Files
scan-ktp/lib/screen/scan/scan_screen.dart

409 lines
13 KiB
Dart

import 'dart:convert';
import 'dart:io';
import 'package:camera/camera.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:image/image.dart' as img;
import '../../app/route.dart';
import '../../app/constant.dart';
import '../../model/edit_person_model.dart';
import '../../model/sex_model.dart';
import '../../provider/current_user_provider.dart';
import '../../provider/scan_provider.dart';
import '../../widget/customsnackbarwidget.dart';
import '../home/list_riwayat_scan_provider.dart';
import 'upload_scan_provider.dart';
class ScanScreen extends HookConsumerWidget {
const ScanScreen({super.key});
@override
Widget build(BuildContext context, WidgetRef ref) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual, overlays: [
SystemUiOverlay.bottom,
]);
final cameraController = useState<CameraController?>(null);
final initializeControllerFuture = useState<Future<void>?>(null);
final capturedImage = useState<XFile?>(null);
final croppedImage = useState<File?>(null);
final isLoading = useState<bool>(false);
final isLoadingUpload = useState<bool>(false);
final currentUser = ref.watch(currentUserProvider);
final host = currentUser?.host ?? "";
final userId = currentUser?.model.userId ?? "";
final selectedResolution =
useState<ResolutionPreset>(ResolutionPreset.medium);
useEffect(() {
Future<void> initializeCamera() async {
final cameras = await availableCameras();
cameraController.value = CameraController(
cameras[0],
// ResolutionPreset.max,
// ResolutionPreset.medium,
selectedResolution.value);
initializeControllerFuture.value = cameraController.value!.initialize();
await initializeControllerFuture.value;
await cameraController.value!.setFlashMode(FlashMode.off);
}
initializeCamera();
return null;
}, []);
Future<void> initializeCameraAfterChangeResolution() async {
final cameras = await availableCameras();
cameraController.value = CameraController(
cameras[0],
// ResolutionPreset.max,
// ResolutionPreset.medium,
selectedResolution.value);
initializeControllerFuture.value = cameraController.value!.initialize();
await initializeControllerFuture.value;
await cameraController.value!.setFlashMode(FlashMode.off);
}
Future<File> rotateAndCropImage(File imageFile) async {
Uint8List imageBytes = await imageFile.readAsBytes();
img.Image? original = img.decodeImage(imageBytes);
if (original == null) return imageFile;
img.Image rotated = img.bakeOrientation(original);
int width = rotated.width;
int height = rotated.height;
bool isPortrait = height > width;
int cropWidth, cropHeight;
if (isPortrait) {
cropHeight = (height * 0.7).toInt();
cropWidth = (cropHeight ~/ 1.59).toInt();
} else {
cropWidth = (width * 0.7).toInt();
cropHeight = (cropWidth ~/ 1.59).toInt();
}
int left = ((width - cropWidth) ~/ 2).toInt();
int top = ((height - cropHeight) ~/ 2).toInt();
img.Image cropped = img.copyCrop(rotated,
x: left, y: top, width: cropWidth, height: cropHeight);
File croppedFile = File('${imageFile.path}_cropped.jpg');
await croppedFile.writeAsBytes(img.encodeJpg(cropped));
return croppedFile;
}
Future<File> rotateImage(File imageFile) async {
Uint8List bytes = await imageFile.readAsBytes();
img.Image? image = img.decodeImage(bytes);
if (image == null) return imageFile;
img.Image rotated = img.copyRotate(image, angle: -90);
File rotatedFile = File('${imageFile.path}_rotated.jpg');
await rotatedFile.writeAsBytes(img.encodeJpg(rotated));
return rotatedFile;
}
Future<void> captureAndCropImage() async {
try {
isLoading.value = true;
await initializeControllerFuture.value;
// Ambil gambar dari kamera
final image = await cameraController.value!.takePicture();
File cropped = await rotateAndCropImage(File(image.path));
// Rotate gambar setelah cropping
File rotatedImage = await rotateImage(cropped);
// Convert to grayscale
Uint8List bytes = await rotatedImage.readAsBytes();
img.Image? coloredImage = img.decodeImage(bytes);
if (coloredImage != null) {
img.Image grayscaleImage = img.grayscale(coloredImage);
rotatedImage.writeAsBytesSync(img.encodeJpg(grayscaleImage));
}
// Simpan hasil yang sudah di-crop dan di-rotate
capturedImage.value = image;
croppedImage.value = rotatedImage;
// post ke BE
Uint8List finalBytes = await croppedImage.value!.readAsBytes();
String base64String = base64Encode(finalBytes);
ref.read(uploadScanProvider.notifier).uploadScan(
host: host,
base64File: base64String,
userId: userId,
);
} catch (e) {
print("Error capturing image: $e");
} finally {
isLoading.value = false;
}
}
// listRiwayProvider
ref.listen(listRiwayatScanProvider, (prev, next) {
if (next is ListRiwayatScanStateLoading) {
// isLoading.value = true;
} else if (next is ListRiwayatScanStateError) {
// isLoading.value = false;
// errorMessage.value = next.message;
snackbarWidget(
context,
next.message,
snackbarType.error,
Duration(seconds: 3),
);
} else if (next is ListRiwayatScanStateDone) {
// isLoading.value = false;
Navigator.of(context).pop();
Navigator.of(context).pushNamed(
editScanRoute,
);
}
});
// proses upload
ref.listen(uploadScanProvider, (prev, next) {
if (next is UploadScanStateLoading) {
isLoadingUpload.value = true;
} else if (next is UploadScanStateError) {
isLoadingUpload.value = false;
// errorMessage.value = next.message;
print("Err : ${next.message}");
snackbarWidget(
context,
next.message,
snackbarType.error,
Duration(seconds: 3),
);
} else if (next is UploadScanStateDone) {
isLoadingUpload.value = false;
ref.read(selectedPersonIdx.notifier).state = next.model[0].personID;
// set SEX
ref.read(eSexSelected.notifier).state = SexModel(
M_SexID: next.model[0].personSex,
M_SexCode: "",
m_sexname: next.model[0].m_sexname,
M_SexNameLang: "");
ref.read(selectedEdit.notifier).state = EditPersonModel(
personID: next.model[0].personID,
personNIK: next.model[0].personNIK,
personName: next.model[0].personName,
m_sexname: next.model[0].m_sexname,
personDob: next.model[0].personDob,
personSex: next.model[0].personSex,
personUrl: next.model[0].personUrl,
);
ref.read(listRiwayatScanProvider.notifier).listRiwayatScan(
host: host,
userId: userId,
);
}
});
// loading proses upload useEffect
useEffect(() {
WidgetsBinding.instance.addPostFrameCallback((timestamp) {
if (isLoadingUpload.value == true) {
snackbarWidget(
context,
'Sedang Upload Foto...',
snackbarType.warning,
Duration(seconds: 3),
);
}
});
return () {};
}, [isLoadingUpload.value]);
return Scaffold(
appBar: AppBar(
title: Text(
'Posisi Foto Landscape',
style: Constant.titlePosisiHP(context: context),
),
automaticallyImplyLeading: false,
actions: [
DropdownButton<ResolutionPreset>(
value: selectedResolution.value,
onChanged: (ResolutionPreset? newValue) {
if (newValue != null) {
selectedResolution.value = newValue;
initializeCameraAfterChangeResolution();
}
},
items: ResolutionPreset.values.map((ResolutionPreset value) {
return DropdownMenuItem<ResolutionPreset>(
value: value,
child: Text(value.toString().split('.').last),
);
}).toList(),
underline: SizedBox.shrink(),
),
],
),
backgroundColor: Colors.black.withOpacity(0.5),
body: Stack(
children: [
if (cameraController.value != null && croppedImage.value == null)
FutureBuilder<void>(
future: initializeControllerFuture.value,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.done) {
return CameraPreview(cameraController.value!);
} else {
return const Center(child: CircularProgressIndicator());
}
},
),
// jika sudah ada foto
if (croppedImage.value != null) ...[
Container(
width: double.infinity,
height: 300,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12),
),
child: ClipRRect(
borderRadius: BorderRadius.circular(12),
child: Image.file(
croppedImage.value!,
fit: BoxFit.contain,
),
),
),
] else ...[
// bingkai foto
Positioned.fill(
child: CustomPaint(
painter: OverlayPainter(),
),
),
],
// loading
if (isLoading.value)
Positioned.fill(
child: Container(
color: Colors.black.withOpacity(0.5),
child: const Center(
child: CircularProgressIndicator(
color: Colors.white,
),
),
),
),
],
),
bottomNavigationBar: BottomAppBar(
height: Constant.getActualYPhone(
context: context,
y: 100,
),
shape: const CircularNotchedRectangle(),
child: Row(
children: [
ElevatedButton.icon(
onPressed: () {
capturedImage.value = null;
croppedImage.value = null;
Navigator.of(context).pop();
},
icon: Icon(
Icons.arrow_back,
size: 17,
color: Constant.textWhite,
),
label: Text(
'Kembali',
style: Constant.cardText(context: context).copyWith(
color: Constant.textWhite,
),
),
style: ElevatedButton.styleFrom(
backgroundColor: Constant.textCardGrey,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8),
),
elevation: 8,
shadowColor: Constant.bgButton.withOpacity(0.24),
),
),
const Spacer(),
// scan
ElevatedButton.icon(
onPressed: captureAndCropImage,
icon: Icon(
Icons.camera,
size: 17,
color: Constant.textWhite,
),
label: Text(
'Foto',
style: Constant.cardText(context: context).copyWith(
color: Constant.textWhite,
),
),
style: ElevatedButton.styleFrom(
backgroundColor: Constant.bgButton,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8),
),
elevation: 8,
shadowColor: Constant.bgButton.withOpacity(0.24),
),
),
],
),
),
);
}
}
class OverlayPainter extends CustomPainter {
@override
void paint(Canvas canvas, Size size) {
final paint = Paint()
..color = Colors.black.withOpacity(0.6)
..style = PaintingStyle.fill;
final borderPaint = Paint()
..color = Colors.yellow
..strokeWidth = 4
..style = PaintingStyle.stroke;
double boxHeight = size.height * 0.7;
double boxWidth = boxHeight / 1.59;
double left = (size.width - boxWidth) / 2;
double top = (size.height - boxHeight) / 2;
Path path = Path()
..addRect(Rect.fromLTWH(0, 0, size.width, size.height))
..addRect(Rect.fromLTWH(left, top, boxWidth, boxHeight))
..fillType = PathFillType.evenOdd;
canvas.drawPath(path, paint);
canvas.drawRect(Rect.fromLTWH(left, top, boxWidth, boxHeight), borderPaint);
}
@override
bool shouldRepaint(CustomPainter oldDelegate) => false;
}