Kill all activities when HOME key is pressed android

Question

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

Answer 1

On main activity add:

android:launchMode="singleTask" android:clearTaskOnLaunch="true"

On the others add:

android:finishOnTaskLaunch="true"

This way it will kill off any activity when returning to the app after being in background.