Apress Pro Android 4 [Komatineni & MacLean 2012-03-05](1).pdf

For your convenience Apress has placed some of the front

matter material after the index. Please use the Bookmarks

and Contents at a Glance links to access them.

Contents at a Glance

Contents ............................................................................................................. vi

About the Authors............................................................................................. xxi

About the Technical Reviewers ....................................................................... xxii

Acknowledgments .......................................................................................... xxiv

Preface ............................................................................................................ xxv

■ Chapter 1: Introducing the Android Computing Platform................................ 1

■

Chapter 2: Setting Up Your Development Environment ................................. 23

■ Chapter 3: Understanding Android Resources .............................................. 51

■

Chapter 4: Understanding Content Providers ................................................ 79

■ Chapter 5: Understanding Intents................................................................ 113

■

Chapter 6: Building User Interfaces and Using Controls ............................. 135

■ Chapter 7: Working with Menus .................................................................. 203

■

Chapter 8: Fragments for Tablets and More................................................ 229

■ Chapter 9: Working with Dialogs................................................................. 261

■

Chapter 10: Exploring ActionBar ................................................................. 281

■ Chapter 11: Advanced Debugging and Analysis.......................................... 315

■

Chapter 12: Responding to Configuration Changes ..................................... 331

■ Chapter 13: Working with Preferences and Saving State ........................... 339

■

Chapter 14: Exploring Security and Permissions ........................................ 363

■ CONTENTS AT A GLANCE

■

Chapter 15: Building and Consuming Services ........................................... 383

■ Chapter 16: Exploring Packages ................................................................. 441

■

Chapter 17: Exploring Handlers................................................................... 469

■ Chapter 18: Exploring the AsyncTask.......................................................... 489

■

Chapter 19: Broadcast Receivers and Long-Running Services ................... 503

■ Chapter 20: Exploring the Alarm Manager .................................................. 539

■

Chapter 21: Exploring 2D Animation ........................................................... 555

■ Chapter 22: Exploring Maps and Location-based Services ......................... 599

■

Chapter 23: Using the Telephony APIs ........................................................ 641

■ Chapter 24: Understanding the Media Frameworks.................................... 659

■

Chapter 25: Home Screen Widgets .............................................................. 709

■ Chapter 26: Exploring List Widgets ............................................................. 745

■

Chapter 27: Touch Screens.......................................................................... 775

■ Chapter 28: Implementing Drag and Drop ................................................... 813

■

Chapter 29: Using Sensors .......................................................................... 833

■ Chapter 30: Exploring the Contacts API ...................................................... 873

■

Chapter 31: Deploying Your Application: Android Market and Beyond ....... 927

Index ............................................................................................................... 951

Chapter

Introducing the Android

Computing Platform

Computing is more accessible than ever before. Handheld devices have transformed

into computing platforms. Be it a phone or a tablet, the mobile device is now so capable

of general-purpose computing that it’s becoming the real personal computer (PC). Every

traditional PC manufacturer is producing devices of various form factors based on the

Android OS. The battles between operating systems, computing platforms,

programming languages, and development frameworks are being shifted and reapplied

to mobile devices.

We are also seeing a surge in mobile programming as more and more IT applications

start to offer mobile counterparts. In this book, we’ll show you how to take advantage of

your Java skills to write programs for devices that run on Google’s Android platform

( http://developer.android.com/index.html ), an open source platform for mobile and

tablet development.

NOTE: We are excited about Android because it is an advanced Java-based platform that

introduces a number of new paradigms in framework design (even with the limitations of a

mobile platform).

In this chapter, we’ll provide an overview of Android and its SDK, give a brief overview of

key packages, introduce what we are going to cover in each chapter, show you how to

take advantage of Android source code, and highlight the benefits of programming for

the Android platform.

A New Platform for a New Personal Computer

The Android platform embraces the idea of general-purpose computing for handheld

devices. It is a comprehensive platform that features a Linux-based operating system

stack for managing devices, memory, and processes. Android’s Java libraries cover

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