getRingerMode method Null safety
Returns current ringerMode.
RingerMode currentRingerMode = await RealVolume.getRingerMode();
Implementation
static Future<RingerMode?> getRingerMode() async {
if (Platform.isIOS) return null;
final int ringerMode =
(await _methodChannel.invokeMethod('getRingerMode')) ?? 3;
return getRingerModefromIndex(ringerMode);
}