PIs.
A <code><a href="../../../reference/android/content/SharedPreferences.html">SharedPreferences</a></code> object points to a file containing
key-value pairs and provides simple methods to read and write them. Each
<code><a href="../../../reference/android/content/SharedPreferences.html">SharedPreferences</a></code> file is
managed by the framework and can be private or shared.</p>

<p>This class shows you how to use the <code><a href="../../../reference/android/content/SharedPreferences.html">SharedPref