onSaveInstanceState when click back button in Android
<p>Hello
i have an activity that is called at runtime in an Android App: when the user clicks the back button the Activity is destroyed and i override the onSaveInstanceState method to save outState to be retrieved in a second time but onSaveInstanceState is never called when the user click the back button.</p>

<p>Do you know why this happens?</p>

<p>Thanks in advance</p>
