mirror of
https://git.meshkee.com/applications/cssd.git
synced 2026-10-13 12:08:54 +03:30
commit
This commit is contained in:
erfan hayat'bakhsh
@@ -0,0 +1,313 @@
|
||||
import 'dart:async';
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:camera/camera.dart';
|
||||
import 'package:cssd/providers/test_results.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:path_provider/path_provider.dart';
|
||||
import 'package:provider/provider.dart';
|
||||
|
||||
class CaptureImage extends StatefulWidget {
|
||||
@override
|
||||
_CaptureImageState createState() {
|
||||
return _CaptureImageState();
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns a suitable camera icon for [direction].
|
||||
IconData getCameraLensIcon(CameraLensDirection direction) {
|
||||
switch (direction) {
|
||||
case CameraLensDirection.back:
|
||||
return Icons.camera_rear;
|
||||
case CameraLensDirection.front:
|
||||
return Icons.camera_front;
|
||||
case CameraLensDirection.external:
|
||||
return Icons.camera;
|
||||
}
|
||||
throw ArgumentError('Unknown lens direction');
|
||||
}
|
||||
|
||||
void logError(String code, String message) =>
|
||||
print('Error: $code\nError Message: $message');
|
||||
|
||||
class _CaptureImageState extends State<CaptureImage>
|
||||
with WidgetsBindingObserver {
|
||||
CameraController controller;
|
||||
String imagePath;
|
||||
// String videoPath;
|
||||
VoidCallback videoPlayerListener;
|
||||
bool isInit = true;
|
||||
int curCamera = 0;
|
||||
var cameras;
|
||||
@override
|
||||
void initState() {
|
||||
super.initState();
|
||||
WidgetsBinding.instance.addObserver(this);
|
||||
}
|
||||
|
||||
@override
|
||||
void didChangeDependencies() async {
|
||||
if (isInit) {
|
||||
cameras = await availableCameras();
|
||||
onNewCameraSelected(cameras[curCamera]);
|
||||
setState(() {
|
||||
isInit = false;
|
||||
});
|
||||
}
|
||||
super.didChangeDependencies();
|
||||
}
|
||||
|
||||
@override
|
||||
void dispose() {
|
||||
WidgetsBinding.instance.removeObserver(this);
|
||||
super.dispose();
|
||||
}
|
||||
|
||||
@override
|
||||
void didChangeAppLifecycleState(AppLifecycleState state) {
|
||||
// App state changed before we got the chance to initialize.
|
||||
if (controller == null || !controller.value.isInitialized) {
|
||||
return;
|
||||
}
|
||||
if (state == AppLifecycleState.inactive) {
|
||||
controller?.dispose();
|
||||
} else if (state == AppLifecycleState.resumed) {
|
||||
if (controller != null) {
|
||||
onNewCameraSelected(controller.description);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return SafeArea(
|
||||
child: Scaffold(
|
||||
key: _scaffoldKey,
|
||||
// appBar: AppBar(
|
||||
// title: const Text('Take Picture'),
|
||||
// ),
|
||||
body: isInit
|
||||
? Center(
|
||||
child: CircularProgressIndicator(),
|
||||
)
|
||||
: Stack(children: <Widget>[
|
||||
_cameraPreviewWidget(),
|
||||
Positioned(
|
||||
bottom: 100, left: 100, child: _captureControlRowWidget()),
|
||||
Positioned(
|
||||
bottom: 100,
|
||||
right: 100,
|
||||
child: InkWell(
|
||||
onTap: () {
|
||||
if (curCamera == 0) {
|
||||
try {
|
||||
onNewCameraSelected(cameras[1]);
|
||||
setState(() {
|
||||
curCamera = 1;
|
||||
});
|
||||
} catch (e) {}
|
||||
} else {
|
||||
onNewCameraSelected(cameras[0]);
|
||||
setState(() {
|
||||
curCamera = 0;
|
||||
});
|
||||
}
|
||||
},
|
||||
child: Icon(
|
||||
curCamera == 0 ? Icons.camera_rear : Icons.camera_front,
|
||||
size: 40,
|
||||
color: Colors.white,
|
||||
),
|
||||
),
|
||||
),
|
||||
// _cameraTogglesRowWidget(cameras),
|
||||
]),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
/// Display the preview from the camera (or a message if the preview is not available).
|
||||
Widget _cameraPreviewWidget() {
|
||||
if (controller == null || !controller.value.isInitialized) {
|
||||
return const Text(
|
||||
'Tap a camera',
|
||||
style: TextStyle(
|
||||
color: Colors.white,
|
||||
fontSize: 24.0,
|
||||
fontWeight: FontWeight.w900,
|
||||
),
|
||||
);
|
||||
} else {
|
||||
return Container(
|
||||
width: double.infinity,
|
||||
child: CameraPreview(controller),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/// Toggle recording audio
|
||||
|
||||
/// Display the control bar with buttons to take pictures and record videos.
|
||||
Widget _captureControlRowWidget() {
|
||||
return Row(
|
||||
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
|
||||
mainAxisSize: MainAxisSize.max,
|
||||
children: <Widget>[
|
||||
IconButton(
|
||||
icon: const Icon(
|
||||
Icons.camera_alt,
|
||||
size: 40,
|
||||
color: Colors.white,
|
||||
),
|
||||
// color: Colors.blue,
|
||||
onPressed: controller != null &&
|
||||
controller.value.isInitialized &&
|
||||
!controller.value.isRecordingVideo
|
||||
? onTakePictureButtonPressed
|
||||
: null,
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
getCameras() async {
|
||||
return await availableCameras();
|
||||
}
|
||||
|
||||
/// Display a row of toggle to select the camera (or a message if no camera is available).
|
||||
// Widget _cameraTogglesRowWidget(var cameras) {
|
||||
// final List<Widget> toggles = <Widget>[];
|
||||
|
||||
// if (cameras.isEmpty) {
|
||||
// return const Text('No camera found');
|
||||
// } else {
|
||||
// for (CameraDescription cameraDescription in cameras) {
|
||||
// print("${cameraDescription.name}");
|
||||
// toggles.add(
|
||||
// SizedBox(
|
||||
// width: 90.0,
|
||||
// child: RadioListTile<CameraDescription>(
|
||||
// title: Icon(getCameraLensIcon(cameraDescription.lensDirection)),
|
||||
// groupValue: controller?.description,
|
||||
// value: cameraDescription,
|
||||
// onChanged: controller != null && controller.value.isRecordingVideo
|
||||
// ? null
|
||||
// : onNewCameraSelected,
|
||||
// ),
|
||||
// ),
|
||||
// );
|
||||
// }
|
||||
// }
|
||||
|
||||
// return Row(children: toggles);
|
||||
// }
|
||||
|
||||
String timestamp() => DateTime.now().millisecondsSinceEpoch.toString();
|
||||
|
||||
void showInSnackBar(String message) {
|
||||
_scaffoldKey.currentState.showSnackBar(SnackBar(content: Text(message)));
|
||||
}
|
||||
|
||||
void onNewCameraSelected(CameraDescription cameraDescription) async {
|
||||
print(cameraDescription.lensDirection.toString());
|
||||
if (controller != null) {
|
||||
await controller.dispose();
|
||||
}
|
||||
controller = CameraController(
|
||||
cameraDescription,
|
||||
ResolutionPreset.medium,
|
||||
// enableAudio: enableAudio,
|
||||
);
|
||||
|
||||
// If the controller is updated then update the UI.
|
||||
controller.addListener(() {
|
||||
if (mounted) setState(() {});
|
||||
if (controller.value.hasError) {
|
||||
showInSnackBar('Camera error ${controller.value.errorDescription}');
|
||||
}
|
||||
});
|
||||
|
||||
try {
|
||||
await controller.initialize();
|
||||
} on CameraException catch (e) {
|
||||
_showCameraException(e);
|
||||
}
|
||||
|
||||
if (mounted) {
|
||||
setState(() {});
|
||||
}
|
||||
}
|
||||
|
||||
void onTakePictureButtonPressed() {
|
||||
takePicture().then((String filePath) {
|
||||
if (mounted) {
|
||||
setState(() {
|
||||
imagePath = filePath;
|
||||
var profileProviderObject =
|
||||
Provider.of<TestResultsProvider>(context, listen: false);
|
||||
List<File> files = profileProviderObject.catchImages;
|
||||
files.add(File(imagePath));
|
||||
profileProviderObject.setCatchImages(files);
|
||||
profileProviderObject.setImages();
|
||||
print(imagePath);
|
||||
});
|
||||
if (filePath != null) {
|
||||
Navigator.of(context).pop();
|
||||
// showInSnackBar('Picture saved to $filePath');
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
Future<String> takePicture() async {
|
||||
if (!controller.value.isInitialized) {
|
||||
showInSnackBar('Error: select a camera first.');
|
||||
return null;
|
||||
}
|
||||
final Directory extDir = await getApplicationDocumentsDirectory();
|
||||
final String dirPath = '${extDir.path}/Pictures/flutter_test';
|
||||
await Directory(dirPath).create(recursive: true);
|
||||
final String filePath = '$dirPath/${timestamp()}.jpg';
|
||||
|
||||
if (controller.value.isTakingPicture) {
|
||||
// A capture is already pending, do nothing.
|
||||
return null;
|
||||
}
|
||||
|
||||
try {
|
||||
await controller.takePicture(filePath);
|
||||
} on CameraException catch (e) {
|
||||
_showCameraException(e);
|
||||
return null;
|
||||
}
|
||||
return filePath;
|
||||
}
|
||||
|
||||
void _showCameraException(CameraException e) {
|
||||
logError(e.code, e.description);
|
||||
showInSnackBar('Error: ${e.code}\n${e.description}');
|
||||
}
|
||||
}
|
||||
|
||||
// class CameraApp extends StatelessWidget {
|
||||
// @override
|
||||
// Widget build(BuildContext context) {
|
||||
// return MaterialApp(
|
||||
// home: CaptureImage(),
|
||||
// );
|
||||
// }
|
||||
// }
|
||||
|
||||
// List<CameraDescription> cameras = [];
|
||||
|
||||
// Future<void> main() async {
|
||||
// // Fetch the available cameras before initializing the app.
|
||||
// try {
|
||||
// WidgetsFlutterBinding.ensureInitialized();
|
||||
// } on CameraException catch (e) {
|
||||
// logError(e.code, e.description);
|
||||
// }
|
||||
// runApp(CameraApp());
|
||||
// }
|
||||
Reference in New Issue
Block a user