Android Programming Tutorials, 3rd Edition.pdf

Android Programming Tutorials

by M ark L. M urphy

Android Programming T utorials

by Mark L. M urphy

Printed in the United States of America.

CommonsW are books may be purchased in printed (bulk) or digital form for educational or

business use. F or more information, contact direct@commonsware.com .

Printing History:

Mar 2011:V ersion 3.2 ISBN: 978-0-9816780-4-7

The CommonsW are name and logo, “Busy Coder's Guide”,and related trade dress are

trademarks of CommonsW are, LLC.

All other trademarks referenced in this book are trademarks of their respective firms.

The publisher and author(s) assume no responsibility for errors or omissions or for damages

resulting from the use of the information contained herein.

able of Contents

Welcome to the Warescription!. ........................................................xiii

Preface..................................................................................................xv

Welcome to the Book! . ...............................................................................xv

Prerequisites . ...............................................................................................xv

Using the Tutorials . ...................................................................................xvi

Warescription . .........................................................................................xviii

What's New . .............................................................................................xviii

About the "Further Reading" Sections . ....................................................xix

Errata and Book Bug Bounty . ...................................................................xix

Source Code License . ..................................................................................xx

Creative Commons and the Four-to-Free (42F) Guarantee . ..................xxi

Lifecycle of a CommonsWare Book . ........................................................xxi

Roster of Tutorials . ...................................................................................xxii

Your First Android Project. ....................................................................1

Step #1: Create the New Project . ..................................................................1

Step #1: Eclipse . ......................................................................................2

Step #2: Command Line . .......................................................................5

Step #2: Build, Install, and Run the Application in Your Emulator or

Device . ...........................................................................................................6

iii

Step #1: Eclipse . ......................................................................................6

Step #2: Command Line . .......................................................................7

A Simple Form. ......................................................................................11

Step-By-Step Instructions . ..........................................................................11

Step #1: Generate the Application Skeleton . .......................................11

Step #2: Modify the Layout . .................................................................12

Step #3: Support All Screen Sizes ........................................................14

Step #4: Compile and Install the Application . ....................................15

Step #5: Run the Application in the Emulator . ..................................15

Step #6: Create a Model Class . ............................................................16

Step #7: Save the Form to the Model . .................................................16

Extra Credit . .................................................................................................18

Further Reading . .........................................................................................18

A Fancier Form......................................................................................19

Step-By-Step Instructions . ..........................................................................19

Step #1: Switch to a TableLayout . ........................................................19

Step #2: Add a RadioGroup . .................................................................21

Step #3: Update the Model . .................................................................23

Step #4: Save the Type to the Model . .................................................24

Extra Credit . ................................................................................................26

Further Reading . .........................................................................................27

Adding a List.........................................................................................29

Step-By-Step Instructions . .........................................................................29

Step #1: Hold a List of Restaurants . ....................................................29

Step #2: Save Adds to List . ...................................................................30

Step #3: Implement toString() . ............................................................31

Step #4: Add a ListView Widget . .........................................................31

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