 <code><a href="../../../reference/android/app/Activity.html">Activity</a></code>
instance in system memory when it is stopped, it's possible that you don't need to implement the
<code><a href="../../../reference/android/app/Activity.html#onStop()">onStop()</a></code> and <code><a href="../../../reference/android/app/Activity.html#onRestart()">onRestart()</a></code> (or even <code><a href="../../../reference/android/app/Activity.html#onStart()">onStart()</a></code> methods at all. For most activities that a