In this chapter, we learned the start up process of graphics systems. This includes the OpenGL ES libraries, Gralloc module, and device driver. We discussed the Gralloc module in the last chapter. In this chapter, we analyzed another two components, OpenGL ES libraries and the framebuffer driver. With all this knowledge in mind, we integrated the drivers from VirtualBox Guest Additions to the x86vbox device. In the next chapter, we will start to work on another project to explore how recovery works in Android systems.
Android System Programming
By :
Android System Programming
By:
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)
Preface
Free Chapter
Introduction to Android System Programming
Setting Up the Development Environment
Discovering Kernel, HAL, and Virtual Hardware
Customizing the Android Emulator
Enabling the ARM Translator and Introducing Native Bridge
Debugging the Boot Up Process Using a Customized ramdisk
Enabling Wi-Fi on the Android Emulator
Creating Your Own Device on VirtualBox
Booting Up x86vbox Using PXE/NFS
Enabling Graphics
Enabling VirtualBox-Specific Hardware Interfaces
Introducing Recovery
Creating OTA Packages
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