I’m also looking for a MIDI Processing library that works inside an android device.
A year ago I tried with midibus which is incompatible with android. I created a sequencer in processing but I can not get a midi usb port on the android device to send notoON / noteOFF and CC messages.
I have easy transcribed the sequencer inside android studio but I’m not able to add what’s on android.media.midi.
The purpose is to use the touch screen with the processing sequencer i built to control with an android device a musical hardware with midi input.
Does anyone know if wesen/rwmidi work also inside android devices via USB?