>
method should essentially clean up all your activity's resources, you'll need to re-instantiate them
when the activity restarts. Yet, you also need to instantiate them when your activity is created
for the first time (when there's no existing instance of the activity). For this reason, you
should usually use the <code><a href="../../../reference/android/app/Activity.html#onStart()">onStart()</a></code> callback method as the counterpart
to the <code><a href="../../../reference/android/app/Activity.html#on