USE_FULL_SCREEN_INTENT / SYSTEM_ALERT_WINDOW not triggering background screen launch for secondary package installed from Play Store
Hi everyone,
I have two separate apps (different Package Names) that utilize background full-screen triggers / overlays (similar to an alarm clock app using USE_FULL_SCREEN_INTENT or SYSTEM_ALERT_WINDOW).
While App 1 functions correctly and launches the activity over the lock screen when triggered from the background, App 2 (installed as a new package from the Play Store) fails to bring the activity to the foreground/screen automatically when triggered from the background, even though it builds and runs fine locally.
My questions regarding Android OS behavior:
-
Does Android OS (especially Android 14+) automatically revoke or default-deny background full-screen launches (
USE_FULL_SCREEN_INTENT) for newly installed secondary packages unless explicitly granted in Special App Access? -
Is there a priority conflict or system-level restriction when two packages on the same device attempt to use full-screen intents or overlay triggers?
