diff --git a/example/pubspec.lock b/example/pubspec.lock
index 04054b6..1c7ba1a 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -141,7 +141,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.2.0"
+    version: "0.3.0"
   font_awesome_flutter:
     dependency: "direct main"
     description:
diff --git a/ios/Classes/src/native_zxing.cpp b/ios/Classes/src/native_zxing.cpp
index 0984ed7..bb53e83 100644
--- a/ios/Classes/src/native_zxing.cpp
+++ b/ios/Classes/src/native_zxing.cpp
@@ -24,7 +24,7 @@ extern "C"
         auto *data = new uint8_t[length];
         memcpy(data, bytes, length);
 
-        BarcodeFormats formats = BarcodeFormat(format); // BarcodeFormat::Any;
+        BarcodeFormats formats = BarcodeFormat(format);
         DecodeHints hints = DecodeHints().setTryHarder(false).setTryRotate(true).setFormats(formats);
         ImageView image{data, width, height, ImageFormat::Lum};
         if (cropWidth > 0 && cropHeight > 0 && cropWidth < width && cropHeight < height)
@@ -37,10 +37,13 @@ extern "C"
         if (result.isValid())
         {
             code.isValid = result.isValid();
-            code.text = new char[result.text().length() + 1];
-            std::string text = std::string(result.text().begin(), result.text().end());
-            strcpy(code.text, text.c_str());
+
             code.format = Format(static_cast<int>(result.format()));
+
+            const wchar_t *resultText = result.text().c_str();
+            size_t size = (wcslen(resultText) + 1) * sizeof(wchar_t);
+            code.text = new char[size];
+            std::wcstombs(code.text, resultText, size);
         }
 
         int evalInMillis = static_cast<int>(get_now() - start);
@@ -60,7 +63,7 @@ extern "C"
         auto *data = new uint8_t[length];
         memcpy(data, bytes, length);
 
-        BarcodeFormats formats = BarcodeFormat(format); // BarcodeFormat::Any;
+        BarcodeFormats formats = BarcodeFormat(format);
         DecodeHints hints = DecodeHints().setTryHarder(false).setTryRotate(true).setFormats(formats);
         ImageView image{data, width, height, ImageFormat::Lum};
         if (cropWidth > 0 && cropHeight > 0 && cropWidth < width && cropHeight < height)
@@ -77,10 +80,14 @@ extern "C"
             if (result.isValid())
             {
                 code.isValid = result.isValid();
-                code.text = new char[result.text().length() + 1];
-                std::string text = std::string(result.text().begin(), result.text().end());
-                strcpy(code.text, text.c_str());
+
                 code.format = Format(static_cast<int>(result.format()));
+
+                const wchar_t *resultText = result.text().c_str();
+                size_t size = (wcslen(resultText) + 1) * sizeof(wchar_t);
+                code.text = new char[size];
+                std::wcstombs(code.text, resultText, size);
+                
                 codes[i] = code;
                 i++;
             }
diff --git a/lib/flutter_zxing.dart b/lib/flutter_zxing.dart
index 950f29c..482cc53 100644
--- a/lib/flutter_zxing.dart
+++ b/lib/flutter_zxing.dart
@@ -124,7 +124,7 @@ class FlutterZxing {
 
   static EncodeResult encodeBarcode(String contents, int width, int height,
       int format, int margin, int eccLevel) {
-    var result = bindings.encodeBarcode(contents.toNativeUtf8().cast<Int8>(),
+    var result = bindings.encodeBarcode(contents.toNativeUtf8().cast<Char>(),
         width, height, format, margin, eccLevel, _logEnabled);
     return result;
   }
@@ -166,11 +166,11 @@ DynamicLibrary dylib = _openDynamicLibrary();
 
 extension Uint8ListBlobConversion on Uint8List {
   /// Allocates a pointer filled with the Uint8List data.
-  Pointer<Int8> allocatePointer() {
+  Pointer<Char> allocatePointer() {
     final blob = calloc<Int8>(length);
     final blobBytes = blob.asTypedList(length);
     blobBytes.setAll(0, this);
-    return blob;
+    return blob.cast<Char>();
   }
 }
 
@@ -186,7 +186,7 @@ extension EncodeExt on EncodeResult {
   String? get textString =>
       text == nullptr ? null : text.cast<Utf8>().toDartString();
   String get formatString => FlutterZxing.formatName(format);
-  Uint32List get bytes => data.asTypedList(length);
+  Uint32List get bytes => data.cast<Uint32>().asTypedList(length);
   String get errorMessage => error.cast<Utf8>().toDartString();
 }
 
diff --git a/lib/generated_bindings.dart b/lib/generated_bindings.dart
index d5778ab..6df0193 100644
--- a/lib/generated_bindings.dart
+++ b/lib/generated_bindings.dart
@@ -22,14 +22,14 @@ class GeneratedBindings {
   /// Returns the version of the zxing-cpp library.
   ///
   /// @return The version of the zxing-cpp library.
-  ffi.Pointer<ffi.Int8> version() {
+  ffi.Pointer<ffi.Char> version() {
     return _version();
   }
 
   late final _versionPtr =
-      _lookup<ffi.NativeFunction<ffi.Pointer<ffi.Int8> Function()>>('version');
+      _lookup<ffi.NativeFunction<ffi.Pointer<ffi.Char> Function()>>('version');
   late final _version =
-      _versionPtr.asFunction<ffi.Pointer<ffi.Int8> Function()>();
+      _versionPtr.asFunction<ffi.Pointer<ffi.Char> Function()>();
 
   /// @brief Reads barcode from image.
   /// @param bytes Image bytes.
@@ -41,7 +41,7 @@ class GeneratedBindings {
   /// @param logEnabled Log enabled.
   /// @return Barcode result.
   CodeResult readBarcode(
-    ffi.Pointer<ffi.Int8> bytes,
+    ffi.Pointer<ffi.Char> bytes,
     int format,
     int width,
     int height,
@@ -62,11 +62,11 @@ class GeneratedBindings {
 
   late final _readBarcodePtr = _lookup<
       ffi.NativeFunction<
-          CodeResult Function(ffi.Pointer<ffi.Int8>, ffi.Int32, ffi.Int32,
-              ffi.Int32, ffi.Int32, ffi.Int32, ffi.Int32)>>('readBarcode');
+          CodeResult Function(ffi.Pointer<ffi.Char>, ffi.Int, ffi.Int, ffi.Int,
+              ffi.Int, ffi.Int, ffi.Int)>>('readBarcode');
   late final _readBarcode = _readBarcodePtr.asFunction<
       CodeResult Function(
-          ffi.Pointer<ffi.Int8>, int, int, int, int, int, int)>();
+          ffi.Pointer<ffi.Char>, int, int, int, int, int, int)>();
 
   /// @brief Reads barcodes from image.
   /// @param bytes Image bytes.
@@ -78,7 +78,7 @@ class GeneratedBindings {
   /// @param logEnabled Log enabled.
   /// @return Barcode results.
   ffi.Pointer<CodeResult> readBarcodes(
-    ffi.Pointer<ffi.Int8> bytes,
+    ffi.Pointer<ffi.Char> bytes,
     int format,
     int width,
     int height,
@@ -99,17 +99,11 @@ class GeneratedBindings {
 
   late final _readBarcodesPtr = _lookup<
       ffi.NativeFunction<
-          ffi.Pointer<CodeResult> Function(
-              ffi.Pointer<ffi.Int8>,
-              ffi.Int32,
-              ffi.Int32,
-              ffi.Int32,
-              ffi.Int32,
-              ffi.Int32,
-              ffi.Int32)>>('readBarcodes');
+          ffi.Pointer<CodeResult> Function(ffi.Pointer<ffi.Char>, ffi.Int,
+              ffi.Int, ffi.Int, ffi.Int, ffi.Int, ffi.Int)>>('readBarcodes');
   late final _readBarcodes = _readBarcodesPtr.asFunction<
       ffi.Pointer<CodeResult> Function(
-          ffi.Pointer<ffi.Int8>, int, int, int, int, int, int)>();
+          ffi.Pointer<ffi.Char>, int, int, int, int, int, int)>();
 
   /// @brief Encode a string into a barcode
   /// @param contents The string to encode
@@ -121,7 +115,7 @@ class GeneratedBindings {
   /// @param eccLevel The error correction level of the barcode. Used for Aztec, PDF417, and QRCode only, [0-8].
   /// @return The barcode data
   EncodeResult encodeBarcode(
-    ffi.Pointer<ffi.Int8> contents,
+    ffi.Pointer<ffi.Char> contents,
     int width,
     int height,
     int format,
@@ -142,11 +136,11 @@ class GeneratedBindings {
 
   late final _encodeBarcodePtr = _lookup<
       ffi.NativeFunction<
-          EncodeResult Function(ffi.Pointer<ffi.Int8>, ffi.Int32, ffi.Int32,
-              ffi.Int32, ffi.Int32, ffi.Int32, ffi.Int32)>>('encodeBarcode');
+          EncodeResult Function(ffi.Pointer<ffi.Char>, ffi.Int, ffi.Int,
+              ffi.Int, ffi.Int, ffi.Int, ffi.Int)>>('encodeBarcode');
   late final _encodeBarcode = _encodeBarcodePtr.asFunction<
       EncodeResult Function(
-          ffi.Pointer<ffi.Int8>, int, int, int, int, int, int)>();
+          ffi.Pointer<ffi.Char>, int, int, int, int, int, int)>();
 }
 
 abstract class Format {
@@ -206,28 +200,28 @@ abstract class Format {
 }
 
 class CodeResult extends ffi.Struct {
-  @ffi.Int32()
+  @ffi.Int()
   external int isValid;
 
-  external ffi.Pointer<ffi.Int8> text;
+  external ffi.Pointer<ffi.Char> text;
 
   @ffi.Int32()
   external int format;
 }
 
 class EncodeResult extends ffi.Struct {
-  @ffi.Int32()
+  @ffi.Int()
   external int isValid;
 
-  external ffi.Pointer<ffi.Int8> text;
+  external ffi.Pointer<ffi.Char> text;
 
   @ffi.Int32()
   external int format;
 
-  external ffi.Pointer<ffi.Uint32> data;
+  external ffi.Pointer<ffi.UnsignedInt> data;
 
-  @ffi.Int32()
+  @ffi.Int()
   external int length;
 
-  external ffi.Pointer<ffi.Int8> error;
+  external ffi.Pointer<ffi.Char> error;
 }
diff --git a/lib/reader_widget.dart b/lib/reader_widget.dart
index b182939..9b6e40c 100644
--- a/lib/reader_widget.dart
+++ b/lib/reader_widget.dart
@@ -89,6 +89,8 @@ class _ReaderWidgetState extends State<ReaderWidget>
       }
       if (mounted) {
         if (message == AppLifecycleState.paused.toString()) {
+          await cameraController.stopImageStream();
+          await cameraController.dispose();
           _cameraOn = false;
           setState(() {});
         }
diff --git a/zxscanner/pubspec.lock b/zxscanner/pubspec.lock
index 391758a..86195a0 100644
--- a/zxscanner/pubspec.lock
+++ b/zxscanner/pubspec.lock
@@ -300,7 +300,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.2.0"
+    version: "0.3.0"
   font_awesome_flutter:
     dependency: "direct main"
     description:
@@ -524,7 +524,7 @@ packages:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.10"
+    version: "2.0.11"
   path_provider_android:
     dependency: transitive
     description:
diff --git a/zxscanner/pubspec.yaml b/zxscanner/pubspec.yaml
index 68e3b9c..4af18f9 100644
--- a/zxscanner/pubspec.yaml
+++ b/zxscanner/pubspec.yaml
@@ -26,7 +26,7 @@ dependencies:
   image_picker: ^0.8.5
   intl: ^0.17.0
   mobx: ^2.0.7
-  path_provider: ^2.0.10
+  path_provider: ^2.0.11
   share_plus: ^4.0.7
   shared_preferences: ^2.0.15
   url_launcher: ^6.1.2