fixed memory leak

.vscode/launch.json

@@ -15,6 +15,20 @@
             "request": "launch",
             "type": "dart"
         },
+        {
+            "name": "example (profile mode)",
+            "cwd": "example",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "profile"
+        },
+        {
+            "name": "example (release mode)",
+            "cwd": "example",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "release"
+        },
         {
             "name": "ZXScanner",
             "cwd": "zxscanner",

.vscode/settings.json

@@ -5,6 +5,7 @@
         "__nullptr": "cpp",
         "codecvt": "cpp",
         "cmath": "cpp",
-        "array": "cpp"
+        "array": "cpp",
+        "new": "cpp"
     }
 }

ios/Classes/src/native_zxing.cpp

@@ -49,6 +49,9 @@ extern "C"
             resultToCodeResult(&code, result);
         }
 
+        delete[] data;
+        delete[] bytes;
+
         int evalInMillis = static_cast<int>(get_now() - start);
         platform_log("Read Barcode in: %d ms\n", evalInMillis);
         return code;
@@ -84,6 +87,9 @@ extern "C"
             }
         }
 
+        delete[] data;
+        delete[] bytes;
+
         int evalInMillis = static_cast<int>(get_now() - start);
         platform_log("Read Barcode in: %d ms\n", evalInMillis);
         return {i, codes};