Kill all activities when HOME key is pressed android
<p>I have an app which has 4 activities in it.Within app, history activities, i.e. Activities from where I navigated should not be destroyed , so I don't call finish() when I am navigating.  </p>

<p>But when I press HOME button I want to kill all activities , So that When I come back to the app , Index screen or say first activity is displayed instead of previous paused activity.</p>

<p>Problem here seems to be, how to differentiate between backs within an app to HOME button.</p>

<p>I saw  few answers regarding this in other questions. Got more confused.<br>
Is there a way other than intercepting HOME KEY PRESS, because as suggested in other threads,<br>
I should not override HOME key press (as it might have side effects)   </p>
