This is about physical keyboard hardware connected to an Android device, not the "soft keyboard" that appears on-screen.
I have created configurations for the Mod-DH, and for completeness, vanilla Colemak. ISO/ANSI and wide/non-wide variants are available.
This topic has come up before, e.g. here, but after looking into the subject in more detail, I have found a easier way to support layouts for physical keyboards connected to Android devices. There is an android application (APK) to install in the normal way, which should make the extra keyboard options available.
Instructions and more information are available here.