aug5_with_TextField

  import 'package:flutter/material.dart';
  import 'package:flutter_blue/flutter_blue.dart';

  void main() => runApp(const MaterialApp(
    debugShowCheckedModeBanner: false,
    home: Home(),
  ));


  class Home extends StatelessWidget {
    const Home({Key? key}) : super(key: key);

    @override
    Widget build(BuildContext context) {
      FlutterBlue flutterBlue = FlutterBlue.instance;
      return Scaffold(
        appBar: AppBar(
          title: Wrap(
            direction: Axis.horizontal,
            crossAxisAlignment: WrapCrossAlignment.center,
            children: const <Widget>[
              Icon(
                  Icons.bluetooth,
                //color : Colors.blue,
              ),
              Text(
                  'My BLE',
                //style : TextStyle(color : Colors.white),
              ),
            ],
          ),
          centerTitle: true,
          //backgroundColor: Colors.black,
          backgroundColor: Colors.white54,
        ),
        body: Center(
          child : Column(
            mainAxisAlignment : MainAxisAlignment.center,
            children: [
              Padding(
                padding: const EdgeInsets.all(15.0),
                child: ElevatedButton(
                  onPressed : (){
                    flutterBlue.startScan(timeout: Duration(seconds: 4));
                  },
                  child : Text(
                      'Turn on Bluetooth'
                  ),
                  style : ElevatedButton.styleFrom(
                    primary: Colors.grey,
                    padding: EdgeInsets.symmetric(horizontal: 30, vertical: 20),
                  ),
                ),
              ),
              Padding(
                padding: const EdgeInsets.all(15.0),
                  child : TextField(
                    decoration: InputDecoration(
                      border: OutlineInputBorder(),
                      focusColor: Colors.red,
                      labelText: 'User Name',
                      labelStyle: TextStyle(color: Colors.white),
                      hintText: 'Enter Your Name',
                  ),
                ),
              ),
          ],
          ),
        ),
        backgroundColor: Colors.grey[800],
        floatingActionButton: const FloatingActionButton(
          child: Text(
            'click me',
            textAlign: TextAlign.center ,
          ),
          onPressed: null,
          backgroundColor: Colors.grey,
        ),
      );
    }
  }