Beginning Android 2 [Murphy 2010-03-19](1).pdf

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Begin the journey toward your own
successful Android 2 applications
Android 2
Mark L. Murphy
Beginning
Beginning Android 2
■■■
Mark L. Murphy
i
Beginning Android 2
Copyright © 2010 by Mark L. Murphy
All rights reserved. No part of this work may be reproduced or transmitted in any form or by any
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publisher.
ISBN-13 (pbk): 978-1-4302-2629-1
ISBN-13 (electronic): 978-1-4302-2630-7
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ii
Contents at a Glance
■Contents
at a Glance ................................................................................................................................. iv
■Contents.....................................................................................................................................................
v
■About
the Author..................................................................................................................................... xiii
■Acknowledgments
...................................................................................................................................xiv
■Preface......................................................................................................................................................xv
■Chapter
1: The Big Picture ......................................................................................................................... 1
■Chapter
2: Projects and Targets ................................................................................................................ 5
■Chapter
3: Creating a Skeleton Application ............................................................................................. 17
■Chapter
4: Using XML-Based Layouts...................................................................................................... 23
■Chapter
5: Employing Basic Widgets ....................................................................................................... 29
■Chapter
6: Working with Containers........................................................................................................ 39
■Chapter
7: Using Selection Widgets......................................................................................................... 59
■Chapter
8: Getting Fancy with Lists......................................................................................................... 75
■Chapter
9: Employing Fancy Widgets and Containers ............................................................................. 95
■Chapter
10: The Input Method Framework ............................................................................................ 117
■Chapter
11: Applying Menus.................................................................................................................. 125
■Chapter
12: Fonts................................................................................................................................... 137
■Chapter
13: Embedding the WebKit Browser......................................................................................... 141
■Chapter
14: Showing Pop-Up Messages ................................................................................................ 149
■Chapter
15: Dealing with Threads ......................................................................................................... 155
■Chapter
16: Handling Activity Life Cycle Events .................................................................................... 167
■Chapter
17: Creating Intent Filters ........................................................................................................ 171
■Chapter
18: Launching Activities and Subactivities .............................................................................. 177
■Chapter
19: Handling Rotation............................................................................................................... 185
■Chapter
20: Working with Resources .................................................................................................... 197
■Chapter
21: Using Preferences .............................................................................................................. 213
■Chapter
22: Managing and Accessing Local Databases ........................................................................ 225
■Chapter
23: Accessing Files................................................................................................................... 237
■Chapter
24: Leveraging Java Libraries.................................................................................................. 245
■Chapter
25: Communicating via the Internet......................................................................................... 253
■Chapter
26: Using a Content Provider.................................................................................................... 259
■Chapter
27: Building a Content Provider ............................................................................................... 265
■Chapter
28: Requesting and Requiring Permissions ............................................................................. 275
■Chapter
29: Creating a Service .............................................................................................................. 279
■Chapter
30: Invoking a Service.............................................................................................................. 285
■Chapter
31: Alerting Users via Notifications.......................................................................................... 289
■Chapter
32: Accessing Location-Based Services................................................................................... 295
■Chapter
33: Mapping with MapView and MapActivity........................................................................... 301
■Chapter
34: Handling Telephone Calls ................................................................................................... 311
■Chapter
35: Development Tools ............................................................................................................. 315
■Chapter
36: Handling Multiple Screen Sizes.......................................................................................... 331
■Chapter
37: Dealing with Devices .......................................................................................................... 353
■Chapter
38: Handling Platform Changes................................................................................................ 359
■Chapter
39: Where Do We Go from Here? .............................................................................................. 367
■Index
...................................................................................................................................................... 369
iv
Contents
■Contents
at a Glance....................................................................................... iv
■Contents
.......................................................................................................... v
■About
the Author .......................................................................................... xiii
■Acknowledgments.........................................................................................xiv
■Preface
...........................................................................................................xv
■Chapter
1: The Big Picture............................................................................... 1
Challenges of Smartphone Programming ...............................................................................................................1
What Androids Are Made Of....................................................................................................................................2
Stuff at Your Disposal .............................................................................................................................................3
■Chapter
2: Projects and Targets...................................................................... 5
Pieces and Parts .....................................................................................................................................................5
Creating a Project ...................................................................................................................................................6
Project Structure.....................................................................................................................................................6
Root Contents ....................................................................................................................................................6
The Sweat Off Your Brow...................................................................................................................................7
And Now, the Rest of the Story..........................................................................................................................7
What You Get Out of It........................................................................................................................................8
Inside the Manifest .................................................................................................................................................8
In the Beginning, There Was the Root, And It Was Good ...................................................................................9
Permissions, Instrumentations, and Applications (Oh My!) ...............................................................................9
Your Application Does Something, Right? .......................................................................................................10
Achieving the Minimum ...................................................................................................................................11
Version=Control ...............................................................................................................................................12
Emulators and Targets..........................................................................................................................................12
Virtually There..................................................................................................................................................12
Aiming at a Target ...........................................................................................................................................14
v

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