Saving Data on Android

Chapter 4: Content Provider
: Android also provides an abstraction on top of a 
DB SQLite or memory, that allows different applications to communicate and 
share information safely and securely. You can do this using ContentProvide which 
is one standard component of Android. In this chapter, you'll learn how to create a 
ContentProvider and how to use it to make applications to communicate.
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Chapter 1: Using Files
By Jennifer Bailey
There are many ways to store data in an Android app. One of the most basic ways is 
to use 
files
. Similar to other platforms, Android uses a disk-based file system that 
you can leverage programmatically using the 
File API
. In this chapter, you’ll learn 
how to use files to persist and retrieve information.