如何将来自信标插件的流数据显示为小部件列表

Question

 @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Flutter Beacon'),
        ),
        body: _beacons == null
            ? Center(child: CircularProgressIndicator())
            : ListView(
          children: ListTile.divideTiles(
              context: context,
              tiles: _beacons.map((beacon) {

                if(beacon.macAddress == "MAC_ADDRESS_FORMAT") {
                  print(beacon.macAddress);
                }
                return ListTile(
                  title: Text(beacon.macAddress),
                  subtitle: new Row(
                    mainAxisSize: MainAxisSize.max,
                    children: <Widget>[
                      Flexible(
                          child: Text(
                              'Major: ${beacon.major}\nMinor: ${beacon.minor}',
                              style: TextStyle(fontSize: 13.0)),
                          flex: 1,
                          fit: FlexFit.tight),
                      Flexible(
                          child: Text(
                              'Accuracy: ${beacon.accuracy}m\nRSSI: ${beacon.rssi}',
                              style: TextStyle(fontSize: 13.0)),
                          flex: 2,
                          fit: FlexFit.tight)
                    ],
                  ),
                );
              })).toList(),
        ),
      ),
    );
  }

我需要将流数据显示到小部件列表。有人可以帮我吗？