Android activity over default lock screen

How can I display an Activity or Dialog to be visible over the lock screen?

I have already tried displaying my lock activity when screen turns on by setting various window type in Activity.onCreate() method:

TYPE_PRIORITY_PHONE
TYPE_SYSTEM_ALERT
TYPE_KEYGUARD

and others together with SYSTEM_ALERT_WINDOW and INTERNAL_SYSTEM_WINDOW permissions.

My activity is visible after I unlock the device.

UPDATE:

I actually already managed to display my own Activity instead of default lock screen. It work perfectly unless you use HOME button.