getAdapterState method
Implementation
@override
Future<BleAdapterState> getAdapterState() async {
final Map<dynamic, dynamic>? response = await methodChannel
.invokeMethod<Map<dynamic, dynamic>>(BleChannelMethod.getAdapterState);
final BleAdapterState state = BleAdapterState.fromNative(
response?[BleChannelKey.adapterState] as int? ?? 0,
);
_adapterState.add(state);
return state;
}