the bootloader issue, and enable various hardware interfaces. When you have a complete system, you will learn how to patch and upgrade it through recovery. Throughout the book, you will get to know useful tips on how to integrate and reuse existing open source projects such as LineageOS (CyanogenMod), Android-x86, Xposed, and GApps in your own system.
Table of Contents (15 chapters)

What is inside the AOSP?

Before we move to the details, let's take a look at the top level of the AOSP source code tree again:

The following table gives a brief description about each folder. We will look at some of them throughout this book:




Stock Android applications.


Core Java library. Apache Harmony is used before Nougat. OpenJDK is used with Nougat. Some features of Java 8 are used in Nougat.


Android framework core components.


Android system services.


Android runtime.


Dalvik virtual machine.


Helper functions for use with JNI.


Native services and libraries.


A minimal Linux system to boot Android.


C library.


External projects imported into the AOSP. It includes both the HAL layer and system services...