adapterState property
实现 FlutterBluetoothPluginPlatform.adapterState。
参数、默认值、平台差异和推荐值见平台接口文档。
Implementation
@override
Stream<BluetoothAdapterState> get adapterState {
return _eventStream.where((event) => event['type'] == 'adapterState').map(
(event) =>
bluetoothAdapterStateFromString(event['state']?.toString()),
);
}