This plugin provides the same functionality as the accessibility service built into previous releases of Keepass2Android (up to version 1.02). In Keepass2Android 1.03, the feature was removed because Google only accepts the use of accessibility services for helping people with disabilities starting mid of December 2017.
The plugin can only be provided outside Google Play (for the same reason that made me extract it into a separate app).
To install it, please download the binary application package (.apk) file and install it. Note that you have to allow installation from "unknown sources".
Changelog:
v1.01: added strings to display title&description
v1.02: fix issue with volume slider not disappearing.