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)

Enabling Graphics

In the last chapter, we learnt how to boot the x86vbox device using PXE and NFS. We can boot the device to an embedded Linux environment, which is the first stage of the Android-x86 boot. In this stage, we can use a debug console to verify the status of the system so that we can make sure everything is right before we start the real Android system. In this chapter, we will talk about the first issue we meet during Android system boot up. This is about how to enable the Android graphics system for the x86vbox device. We will cover the following topics in this chapter:

  • Overview of Android graphics architecture
  • Delving into graphics HAL
  • Analyzing the Android emulator graphics HAL for comparison
The graphics system probably is the most complicated software stack in the Android system architecture.
As you will see, the content in this chapter is much longer than the rest. Reading and understanding...