getSources method
Gets the midi sources currently connected
Implementation
Future<List<MidiSourcePort>> getSources() async {
final List<Map<dynamic, dynamic>> info = await (MidiPlatform.instance
.getSources() as FutureOr<List<Map<dynamic, dynamic>>>);
return info.map((Map<dynamic, dynamic> device) {
return MidiSourcePort(device[Constants.id],
manufacturer: device[Constants.manufacturer],
name: device[Constants.name],
version: device[Constants.version]);
}).toList();
}