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  • Book Overview & Buying Learning Embedded Android N Programming
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Learning Embedded Android N Programming

Learning Embedded Android N Programming

By : Morgillo
2.8 (5)
Buy this Book
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Learning Embedded Android N Programming

Learning Embedded Android N Programming

2.8 (5)
By: Morgillo
Buy this Book

Overview of this book

Take a deep dive into the Android build system and its customization with Learning Embedded Android Programming, written to help you master the steep learning curve of working with embedded Android. Start by exploring the basics of Android OS, discover Google’s “repo” system, and discover how to retrieve AOSP source code. You'll then find out to set up the build environment and the first AOSP system. Next, learn how to customize the boot sequence with a new animation, and use an Android “kitchen” to “cook” your custom ROM. By the end of the book, you'll be able to build customized Android open source projects by developing your own set of features.
Table of Contents (10 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Understanding the Architecture
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1. Understanding the Architecture
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An overview of the Android system
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Android compatibility
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Beyond Java
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From Dalvik to ART runtime
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Meeting the Compatibility Test Suite
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Diving deeper with CTS Verifier
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Summary
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2. Obtaining the Source Code – Structure and Philosophy
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2. Obtaining the Source Code – Structure and Philosophy
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The Android philosophy
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Setting up the environment
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Installing the required tools
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Getting ready
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A look inside AOSP
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Summary
3
3. Set up and Build – the Emulator Way
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3. Set up and Build – the Emulator Way
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Preparing the host system
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The Android build system
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Creating a custom device
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From zero to the screenlock
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Summary
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4. Moving to Real-World Hardware
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4. Moving to Real-World Hardware
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Debugging tools
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Choosing our hardware
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Compiling Android for a real-world device
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Bootloader mode
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Flashing Android images
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Summary
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5. Customizing Kernel and Boot Sequence
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5. Customizing Kernel and Boot Sequence
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An overview of the Linux kernel
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Setting up the toolchain
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Preparing the host system
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Configuring the kernel
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Compiling the kernel
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Working with non-Google devices
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Driver management
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Altering the CPU frequency
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Customizing the boot image
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Android boot sequence
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Summary
6
6. "Cooking" Your First ROM
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6. "Cooking" Your First ROM
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History of custom ROMs
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An overview of Android recovery
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Device permissions
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Chef toolkit
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Cooking our first ROM
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Flashing our custom ROM
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Summary
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7. Tailoring Your Personal Android System
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7. Tailoring Your Personal Android System
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Receiving over the air updates – OTA
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Creating over the air updates
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Advanced ROM customization
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Hacking the Android framework
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Enhancing the system performance
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Advanced Linux kernel modding
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Looking forward
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Summary
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8. Beyond the Smartphone
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8. Beyond the Smartphone
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Meeting Arduino
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Exploring the possibilities of the Internet of Things
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Domotics
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Can a green droid entertain you?
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Summary
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Index
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Index

An overview of Android recovery

One of the most important parts of the whole Android architecture is the Recovery partition. A recovery partition is very common in embedded systems, and we saw an overview of it in previous chapters. As we know, the so-called Recovery is a minimal runtime system, completely decoupled from the main Android system and totally self-sufficient. Its main goal is to guarantee system integrity and provide the necessary tools to fix common minor issues and restore a properly working system.

With an Android vanilla Recovery, we can:

  • Update the Android system

  • Wipe the data partition and the cache partition

Wiping the data and cache partition is a common practice if we want to restore our device to the factory defaults, for instance, in order to have a clean system to start experimenting on something specific, or if we just want to sell it.

Diving into Android recovery

The Android Recovery system is completely standalone. This means that whatever might happen to the main...

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