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import 'package:badge/control/scanner_controller.dart';
import 'package:badge/device_details.dart';
import 'package:badge/device_scan_select.dart';
import 'package:badge/model/device.dart';
import 'package:flutter/material.dart';
import 'package:logger/logger.dart';
import 'package:permission_handler/permission_handler.dart';
var logger = Logger();
class ScanPage extends StatefulWidget {
const ScanPage({super.key, required this.title, required this.deviceScanner});
// Original doc: Fields in a Widget subclass are always marked "final".
final String title;
final ScannerController deviceScanner;
@override
State<ScanPage> createState() => _ScanPageState();
}
class _ScanPageState extends State<ScanPage> {
Device? selectedDevice;
void _doConnect() async {
Device? dev = selectedDevice;
if (dev == null) return;
//???
Navigator.push(
context,
MaterialPageRoute(builder: (context) => DeviceDetailsScreen(device: dev)),
);
}
void _doScan() async {
setState(() {
selectedDevice = null;
});
// ...
await widget.deviceScanner.startScan();
}
Future getPermissions() async {
try {
await Permission.bluetooth.request();
} catch (e) {
logger.e(e.toString());
}
}
@override
void initState() {
super.initState();
getPermissions();
}
@override
Widget build(BuildContext context) {
return StreamBuilder(
stream: widget.deviceScanner.statusStream,
initialData: ScanStatus.idle,
builder: (context, asyncSnapshot) {
bool isScanning = asyncSnapshot.data == ScanStatus.scanning;
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: Text(widget.title),
),
body: Center(
child: Column(
// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
// action in the IDE, or press "p" in the console), to see the
// wireframe for each widget.
mainAxisAlignment: MainAxisAlignment.center,
spacing: 24,
children: <Widget>[
SizedBox(height: 15),
Row(
mainAxisAlignment: MainAxisAlignment.center,
spacing: 15.0,
children: [
ElevatedButton(
onPressed: isScanning ? null : _doScan,
child: isScanning
? Text("Scanning...")
: Text("Start scan"),
),
ElevatedButton(
onPressed: (selectedDevice == null || isScanning)
? null
: _doConnect,
child: Text("Connect"),
),
],
),
Expanded(
child: StreamBuilder(
stream: widget.deviceScanner.scanResultsStream,
initialData: <Device>[],
builder: (context, asyncSnapshot) {
return DeviceScanSelection(
items: asyncSnapshot.data ?? [],
onItemSelected: (item) {
setState(() => selectedDevice = item);
},
);
},
),
),
],
),
),
);
},
);
}
}
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