I am new to Bluetooth and this is the first time I am trying it, so I am trying to develop an application that scans for nearby Bluetooth devices and connects, I am using flutter_blue package and I wrote this simple code to scan for devices, and there are two devices near it but when I run the app (real phone) it does not discover them, I want to know what is wrong with my code, I need help please.

class _MyHomePageState extends State<MyHomePage> {

final FlutterBlue flutterBlue= FlutterBlue.instance;
  @override
  Widget build(BuildContext context) {
  return Scaffold(
   appBar: AppBar(title: Text("BLE"),),
   body: StreamBuilder<BluetoothState>(
     stream:flutterBlue.state,
     builder: (context, snapshot){
       if(snapshot.data == BluetoothState.on)
         {
           return ScanForDevices(flutterBlue: flutterBlue,);
           //return Center(child: Text("${snapshot.data!.toString()}"),);
         }
        else if(snapshot.hasError ||snapshot.data == BluetoothState.unauthorized)
         {
           return Center(child: Text("Error"),);
         }
         else{
           return Center(child: CircularProgressIndicator(),);
          }
         },
       ),
     );
    } 
   }

 class _ScanForDevicesState extends State<ScanForDevices> {
   late List<ScanResult> result ;
  @override
   void initState() {
   // TODO: implement initState
    super.initState();
    widget.flutterBlue.startScan();
    // scanning();
    }
   scanning() {

      widget.flutterBlue.scanResults.listen((event) {
      for(ScanResult r in event)
        {
          result.add(r);
          print(r.device.id.toString() + "\n");
        }
    });
  }

 @override
  Widget build(BuildContext context) {
   return Scaffold(
    body: StreamBuilder<List<ScanResult>>(
     stream:FlutterBlue.instance.scanResults,
     builder: (context, snapshot){
       if(snapshot.hasData)
         {
           return ListView(
             // children: snapshot.data!.map((e)  {
            //   return  Text("${e.device.id.toString()}");
            // }).toList(),
              children: snapshot.data!.map((e) =>  ListTile(
              leading: IconButton(
                 icon: Icon(Icons.present_to_all_sharp),
                 onPressed: (){e.device.connect(timeout: Duration(seconds: 4),);},),
                  subtitle: Text("${e.device.name }\n ${e.device.id.id}"),
                  title: Text(e.device.id.toString()))).toList()
            // result.map((e) {
            //   return Text(e.device.id.toString());
            // }).toList(),
          );
        }
      if(snapshot.hasError)
        {
          return Text("Error");
        }
      else {
        return CircularProgressIndicator();
      }

    },
  ),
  );
 } 
 }

and it shows these log messages enter image description here