TYPE_SYSTEM_OVERLAY in ICS
In Honeycomb I was able to create a system overlay with TYPE_SYSTEM_OVERLAY and receive touches with FLAG_WATCH_OUTSIDE_TOUCH.
Now ICS has changed something. I can still create the system overlay, but i can't get touches.
Now, i am able to create the same with TYPE_SYSTEM_ALERT and get touches, but it just catches the touchevents, and not passing them on like in Honeycomb.
Any idea's?
Kind regards
Answer
To create an overlay view, when setting up the LayoutParams
DON'T set the type to TYPE_SYSTEM_OVERLAY.
Instead set it to TYPE_PHONE.
Use the following flags:
FLAG_NOT_TOUCH_MODAL
FLAG_WATCH_OUTSIDE_TOUCH
FLAG_NOT_TOUCH_MODAL << I found this one to be quite important. Without it, focus is given to the overlay and soft-key (home, menu, etc.) presses are not passed to the activity below.