Merge pull request #1177 from navaronbracke/macos_extras

fix: support formats for analyze image

+## NEXT
+
+* [MacOS] Added the corners and size information to barcode results.
+* [MacOS] Added support for `analyzeImage`.
+* [web] Added the size information to barcode results.
+* Added support for barcode formats to image analysis.
+
 ## 5.2.3
 
 Deprecations:

@@ -35,8 +35,8 @@ See the example app for detailed implementation information.
 
 | Features               | Android            | iOS                | macOS                | Web |
 |------------------------|--------------------|--------------------|----------------------|-----|
-| analyzeImage (Gallery) | :heavy_check_mark: | :heavy_check_mark: | :x:                  | :x: |
-| returnImage            | :heavy_check_mark: | :heavy_check_mark: | :x:                  | :x: |
+| analyzeImage (Gallery) | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:   | :x: |
+| returnImage            | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:   | :x: |
 | scanWindow             | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:   | :x: |
 
 ## Platform Support
@@ -83,8 +83,8 @@ Ensure that you granted camera permission in XCode -> Signing & Capabilities:
 
 ## Web
 
-As of version 5.0.0 adding the library to the `index.html` is no longer required,
-as the library is automatically loaded on first use.
+As of version 5.0.0 adding the barcode scanning library script to the `index.html` is no longer required,
+as the script is automatically loaded on first use.
 
 ### Providing a mirror for the barcode scanning library
 

@@ -67,7 +67,7 @@ dependencies {
     def useUnbundled = project.findProperty('dev.steenbakker.mobile_scanner.useUnbundled') ?: false
     if (useUnbundled.toBoolean()) {
         // Dynamically downloaded model via Google Play Services
-        implementation 'com.google.android.gms:play-services-mlkit-barcode-scanning:18.3.0'
+        implementation 'com.google.android.gms:play-services-mlkit-barcode-scanning:18.3.1'
     } else {
         // Bundled model in app
         implementation 'com.google.mlkit:barcode-scanning:17.2.0'
@@ -77,8 +77,8 @@ dependencies {
     // See: https://youtrack.jetbrains.com/issue/KT-55297/kotlin-stdlib-should-declare-constraints-on-kotlin-stdlib-jdk8-and-kotlin-stdlib-jdk7
     implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.22"))
 
-    implementation 'androidx.camera:camera-lifecycle:1.3.3'
-    implementation 'androidx.camera:camera-camera2:1.3.3'
+    implementation 'androidx.camera:camera-lifecycle:1.3.4'
+    implementation 'androidx.camera:camera-camera2:1.3.4'
 
     testImplementation 'org.jetbrains.kotlin:kotlin-test'
     testImplementation 'org.mockito:mockito-core:5.12.0'    

@@ -151,28 +151,16 @@ class MobileScannerHandler(
             null
         }
 
-        var barcodeScannerOptions: BarcodeScannerOptions? = null
-        if (formats != null) {
-            val formatsList: MutableList<Int> = mutableListOf()
-            for (formatValue in formats) {
-                formatsList.add(BarcodeFormats.fromRawValue(formatValue).intValue)
-            }
-            barcodeScannerOptions = if (formatsList.size == 1) {
-                BarcodeScannerOptions.Builder().setBarcodeFormats(formatsList.first())
-                    .build()
-            } else {
-                BarcodeScannerOptions.Builder().setBarcodeFormats(
-                    formatsList.first(),
-                    *formatsList.subList(1, formatsList.size).toIntArray()
-                ).build()
-            }
-        }
+        val barcodeScannerOptions: BarcodeScannerOptions? = buildBarcodeScannerOptions(formats)
 
         val position =
             if (facing == 0) CameraSelector.DEFAULT_FRONT_CAMERA else CameraSelector.DEFAULT_BACK_CAMERA
 
-        val detectionSpeed: DetectionSpeed = if (speed == 0) DetectionSpeed.NO_DUPLICATES
-        else if (speed ==1) DetectionSpeed.NORMAL else DetectionSpeed.UNRESTRICTED
+        val detectionSpeed: DetectionSpeed = when (speed) {
+            0 -> DetectionSpeed.NO_DUPLICATES
+            1 -> DetectionSpeed.NORMAL
+            else -> DetectionSpeed.UNRESTRICTED
+        }
 
         mobileScanner!!.start(
             barcodeScannerOptions,
@@ -243,13 +231,13 @@ class MobileScannerHandler(
 
     private fun analyzeImage(call: MethodCall, result: MethodChannel.Result) {
         analyzerResult = result
-        val uri = Uri.fromFile(File(call.arguments.toString()))
 
-        // TODO: parse options from the method call
-        // See https://github.com/juliansteenbakker/mobile_scanner/issues/1069
+        val formats: List<Int>? = call.argument<List<Int>>("formats")
+        val filePath: String = call.argument<String>("filePath")!!
+
         mobileScanner!!.analyzeImage(
-            uri,
-            null,
+            Uri.fromFile(File(filePath)),
+            buildBarcodeScannerOptions(formats),
             analyzeImageSuccessCallback,
             analyzeImageErrorCallback)
     }
@@ -284,4 +272,26 @@ class MobileScannerHandler(
 
         result.success(null)
     }
+
+    private fun buildBarcodeScannerOptions(formats: List<Int>?): BarcodeScannerOptions? {
+        if (formats == null) {
+            return null
+        }
+
+        val formatsList: MutableList<Int> = mutableListOf()
+
+        for (formatValue in formats) {
+            formatsList.add(BarcodeFormats.fromRawValue(formatValue).intValue)
+        }
+
+        if (formatsList.size == 1) {
+            return BarcodeScannerOptions.Builder().setBarcodeFormats(formatsList.first())
+                .build()
+        }
+
+        return BarcodeScannerOptions.Builder().setBarcodeFormats(
+            formatsList.first(),
+            *formatsList.subList(1, formatsList.size).toIntArray()
+        ).build()
+    }
 }

+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:mobile_scanner/mobile_scanner.dart';
+
+class BarcodeScannerAnalyzeImage extends StatefulWidget {
+  const BarcodeScannerAnalyzeImage({super.key});
+
+  @override
+  State<BarcodeScannerAnalyzeImage> createState() =>
+      _BarcodeScannerAnalyzeImageState();
+}
+
+class _BarcodeScannerAnalyzeImageState
+    extends State<BarcodeScannerAnalyzeImage> {
+  final MobileScannerController _controller = MobileScannerController();
+
+  BarcodeCapture? _barcodeCapture;
+
+  Future<void> _analyzeImageFromFile() async {
+    try {
+      final XFile? file =
+          await ImagePicker().pickImage(source: ImageSource.gallery);
+
+      if (!mounted || file == null) {
+        return;
+      }
+
+      final BarcodeCapture? barcodeCapture =
+          await _controller.analyzeImage(file.path);
+
+      if (mounted) {
+        setState(() {
+          _barcodeCapture = barcodeCapture;
+        });
+      }
+    } catch (_) {}
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    Widget label = const Text('Pick a file to detect barcode');
+
+    if (_barcodeCapture != null) {
+      label = Text(
+        _barcodeCapture?.barcodes.firstOrNull?.displayValue ??
+            'No barcode detected',
+      );
+    }
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('Analyze image from file')),
+      body: Column(
+        children: [
+          Expanded(
+            child: Center(
+              child: ElevatedButton(
+                onPressed: kIsWeb ? null : _analyzeImageFromFile,
+                child: kIsWeb
+                    ? const Text('Analyze image is not supported on web')
+                    : const Text('Choose file'),
+              ),
+            ),
+          ),
+          Expanded(child: Center(child: label)),
+        ],
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+}

@@ -39,16 +39,16 @@ class _BarcodeScannerWithScanWindowState
             final scannedBarcode = barcodeCapture.barcodes.first;
 
             // No barcode corners, or size, or no camera preview size.
-            if (scannedBarcode.corners.isEmpty ||
-                value.size.isEmpty ||
-                barcodeCapture.size.isEmpty) {
+            if (value.size.isEmpty ||
+                scannedBarcode.size.isEmpty ||
+                scannedBarcode.corners.isEmpty) {
               return const SizedBox();
             }
 
             return CustomPaint(
               painter: BarcodeOverlay(
                 barcodeCorners: scannedBarcode.corners,
-                barcodeSize: barcodeCapture.size,
+                barcodeSize: scannedBarcode.size,
                 boxFit: BoxFit.contain,
                 cameraPreviewSize: value.size,
               ),

 import 'package:flutter/material.dart';
+import 'package:mobile_scanner_example/barcode_scanner_analyze_image.dart';
 import 'package:mobile_scanner_example/barcode_scanner_controller.dart';
 import 'package:mobile_scanner_example/barcode_scanner_listview.dart';
 import 'package:mobile_scanner_example/barcode_scanner_pageview.dart';
@@ -20,95 +21,75 @@ void main() {
 class MyHome extends StatelessWidget {
   const MyHome({super.key});
 
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: const Text('Mobile Scanner Example')),
-      body: Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.spaceAround,
-          children: [
-            ElevatedButton(
-              onPressed: () {
-                Navigator.of(context).push(
-                  MaterialPageRoute(
-                    builder: (context) => const BarcodeScannerSimple(),
-                  ),
-                );
-              },
-              child: const Text('MobileScanner Simple'),
-            ),
-            ElevatedButton(
+  Widget _buildItem(BuildContext context, String label, Widget page) {
+    return Padding(
+      padding: const EdgeInsets.all(8.0),
+      child: Center(
+        child: ElevatedButton(
           onPressed: () {
             Navigator.of(context).push(
               MaterialPageRoute(
-                    builder: (context) => const BarcodeScannerListView(),
+                builder: (context) => page,
               ),
             );
           },
-              child: const Text('MobileScanner with ListView'),
+          child: Text(label),
         ),
-            ElevatedButton(
-              onPressed: () {
-                Navigator.of(context).push(
-                  MaterialPageRoute(
-                    builder: (context) => const BarcodeScannerWithController(),
       ),
     );
-              },
-              child: const Text('MobileScanner with Controller'),
-            ),
-            ElevatedButton(
-              onPressed: () {
-                Navigator.of(context).push(
-                  MaterialPageRoute(
-                    builder: (context) => const BarcodeScannerWithScanWindow(),
-                  ),
-                );
-              },
-              child: const Text('MobileScanner with ScanWindow'),
-            ),
-            ElevatedButton(
-              onPressed: () {
-                Navigator.of(context).push(
-                  MaterialPageRoute(
-                    builder: (context) => const BarcodeScannerReturningImage(),
-                  ),
-                );
-              },
-              child: const Text(
-                'MobileScanner with Controller (returning image)',
-              ),
-            ),
-            ElevatedButton(
-              onPressed: () {
-                Navigator.of(context).push(
-                  MaterialPageRoute(
-                    builder: (context) => const BarcodeScannerWithZoom(),
-                  ),
-                );
-              },
-              child: const Text('MobileScanner with zoom slider'),
-            ),
-            ElevatedButton(
-              onPressed: () {
-                Navigator.of(context).push(
-                  MaterialPageRoute(
-                    builder: (context) => const BarcodeScannerPageView(),
-                  ),
-                );
-              },
-              child: const Text('MobileScanner pageView'),
-            ),
-            ElevatedButton(
-              onPressed: () {
-                Navigator.of(context).push(
-                  MaterialPageRoute(
-                    builder: (context) => BarcodeScannerWithOverlay(),
-                  ),
-                );
-              },
-              child: const Text('MobileScanner with Overlay'),
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('Mobile Scanner Example')),
+      body: Center(
+        child: ListView(
+          children: [
+            _buildItem(
+              context,
+              'MobileScanner Simple',
+              const BarcodeScannerSimple(),
+            ),
+            _buildItem(
+              context,
+              'MobileScanner with ListView',
+              const BarcodeScannerListView(),
+            ),
+            _buildItem(
+              context,
+              'MobileScanner with Controller',
+              const BarcodeScannerWithController(),
+            ),
+            _buildItem(
+              context,
+              'MobileScanner with ScanWindow',
+              const BarcodeScannerWithScanWindow(),
+            ),
+            _buildItem(
+              context,
+              'MobileScanner with Controller (return image)',
+              const BarcodeScannerReturningImage(),
+            ),
+            _buildItem(
+              context,
+              'MobileScanner with zoom slider',
+              const BarcodeScannerWithZoom(),
+            ),
+            _buildItem(
+              context,
+              'MobileScanner with PageView',
+              const BarcodeScannerPageView(),
+            ),
+            _buildItem(
+              context,
+              'MobileScanner with Overlay',
+              const BarcodeScannerWithOverlay(),
+            ),
+            _buildItem(
+              context,
+              'Analyze image from file',
+              const BarcodeScannerAnalyzeImage(),
             ),
           ],
         ),

@@ -5,6 +5,8 @@ import 'package:mobile_scanner_example/scanner_button_widgets.dart';
 import 'package:mobile_scanner_example/scanner_error_widget.dart';
 
 class BarcodeScannerWithOverlay extends StatefulWidget {
+  const BarcodeScannerWithOverlay({super.key});
+
   @override
   _BarcodeScannerWithOverlayState createState() =>
       _BarcodeScannerWithOverlayState();

@@ -22,8 +22,8 @@ public class MobileScanner: NSObject, AVCaptureVideoDataOutputSampleBufferDelega
     /// The selected camera
     var device: AVCaptureDevice!
 
-    /// Barcode scanner for results
-    var scanner = BarcodeScanner.barcodeScanner()
+    /// The long lived barcode scanner for scanning barcodes from a camera preview.
+    var scanner: BarcodeScanner? = nil
 
     /// Default position of camera
     var videoPosition: AVCaptureDevice.Position = AVCaptureDevice.Position.back
@@ -146,7 +146,7 @@ public class MobileScanner: NSObject, AVCaptureVideoDataOutputSampleBufferDelega
                 position: videoPosition
             )
 
-            scanner.process(image) { [self] barcodes, error in
+            scanner?.process(image) { [self] barcodes, error in
                 imagesCurrentlyBeingProcessed = false
                 
                 if (detectionSpeed == DetectionSpeed.noDuplicates) {
@@ -314,6 +314,7 @@ public class MobileScanner: NSObject, AVCaptureVideoDataOutputSampleBufferDelega
         textureId = nil
         captureSession = nil
         device = nil
+        scanner = nil
     }
 
     /// Toggle the torch.
@@ -431,7 +432,8 @@ public class MobileScanner: NSObject, AVCaptureVideoDataOutputSampleBufferDelega
     }
 
     /// Analyze a single image
-    func analyzeImage(image: UIImage, position: AVCaptureDevice.Position, callback: @escaping BarcodeScanningCallback) {
+    func analyzeImage(image: UIImage, position: AVCaptureDevice.Position,
+                      barcodeScannerOptions: BarcodeScannerOptions?, callback: @escaping BarcodeScanningCallback) {
         let image = VisionImage(image: image)
         image.orientation = imageOrientation(
             deviceOrientation: UIDevice.current.orientation,
@@ -439,6 +441,8 @@ public class MobileScanner: NSObject, AVCaptureVideoDataOutputSampleBufferDelega
             position: position
         )
         
+        let scanner: BarcodeScanner = barcodeScannerOptions != nil ? BarcodeScanner.barcodeScanner(options: barcodeScannerOptions!) : BarcodeScanner.barcodeScanner()
+
         scanner.process(image, completion: callback)
     }
 

@@ -134,16 +134,7 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin {
         self.mobileScanner.timeoutSeconds = Double(timeoutMs) / Double(1000)
         MobileScannerPlugin.returnImage = returnImage
 
-        let formatList = formats.map { format in return BarcodeFormat(rawValue: format)}
-        var barcodeOptions: BarcodeScannerOptions? = nil
-
-        if (formatList.count != 0) {
-            var barcodeFormats: BarcodeFormat = []
-            for index in formats {
-                barcodeFormats.insert(BarcodeFormat(rawValue: index))
-            }
-            barcodeOptions = BarcodeScannerOptions(formats: barcodeFormats)
-        }
+        let barcodeOptions: BarcodeScannerOptions? = buildBarcodeScannerOptions(formats)
 
         let position = facing == 0 ? AVCaptureDevice.Position.front : .back
         let detectionSpeed: DetectionSpeed = DetectionSpeed(rawValue: speed)!
@@ -262,7 +253,9 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin {
     
     /// Analyzes a single image.
     private func analyzeImage(_ call: FlutterMethodCall, _ result: @escaping FlutterResult) {
-        let uiImage = UIImage(contentsOfFile: call.arguments as? String ?? "")
+        let formats: Array<Int> = (call.arguments as! Dictionary<String, Any?>)["formats"] as? Array ?? []
+        let scannerOptions: BarcodeScannerOptions? = buildBarcodeScannerOptions(formats)
+        let uiImage = UIImage(contentsOfFile: (call.arguments as! Dictionary<String, Any?>)["filePath"] as? String ?? "")
         
         if (uiImage == nil) {
             result(FlutterError(code: "MobileScanner",
@@ -271,7 +264,8 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin {
             return
         }
 
-        mobileScanner.analyzeImage(image: uiImage!, position: AVCaptureDevice.Position.back, callback: { barcodes, error in
+        mobileScanner.analyzeImage(image: uiImage!, position: AVCaptureDevice.Position.back,
+                                   barcodeScannerOptions: scannerOptions, callback: { barcodes, error in
             if error != nil {
                 DispatchQueue.main.async {
                     result(FlutterError(code: "MobileScanner",
@@ -297,4 +291,18 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin {
             }
         })
     }
+    
+    private func buildBarcodeScannerOptions(_ formats: [Int]) -> BarcodeScannerOptions? {
+        guard !formats.isEmpty else {
+            return nil
+        }
+
+        var barcodeFormats: BarcodeFormat = []
+
+        for format in formats {
+            barcodeFormats.insert(BarcodeFormat(rawValue: format))
+        }
+
+        return BarcodeScannerOptions(formats: barcodeFormats)
+    }
 }

@@ -3,6 +3,7 @@ import 'dart:async';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
+import 'package:mobile_scanner/src/enums/barcode_format.dart';
 import 'package:mobile_scanner/src/enums/mobile_scanner_authorization_state.dart';
 import 'package:mobile_scanner/src/enums/mobile_scanner_error_code.dart';
 import 'package:mobile_scanner/src/enums/torch_state.dart';
@@ -140,11 +141,22 @@ class MethodChannelMobileScanner extends MobileScannerPlatform {
   }
 
   @override
-  Future<BarcodeCapture?> analyzeImage(String path) async {
+  Future<BarcodeCapture?> analyzeImage(
+    String path, {
+    List<BarcodeFormat> formats = const <BarcodeFormat>[],
+  }) async {
     final Map<Object?, Object?>? result =
         await methodChannel.invokeMapMethod<Object?, Object?>(
       'analyzeImage',
-      path,
+      {
+        'filePath': path,
+        'formats': formats.isEmpty
+            ? null
+            : [
+                for (final BarcodeFormat format in formats)
+                  if (format != BarcodeFormat.unknown) format.rawValue,
+              ],
+      },
     );
 
     return _parseBarcode(result);

@@ -174,7 +174,7 @@ class MobileScannerController extends ValueNotifier<MobileScannerState> {
   ///
   /// The [path] points to a file on the device.
   ///
-  /// This is only supported on Android and iOS.
+  /// This is only supported on Android, iOS and MacOS.
   ///
   /// Returns the [BarcodeCapture] that was found in the image.
   Future<BarcodeCapture?> analyzeImage(String path) {

 import 'package:flutter/widgets.dart';
+import 'package:mobile_scanner/src/enums/barcode_format.dart';
 import 'package:mobile_scanner/src/enums/torch_state.dart';
 import 'package:mobile_scanner/src/method_channel/mobile_scanner_method_channel.dart';
 import 'package:mobile_scanner/src/mobile_scanner_view_attributes.dart';
@@ -46,9 +47,15 @@ abstract class MobileScannerPlatform extends PlatformInterface {
   /// Analyze a local image file for barcodes.
   ///
   /// The [path] is the path to the file on disk.
+  /// The [formats] specify the barcode formats that should be detected.
+  ///
+  /// If [formats] is empty, all barcode formats will be detected.
   ///
   /// Returns the barcodes that were found in the image.
-  Future<BarcodeCapture?> analyzeImage(String path) {
+  Future<BarcodeCapture?> analyzeImage(
+    String path, {
+    List<BarcodeFormat> formats = const <BarcodeFormat>[],
+  }) {
     throw UnimplementedError('analyzeImage() has not been implemented.');
   }
 

@@ -152,7 +152,7 @@ class Barcode {
   /// This is null if the raw value is not available.
   final String? rawValue;
 
-  /// The size of the barcode bounding box.
+  /// The normalized size of the barcode bounding box.
   ///
   /// If the bounding box is unavailable, this will be [Size.zero].
   final Size size;

@@ -4,6 +4,7 @@ import 'dart:ui_web' as ui_web;
 
 import 'package:flutter/widgets.dart';
 import 'package:flutter_web_plugins/flutter_web_plugins.dart';
+import 'package:mobile_scanner/src/enums/barcode_format.dart';
 import 'package:mobile_scanner/src/enums/camera_facing.dart';
 import 'package:mobile_scanner/src/enums/mobile_scanner_error_code.dart';
 import 'package:mobile_scanner/src/enums/torch_state.dart';
@@ -232,7 +233,10 @@ class MobileScannerWeb extends MobileScannerPlatform {
   }
 
   @override
-  Future<BarcodeCapture?> analyzeImage(String path) {
+  Future<BarcodeCapture?> analyzeImage(
+    String path, {
+    List<BarcodeFormat> formats = const <BarcodeFormat>[],
+  }) {
     throw UnsupportedError('analyzeImage() is not supported on the web.');
   }
 

@@ -75,13 +75,33 @@ extension type Result(JSObject _) implements JSObject {
 
   /// Convert this result to a [Barcode].
   Barcode get toBarcode {
+    final List<Offset> corners = resultPoints;
+
     return Barcode(
-      corners: resultPoints,
+      corners: corners,
       format: barcodeFormat,
       displayValue: text,
       rawBytes: rawBytes,
       rawValue: text,
+      size: _computeSize(corners),
       type: BarcodeType.text,
     );
   }
+
+  Size _computeSize(List<Offset> points) {
+    if (points.length != 4) {
+      return Size.zero;
+    }
+
+    final Iterable<double> xCoords = points.map((p) => p.dx);
+    final Iterable<double> yCoords = points.map((p) => p.dy);
+
+    // Find the minimum and maximum x and y coordinates.
+    final double xMin = xCoords.reduce((a, b) => a < b ? a : b);
+    final double xMax = xCoords.reduce((a, b) => a > b ? a : b);
+    final double yMin = yCoords.reduce((a, b) => a < b ? a : b);
+    final double yMax = yCoords.reduce((a, b) => a > b ? a : b);
+
+    return Size(xMax - xMin, yMax - yMin);
+  }
 }

@@ -138,11 +138,10 @@ final class ZXingBarcodeReader extends BarcodeReader {
     required web.MediaStream videoStream,
   }) async {
     final int detectionTimeoutMs = options.detectionTimeoutMs;
-    final List<BarcodeFormat> formats = options.formats;
-
-    if (formats.contains(BarcodeFormat.unknown)) {
-      formats.removeWhere((element) => element == BarcodeFormat.unknown);
-    }
+    final List<BarcodeFormat> formats = [
+      for (final BarcodeFormat format in options.formats)
+        if (format != BarcodeFormat.unknown) format,
+    ];
 
     _reader = ZXingBrowserMultiFormatReader(
       _createReaderHints(formats),

@@ -71,6 +71,8 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler,
             stop(result)
         case "updateScanWindow":
             updateScanWindow(call, result)
+        case "analyzeImage":
+            analyzeImage(call, result)
         default:
             result(FlutterMethodNotImplemented)
         }
@@ -124,7 +126,7 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler,
                 VTCreateCGImageFromCVPixelBuffer(self!.latestBuffer, options: nil, imageOut: &cgImage)
                 let imageRequestHandler = VNImageRequestHandler(cgImage: cgImage!)
                 do {
-                    let barcodeRequest:VNDetectBarcodesRequest = VNDetectBarcodesRequest(completionHandler: { [weak self] (request, error) in
+                    let barcodeRequest: VNDetectBarcodesRequest = VNDetectBarcodesRequest(completionHandler: { [weak self] (request, error) in
                         self?.imagesCurrentlyBeingProcessed = false
                         
                         if error != nil {
@@ -452,6 +454,70 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler,
         result(nil)
     }
     
+    func analyzeImage(_ call: FlutterMethodCall, _ result: @escaping FlutterResult) {
+        let argReader = MapArgumentReader(call.arguments as? [String: Any])
+        let symbologies:[VNBarcodeSymbology] = argReader.toSymbology()
+        
+        guard let filePath: String = argReader.string(key: "filePath") else {
+            // TODO: fix error code
+            result(FlutterError(code: "MobileScanner",
+                                message: "No image found in analyzeImage!",
+                                details: nil))
+            return
+        }
+        
+        let fileUrl = URL(fileURLWithPath: filePath)
+        
+        guard let ciImage = CIImage(contentsOf: fileUrl) else {
+            // TODO: fix error code
+            result(FlutterError(code: "MobileScanner",
+                                message: "No image found in analyzeImage!",
+                                details: nil))
+            return
+        }
+        
+        let imageRequestHandler = VNImageRequestHandler(ciImage: ciImage, orientation: CGImagePropertyOrientation.up, options: [:])
+        
+        do {
+            let barcodeRequest: VNDetectBarcodesRequest = VNDetectBarcodesRequest(
+                completionHandler: { [] (request, error) in
+                    
+                if error != nil {
+                    DispatchQueue.main.async {
+                        // TODO: fix error code
+                        result(FlutterError(code: "MobileScanner", message: error?.localizedDescription, details: nil))
+                    }
+                    return
+                }
+                    
+                guard let barcodes: [VNBarcodeObservation] = request.results as? [VNBarcodeObservation] else {
+                    return
+                }
+                    
+                if barcodes.isEmpty {
+                    return
+                }
+                    
+                result([
+                    "name": "barcode",
+                    "data": barcodes.map({ $0.toMap() }),
+                ])
+            })
+            
+            if !symbologies.isEmpty {
+                // Add the symbologies the user wishes to support.
+                barcodeRequest.symbologies = symbologies
+            }
+            
+            try imageRequestHandler.perform([barcodeRequest])
+        } catch let e {
+            // TODO: fix error code
+            DispatchQueue.main.async {
+                result(FlutterError(code: "MobileScanner", message: e.localizedDescription, details: nil))
+            }
+        }
+    }
+    
     // Observer for torch state
     public override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
         switch keyPath {
@@ -542,10 +608,24 @@ extension CGImage {
 }
 
 extension VNBarcodeObservation {
+    private func distanceBetween(_ p1: CGPoint, _ p2: CGPoint) -> CGFloat {
+        return sqrt(pow(p1.x - p2.x, 2) + pow(p1.y - p2.y, 2))
+    }
+    
     public func toMap() -> [String: Any?] {
         return [
-            "rawValue": self.payloadStringValue ?? "",
-            "format": self.symbology.toInt ?? -1,
+            "corners": [
+                ["x": topLeft.x, "y": topLeft.y],
+                ["x": topRight.x, "y": topRight.y],
+                ["x": bottomRight.x, "y": bottomRight.y],
+                ["x": bottomLeft.x, "y": bottomLeft.y],
+            ],
+            "format": symbology.toInt ?? -1,
+            "rawValue": payloadStringValue ?? "",
+            "size": [
+                "width": distanceBetween(topLeft, topRight),
+                "height": distanceBetween(topLeft, bottomLeft),
+            ],
         ]
     }
 }
@@ -585,7 +665,7 @@ extension VNBarcodeSymbology {
         }
     }
 
-    var toInt:Int? {
+    var toInt: Int? {
         if #available(macOS 12.0, *) {
             if(self == VNBarcodeSymbology.codabar){
                 return 8