MIDI Inputs not listed in Android if not added via 'openBluetoothDevice(...)'

[kimchouard]

I just tested this library in iOS, and it works like a charm. ✨

I'm now trying in Android. When I run :

requestMIDIAccess().then((MIDIAccess) => {
  console.log('MIDI Inputs: ', MIDIAccess.inputs); 
  // (...)

It returns an empty map, although the saxophone is connected via Bluetooth.

Any thoughts why? Is there any extra step more than connecting the Bluetooth device that is required in Android to "register" it as a MIDI device? 🤔

Thanks in advance 🙌

[kimchouard]

Alright, it seems like there is a special openBluetoothDevice() function (in contrario of the official openDevice) that needs to be called to init a BTLE device to be listed as a MIDI device (see official android.media.midi spec, then it should be available for other app to use too: m.openBluetoothDevice(bluetoothDevice, callback, handler);

Now working on:

• [UPDATE: it works ✅] Testing the MIDI BLE Connect from the official MIDI test procedure page to init the first MIDI BT connection and see if it works.
• Thinking of how this issue can be fixed while staying in the realm of the Web MIDI API... 🤔

toBeContinued

[motiz88]

This is by design and is discussed some more in #3. If there isn't a Web standard we can follow, my preference would be to create a separate package to provide an API for cross-platform BLE MIDI setup.