Instant Android Systems Development How-to

Get your hands dirty with Android Systems Development through carefully thought-out source code examples with this book and ebook

Overview

• Learn something new in an Instant! A short, fast, focused guide delivering immediate results
• A gentle introduction to Android Platform Internals and how to make changes to the system
• Gain the skills necessary for building high quality systems code for the Android Platform
• Code examples are provided in a manner that facilitates the “Learning-by-doing” paradigm

In Detail

Android is by far the most popular open source mobile operating system. Learning to write high quality code at the platform level and learning how the systems works internally is a vital skill. This book teaches you these skills with clear and concise explanations and code examples.

Instant Android Systems Development How-to provides a gentle introduction to the platform internals without sacrificing depth. Source code examples are designed to be meaningful, but at the same time, do not disguise their real purpose, which is to illustrate systems development techniques and common design patterns in android systems programming. Readers will be guided through several examples that give a hands-on experience.

Readers begin by downloading the android source code, which is a topic of much discussion on android forums. They are then guided through the android boot process, and later on learn various common android systems development paradigms. More importantly, the book provides advice on when to use certain techniques which is often a mystery for the novice developer. Readers who complete the book will have high confidence in developing good systems code for Android.

The book discusses how to setup a development machine and how to obtain the android source code and kernel code. It describes the source code organization and how the system boots up with precise references to various points in the source code. It highlights the common systems design patterns followed and how to create a custom system service. It then covers the all important flashing of phones. This is a topic of much confusion and the book provides direct steps to achieve safe flashing of developer phones. It describes the user application library mechanism and the platform library mechanism. Native code is needed for certain operations and an example service utilizing native code is explained. Modification of core system applications is explained and useful tips are provided on how to speed up the build-test cycle. The book concludes with a case study of two real world android platform extensions which give the user a reference while developing their own extensions.

Instant Android Systems Development How-to is a well rounded book on platform internals that provides simple explanations without sacrificing depth and rigor.

What you will learn from this book

• Learn to correctly obtain the Android Platform sources and android kernel sources
• Gain knowledge about the Android boot process and new concepts introduced by Android into the Linux world
• Build custom system services and secure these using the correct security mechanisms
• Flash built OS images to several Google Developer phones and learn the concepts behind various flashing procedures
• Expose custom system services to SDK applications through user application linked libraries
• Understand the platform library mechanism and how this helps build platform extensions without changing the core system
• Modify the core Android system services and get knowledge about the rules to be kept in mind while doing so
• Gain tips and Tricks to shorten the build-test cycle

這本書和電子書將通過精心設計的源代碼示例，讓您深入了解Android系統開發。以下是書籍的概述和詳細內容：

概述：
- 立即學習！這是一本短小、快速、專注的指南，能夠立即帶來成果。
- 輕鬆入門Android平台內部，並學習如何對系統進行更改。
- 獲得構建Android平台高質量系統代碼所需的技能。
- 代碼示例以促進“學以致用”的方式提供。

詳細內容：
Android是目前最受歡迎的開源移動操作系統。學習在平台級別上編寫高質量代碼，以及了解系統內部工作原理是一項重要的技能。本書通過清晰簡潔的解釋和代碼示例來教授這些技能。

《立即學習Android系統開發》是一本深入介紹平台內部的書籍，同時不失深度。代碼示例旨在具有意義，同時不掩蓋其真正目的，即說明Android系統編程中的系統開發技術和常見設計模式。讀者將通過多個實例進行實踐。

讀者首先下載Android源代碼，這是Android論壇上廣泛討論的話題。然後，他們將逐步了解Android的啟動過程，並學習各種常見的Android系統開發範例。更重要的是，本書提供了何時使用某些技術的建議，這對於初學者開發者來說通常是一個謎。

本書討論了如何設置開發機器以及如何獲取Android源代碼和內核代碼。它描述了源代碼組織以及系統如何在源代碼的各個點上啟動。它強調了遵循的常見系統設計模式以及如何創建自定義系統服務。然後，它涵蓋了非常重要的手機刷機過程。這是一個令人困惑的話題，本書提供了實現安全刷機的直接步驟。它描述了用戶應用程序庫機制和平台庫機制。某些操作需要使用本機代碼，並且解釋了使用本機代碼的示例服務。解釋了修改核心系統應用程序的方法，並提供了有關如何加快構建-測試循環的實用技巧。本書以兩個真實世界的Android平台擴展案例研究作為結尾，為讀者在開發自己的擴展時提供參考。

《立即學習Android系統開發》是一本全面介紹平台內部的書籍，提供了簡單易懂的解釋，同時不失深度和嚴謹性。

本書將教您以下內容：
- 正確獲取Android平台源代碼和Android內核源代碼的方法。
- 了解Android的啟動過程以及Android引入Linux世界的新概念。
- 構建自定義系統服務並使用正確的安全機制保護它們。
- 將構建的操作系統映像刷入多個Google開發者手機，並學習各種刷機程序背後的概念。
- 通過用戶應用程序連接庫將自定義系統服務暴露給SDK應用程序。
- 了解平台庫機制以及如何在不更改核心系統的情況下構建平台擴展。
- 修改核心Android系統服務，並瞭解在進行修改時需要注意的規則。
- 獲得縮短構建-測試循環的技巧和訣竅。