MIF_E31222451/lib/qr_scanner.dart

286 lines
10 KiB
Dart

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';
import 'package:mobile_scanner/mobile_scanner.dart';
import 'package:qr_scanner_overlay/qr_scanner_overlay.dart';
import 'package:ternak/animal_detail.dart';
class QRScanner extends StatefulWidget {
final User user;
const QRScanner({super.key, required this.user});
@override
State<QRScanner> createState() => _QRScannerState();
}
class _QRScannerState extends State<QRScanner> {
bool isScanCompleted = false;
MobileScannerController controller = MobileScannerController();
void closeScreen() {
isScanCompleted = false;
}
@override
void dispose() {
controller.dispose();
super.dispose();
}
void _getHewan(BarcodeCapture barcodes) async {
if (!isScanCompleted) {
String code = '';
for (var element in barcodes.barcodes) {
code = element.rawValue ?? '-----';
}
isScanCompleted = true;
controller.stop();
try {
var docSnapshot = await FirebaseFirestore.instance
.collection("hewan")
.doc(code)
.get();
if (!mounted) return;
if (docSnapshot.exists) {
// Kalau data ada, masuk ke detail
Navigator.push(
context,
MaterialPageRoute(
builder: (context) {
return AnimalDetail(
user: widget.user,
doc: docSnapshot,
);
},
),
).then((value) => setState(() {
closeScreen();
controller.start();
}));
} else {
// Kalau data tidak ada, tampilkan snackbar
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Data hewan tidak ditemukan.'),
backgroundColor: Colors.red,
duration: Duration(seconds: 2),
),
);
// Reset scanner supaya bisa scan lagi
setState(() {
closeScreen();
controller.start();
});
}
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Data tidak ditemukan'),
backgroundColor: Colors.red,
duration: Duration(seconds: 2),
),
);
setState(() {
closeScreen();
controller.start();
});
}
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
width: double.infinity,
decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: [Color(0xFFF5F7FA), Color(0xFFE4EDF5)],
),
),
child: SafeArea(
child: Column(
children: <Widget>[
// Padding(
// padding: const EdgeInsets.all(16.0),
// // child: Row(
// // children: [
// // IconButton(
// // icon: const Icon(Icons.arrow_back, color: const Color(0xFF1D91AA)),
// // onPressed: () => Navigator.of(context).pop(),
// // ),
// // const Expanded(
// // child: Text(
// // "QR Scanner",
// // textAlign: TextAlign.center,
// // style: TextStyle(
// // color: const Color(0xFF1D91AA),
// // fontSize: 20,
// // fontWeight: FontWeight.bold,
// // ),
// // ),
// // ),
// // const SizedBox(width: 40),
// // ],
// // ),
// ),
Expanded(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
padding: const EdgeInsets.symmetric(
horizontal: 32, vertical: 16),
decoration: BoxDecoration(
color: Colors.white.withOpacity(0.9),
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
spreadRadius: 1,
blurRadius: 5,
offset: const Offset(0, 2),
),
],
),
child: const Column(
children: [
// Icon(
// Icons.qr_code_scanner,
// size: 40,
// color: const Color(0xFF1D91AA),
// ),
SizedBox(height: 16),
Text(
"Arahkan QR Code ke area scan",
style: TextStyle(
color: Color(0xFF333333),
fontSize: 18,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
SizedBox(height: 8),
Text(
"Pemindaian akan dimulai secara otomatis",
style: TextStyle(
color: Color(0xFF666666),
fontSize: 14,
),
textAlign: TextAlign.center,
),
],
),
),
],
),
),
Expanded(
flex: 4,
child: Container(
margin: const EdgeInsets.all(16),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(24),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.2),
spreadRadius: 1,
blurRadius: 10,
offset: const Offset(0, 3),
),
],
),
clipBehavior: Clip.hardEdge,
child: Stack(
children: <Widget>[
MobileScanner(
controller: controller,
onDetect: (barcodes) {
if (!isScanCompleted) {
_getHewan(barcodes);
}
},
),
QRScannerOverlay(
overlayColor: Colors.black.withOpacity(0.5),
borderColor: const Color(0xFF1D91AA),
borderRadius: 24,
scanAreaSize: const Size.square(280),
),
Positioned(
bottom: 20,
left: 0,
right: 0,
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
padding: const EdgeInsets.symmetric(
horizontal: 16, vertical: 8),
decoration: BoxDecoration(
color: Colors.white.withOpacity(0.8),
borderRadius: BorderRadius.circular(30),
),
child: const Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
Icons.info_outline,
size: 18,
color: Color(0xFF1D91AA),
),
SizedBox(width: 8),
Text(
"Scanning...",
style: TextStyle(
color: Color(0xFF1D91AA),
fontWeight: FontWeight.w600,
),
),
],
),
),
],
),
),
],
),
),
),
Container(
margin: const EdgeInsets.only(bottom: 24),
padding: const EdgeInsets.all(16),
child: ElevatedButton.icon(
onPressed: () {
setState(() {
closeScreen();
controller.start();
});
},
icon: const Icon(Icons.refresh),
label: const Text("Reset Scanner"),
style: ElevatedButton.styleFrom(
backgroundColor: const Color(0xFF1D91AA),
foregroundColor: Colors.white,
padding: const EdgeInsets.symmetric(
vertical: 12, horizontal: 24),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(30),
),
),
),
),
],
),
),
),
);
}
}