can i unlock my phone with voice command? i have a samsung galaxy edge with android 7.0. i want to rule my phone with my voice without touching it even if its locked. i mean some basic functions, like unlocking phone. so whenever i say my secret word my phone will unlock, or if i say "how many notifications" it will say "no new notifications" for example (without unlocking phone). is this possible or is there an app for this?

thanks in advance!
I think if you search about it you may find application to do this, but i don't recommend it. because application like that need to turn on mic and process voices coming from it whole the time which shortens battery life.