SystemUI launches a full-screen intent only when a notification is first
posted, never on an update. The alarm service went foreground with a
placeholder that had none and added it in the update, so a locked phone
could ring behind a black screen. The placeholder now carries it.
Timers had no full-screen screen at all. A finished timer now opens
TimerRingActivity over the lock screen with Stop and +1 min, posted
under a second notification id so the expiry is a fresh post. It only
does so while the timer is sounding, so it never covers a ringing
alarm's screen or wakes the display for an already auto-silenced timer.
Fixes#15
makiolaj
badd7aaa54