We try to keep our books accurate, but sometimes mistakes creep in. This page lists the errors submitted by our astute readers. If you've found a new error, please submit it.

The latest version of the book is P1.6, released almost 5 years ago. If you've bought a PDF of the book and would like to upgrade it to this version (for free), visit your home page.

Key: Typo Tech. Error Suggestion Not a problem Next edition

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(To find out what version you have, look at the copyright page, a few pages in from the front of the book. If it says (say) 'Second Printing', then here it'll be P2.0. If there are interim PDF releases in that printing, they'll be 2.1, 2.2, and so on.)

PDF Paper Description Found in Fixed in
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#50119: Page views or unique viiotsrs are bad measurements because they focus on abstract metrics instead of the valuable customer behavior that gener...more...
P1.6
01-Nov-12
51
#41732: Source code for strings.xml has <!-- --> comments located at the very top above starting "<?xml version="1.0" encoding="utf-8"?>" line. Such X...more...
P1.6
06-Dec-09
63
#50450: Hi i have seen that in this book there is no code to play continue the sudoku game. so please check and update that. Also when someone click ...more...
P1.6
09-Jan-13
79
#41085: The line of code setTitle(R.string.keypad_title); is missing from the Keypad onCreate method. It should be the first line of code print...more...
B2.0
25-Oct-09
91
#40683: Extra comma in the code for the array c[]... note the trailing "," prior to the "};" int c[] = { getResources().getColor(R.color.puzzle_hin...more...
P1.6
07-Sep-09
102

#41092: The Music class's stop method takes a Context object as a parameter, but that object is never referenced in the body of the method.--Bill Cruise

B2.0
26-Oct-09
121
#41257: The end of section 7.1 needs to include adding the internet permissions to the AndroidManifest.xml in order to run (just like is mentioned on ...more...
P1.6
08-Nov-09
128

#46792: The download code sample on page 128 contains a technical error: package org.example.video; should be package org.example.sudoku;--Jeroen Minnee

P1.6
07-Apr-11
154

#41653: Text at the bottom of the page is hidden by the footer.--Trevor Bramble

P1.6
29-Nov-09
233
#40370: Simple typo, last line of the section just before "C.3 Publishing" it says "you'll have a ..apk file" where there should be only one period (a...more...
P1.6
07-Aug-09
235
#40421: "Regardless of the change, you must click the Publish button for your changes to be visible to Android Market users. If you click Save instead...more...
P1.6
10-Aug-09
238
#40371: Page 238 is the first page of the index, and has references to page numbers with an 'f' after them. It is not explained, but I assume these ar...more...
P1.6
07-Aug-09