July 2015
Beginner to intermediate
600 pages
18h 59m
English
book
Android Programming: The Big Nerd Ranch Guide, 2nd Edition
by Bill Phillips, Chris Stewart, Brian Hardy, Kristin Marsicano
Content preview from Android Programming: The Big Nerd Ranch Guide, 2nd Edition
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Writing to the Database
The first step in using your SQLiteDatabase is to write data to it. You will need to insert new rows into the crime table as well as update rows that are already there when Crimes are changed.
Using ContentValues
Writes and updates to databases are done with the assistance of a class called ContentValues. ContentValues is a key-value store class, like Java’s HashMap or the Bundles you have been using so far. However, unlike HashMap or Bundle it is specifically designed to store the kinds of data SQLite can hold.
You will be creating ContentValues instances from Crimes a few times in CrimeLab. Add a private method to take care of shuttling a Crime into a ContentValues. (Remember to use the same two-step ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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