 <p>If you had the some problem as I, it's very simple. When you to go save the preferences, save like:</p> <pre><code>SharedPreferences sp = getSharedPrefenreces("Preference",MODE_PRIVATE); </code></pre> <p>And no:</p> <pre><code> SharedPreferences sp = getSharedPrefenreces("Preference's name",Context.MODE_PRIVATE); </code></pre> <p>I know how so much is important the SharedPrefenrences in some cases.</p>