refactor: Use explicitToJson parameter for json_serializable

BlinkID/build.yaml

@@ -0,0 +1,6 @@
+targets:
+  $default:
+    builders:
+      json_serializable:
+        options:
+          explicit_to_json: true

BlinkID/lib/microblink_scanner.dart

@@ -10,7 +10,6 @@ export 'package:blinkid_flutter/overlay_settings.dart';
 export 'package:blinkid_flutter/types.dart';
 
 class MicroblinkScanner {
-
   static const MethodChannel _channel = const MethodChannel('blinkid_scanner');
 
   static const String METHOD_SCAN_WITH_CAMERA = 'scanWithCamera';
@@ -22,30 +21,33 @@ class MicroblinkScanner {
   static const String ARG_LICENSEE = 'licensee';
   static const String ARG_SHOW_LICENSE_WARNING = 'showTrialLicenseWarning';
 
-  static Future<List<RecognizerResult>> scanWithCamera(RecognizerCollection collection, OverlaySettings overlaySettings, String license) async {
-    var jsonResults = jsonDecode(await _channel.invokeMethod(
-      METHOD_SCAN_WITH_CAMERA,
-      {
-        ARG_RECOGNIZER_COLLECTION: jsonDecode(jsonEncode(collection)),
-        ARG_OVERLAY_SETTINGS: jsonDecode(jsonEncode(overlaySettings)),
-        ARG_LICENSE: {
-          ARG_LICENSE_KEY: license
-        }
-      })
+  static Future<List<RecognizerResult>> scanWithCamera(
+    RecognizerCollection collection,
+    OverlaySettings overlaySettings,
+    String license,
+  ) async {
+    final jsonResults = jsonDecode(
+      await _channel.invokeMethod(
+        METHOD_SCAN_WITH_CAMERA,
+        {
+          ARG_RECOGNIZER_COLLECTION: collection.toJson(),
+          ARG_OVERLAY_SETTINGS: overlaySettings.toJson(),
+          ARG_LICENSE: {ARG_LICENSE_KEY: license}
+        },
+      ),
     );
 
     if (jsonResults == null) return List.empty();
 
-    var results = [];
+    final results = [];
     for (int i = 0; i < jsonResults.length; ++i) {
-      var map = Map<String, dynamic>.from(jsonResults[i]);
-      var result = collection.recognizerArray[i].createResultFromNative(map);
+      final map = Map<String, dynamic>.from(jsonResults[i]);
+      final result = collection.recognizerArray[i].createResultFromNative(map);
       if (result.resultState != RecognizerResultState.empty) {
         results.add(result);
       }
     }
 
     return List<RecognizerResult>.from(results);
   }
-
-}
+}