diff --git a/.editorconfig b/.editorconfig
deleted file mode 100644
index 4cad657..0000000
--- a/.editorconfig
+++ /dev/null
@@ -1,6 +0,0 @@
-[*]
-charset=utf-8
-end_of_line=lf
-insert_final_newline=true
-indent_style=space
-indent_size=2
\ No newline at end of file
diff --git a/android/gradle/wrapper/gradle-wrapper.jar b/android/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..7f93135
Binary files /dev/null and b/android/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..3fa8f86
--- /dev/null
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/android/gradlew b/android/gradlew
new file mode 100644
index 0000000..1aa94a4
--- /dev/null
+++ b/android/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/android/gradlew.bat b/android/gradlew.bat
new file mode 100644
index 0000000..93e3f59
--- /dev/null
+++ b/android/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrDetector.java b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrDetector.java
index 7d085f5..2980cc5 100644
--- a/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrDetector.java
+++ b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrDetector.java
@@ -21,77 +21,77 @@
  */
 
 class QrDetector implements OnSuccessListener<List<Barcode>>, OnFailureListener {
-    private static final String TAG = "cgr.qrmv.QrDetector";
-    private final QrReaderCallbacks communicator;
-    private final BarcodeScanner detector;
+  private static final String TAG = "cgr.qrmv.QrDetector";
+  private final QrReaderCallbacks communicator;
+  private final BarcodeScanner detector;
 
-    public interface Frame {
-        InputImage toImage();
+  public interface Frame {
+    InputImage toImage();
 
-        void close();
-    }
+    void close();
+  }
 
-    @GuardedBy("this")
-    private Frame latestFrame;
+  @GuardedBy("this")
+  private Frame latestFrame;
 
-    @GuardedBy("this")
-    private Frame processingFrame;
+  @GuardedBy("this")
+  private Frame processingFrame;
 
-    QrDetector(QrReaderCallbacks communicator, BarcodeScannerOptions options) {
-        this.communicator = communicator;
-        this.detector = BarcodeScanning.getClient(options);
-    }
+  QrDetector(QrReaderCallbacks communicator, BarcodeScannerOptions options) {
+    this.communicator = communicator;
+    this.detector = BarcodeScanning.getClient(options);
+  }
 
-    void detect(Frame frame) {
-        if (latestFrame != null) latestFrame.close();
-        latestFrame = frame;
+  void detect(Frame frame) {
+    if (latestFrame != null) latestFrame.close();
+    latestFrame = frame;
 
-        if (processingFrame == null) {
-            processLatest();
-        }
+    if (processingFrame == null) {
+      processLatest();
     }
-
-    private synchronized void processLatest() {
-        if (processingFrame != null) processingFrame.close();
-        processingFrame = latestFrame;
-        latestFrame = null;
-        if (processingFrame != null) {
-            processFrame(processingFrame);
-        }
+  }
+
+  private synchronized void processLatest() {
+    if (processingFrame != null) processingFrame.close();
+    processingFrame = latestFrame;
+    latestFrame = null;
+    if (processingFrame != null) {
+      processFrame(processingFrame);
     }
-
-    private void processFrame(Frame frame) {
-        InputImage image;
-        try {
-            image = frame.toImage();
-        } catch (IllegalStateException ex) {
-            // ignore state exception from making frame to image
-            // as the image may be closed already.
-            return;
-        }
-
-        if (image != null) {
-            detector.process(image)
-                .addOnSuccessListener(this)
-                .addOnFailureListener(this)
-                .addOnCompleteListener((Task<List<Barcode>> firebaseVisionBarcodes) -> {
-                    // regardless of failure or success, close the previous frame
-                    // and process the next one.
-                    frame.close();
-                    processLatest();;
-                });
-        }
+  }
+
+  private void processFrame(Frame frame) {
+    InputImage image;
+    try {
+      image = frame.toImage();
+    } catch (IllegalStateException ex) {
+      // ignore state exception from making frame to image
+      // as the image may be closed already.
+      return;
     }
 
-    @Override
-    public void onSuccess(List<Barcode> firebaseVisionBarcodes) {
-        for (Barcode barcode : firebaseVisionBarcodes) {
-            communicator.qrRead(barcode.getRawValue());
-        }
+    if (image != null) {
+      detector.process(image)
+        .addOnSuccessListener(this)
+        .addOnFailureListener(this)
+        .addOnCompleteListener((Task<List<Barcode>> firebaseVisionBarcodes) -> {
+          // regardless of failure or success, close the previous frame
+          // and process the next one.
+          frame.close();
+          processLatest();
+        });
     }
+  }
 
-    @Override
-    public void onFailure(@NonNull Exception e) {
-        Log.w(TAG, "Barcode Reading Failure: ", e);
+  @Override
+  public void onSuccess(List<Barcode> firebaseVisionBarcodes) {
+    for (Barcode barcode : firebaseVisionBarcodes) {
+      communicator.qrRead(new ScannedData(barcode.getCornerPoints(), barcode.getBoundingBox(), barcode.getRawValue()));
     }
+  }
+
+  @Override
+  public void onFailure(@NonNull Exception e) {
+    Log.w(TAG, "Barcode Reading Failure: ", e);
+  }
 }
diff --git a/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrMobileVisionPlugin.java b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrMobileVisionPlugin.java
index 954aa6a..c355fd0 100644
--- a/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrMobileVisionPlugin.java
+++ b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrMobileVisionPlugin.java
@@ -4,6 +4,7 @@
 import android.app.Activity;
 import android.app.Application;
 import android.content.pm.PackageManager;
+import android.util.DisplayMetrics;
 import android.util.Log;
 
 import androidx.annotation.NonNull;
@@ -185,8 +186,8 @@ public void onMethodCall(MethodCall methodCall, @NonNull Result result) {
   }
 
   @Override
-  public void qrRead(String data) {
-    channel.invokeMethod("qrRead", data);
+  public void qrRead(ScannedData data) {
+    channel.invokeMethod("qrRead", data.geJson());
   }
 
   @Override
diff --git a/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrReaderCallbacks.java b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrReaderCallbacks.java
index 1396822..66a1072 100644
--- a/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrReaderCallbacks.java
+++ b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/QrReaderCallbacks.java
@@ -1,5 +1,6 @@
 package com.github.rmtmckenzie.qr_mobile_vision;
 
+
 public interface QrReaderCallbacks {
-    void qrRead(String data);
+    void qrRead(ScannedData data);
 }
diff --git a/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/ScannedData.java b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/ScannedData.java
new file mode 100644
index 0000000..d90757e
--- /dev/null
+++ b/android/src/main/java/com/github/rmtmckenzie/qr_mobile_vision/ScannedData.java
@@ -0,0 +1,39 @@
+package com.github.rmtmckenzie.qr_mobile_vision;
+
+import android.graphics.Point;
+import android.graphics.Rect;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class ScannedData {
+  private final Point[] corners;
+  private final String rawValue;
+
+  private final Rect boundingBox;
+
+  ScannedData(Point[] corners, Rect boundingBox, String rawValue) {
+    this.corners = corners;
+    this.rawValue = rawValue;
+    this.boundingBox = boundingBox;
+  }
+
+  Map<String, Object> geJson() {
+    HashMap<String, Object> result = new HashMap<>();
+    List<List<Integer>> points = new ArrayList<>();
+    for (Point corner : corners) {
+      List<Integer> point = new ArrayList<>();
+      point.add(corner.x);
+      point.add(corner.y);
+      points.add(point);
+    }
+    result.put("corners", points);
+    result.put("rawValue", rawValue);
+    result.put("width", boundingBox.width());
+    result.put("height", boundingBox.height());
+    return result;
+  }
+}
diff --git a/example/lib/main.dart b/example/lib/main.dart
index e6b5516..c47ebdc 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -29,7 +29,7 @@ class MyApp extends StatefulWidget {
 }
 
 class MyAppState extends State<MyApp> {
-  String? qr;
+  BarcodeData? qr;
   bool camState = false;
   bool dirState = false;
 
@@ -64,34 +64,43 @@ class MyAppState extends State<MyApp> {
                 child: camState
                     ? Center(
                         child: SizedBox(
-                          width: 300.0,
-                          height: 600.0,
-                          child: QrCamera(
-                            onError: (context, error) => Text(
-                              error.toString(),
-                              style: const TextStyle(color: Colors.red),
-                            ),
-                            cameraDirection: dirState ? CameraDirection.FRONT : CameraDirection.BACK,
-                            qrCodeCallback: (code) {
-                              setState(() {
-                                qr = code;
-                              });
-                            },
-                            child: Container(
-                              decoration: BoxDecoration(
-                                color: Colors.transparent,
-                                border: Border.all(
-                                  color: Colors.orange,
-                                  width: 10.0,
-                                  style: BorderStyle.solid,
+                          width: double.infinity,
+                          height: 400.0,
+                          child: Stack(
+                            children: [
+                              Positioned.fill(
+                                child: QrCamera(
+                                  timeout: 1000,
+                                  detectionSpeed: QrDetectionSpeed.unrestricted,
+                                  onError: (context, error) => Text(
+                                    error.toString(),
+                                    style: const TextStyle(color: Colors.red),
+                                  ),
+                                  cameraDirection: dirState ? CameraDirection.FRONT : CameraDirection.BACK,
+                                  qrCodeCallback: (code) {
+                                    debugPrint(code.toString());
+                                    setState(() {
+                                      qr = code;
+                                    });
+                                  },
                                 ),
                               ),
-                            ),
+                              if (qr != null)
+                                Positioned(
+                                  left: qr!.getLeft,
+                                  top: qr!.getTop,
+                                  child: Container(
+                                    width: qr!.barcodeSize.width,
+                                    height: qr!.barcodeSize.height,
+                                    decoration: BoxDecoration(border: Border.all()),
+                                  ),
+                                ),
+                            ],
                           ),
                         ),
                       )
                     : const Center(child: Text("Camera inactive"))),
-            Text("QRCODE: $qr"),
+            Text("QRCODE: ${qr?.rawValue}"),
           ],
         ),
       ),
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 15d9d30..4c7ef1b 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -6,7 +6,7 @@ packages:
     description:
       name: async
       sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.11.0"
   boolean_selector:
@@ -14,7 +14,7 @@ packages:
     description:
       name: boolean_selector
       sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.1"
   characters:
@@ -22,7 +22,7 @@ packages:
     description:
       name: characters
       sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.3.0"
   clock:
@@ -30,7 +30,7 @@ packages:
     description:
       name: clock
       sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.1"
   collection:
@@ -38,23 +38,23 @@ packages:
     description:
       name: collection
       sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.18.0"
   device_info_plus:
     dependency: transitive
     description:
       name: device_info_plus
-      sha256: a7fd703482b391a87d60b6061d04dfdeab07826b96f9abd8f5ed98068acc0074
-      url: "https://pub.dev"
+      sha256: f545ffbadee826f26f2e1a0f0cbd667ae9a6011cc0f77c0f8f00a969655e6e95
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "10.1.2"
+    version: "11.1.1"
   device_info_plus_platform_interface:
     dependency: transitive
     description:
       name: device_info_plus_platform_interface
       sha256: "282d3cf731045a2feb66abfe61bbc40870ae50a3ed10a4d3d217556c35c8c2ba"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "7.0.1"
   fake_async:
@@ -62,7 +62,7 @@ packages:
     description:
       name: fake_async
       sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.3.1"
   ffi:
@@ -70,7 +70,7 @@ packages:
     description:
       name: ffi
       sha256: "16ed7b077ef01ad6170a3d0c57caa4a112a38d7a2ed5602e0aca9ca6f3d98da6"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.3"
   file:
@@ -78,7 +78,7 @@ packages:
     description:
       name: file
       sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "7.0.0"
   flutter:
@@ -96,7 +96,7 @@ packages:
     description:
       name: flutter_lints
       sha256: "5398f14efa795ffb7a33e9b6a08798b26a180edac4ad7db3f231e40f82ce11e1"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "5.0.0"
   flutter_test:
@@ -124,7 +124,7 @@ packages:
     description:
       name: leak_tracker
       sha256: "3f87a60e8c63aecc975dda1ceedbc8f24de75f09e4856ea27daf8958f2f0ce05"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "10.0.5"
   leak_tracker_flutter_testing:
@@ -132,7 +132,7 @@ packages:
     description:
       name: leak_tracker_flutter_testing
       sha256: "932549fb305594d82d7183ecd9fa93463e9914e1b67cacc34bc40906594a1806"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.5"
   leak_tracker_testing:
@@ -140,7 +140,7 @@ packages:
     description:
       name: leak_tracker_testing
       sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.1"
   lints:
@@ -148,7 +148,7 @@ packages:
     description:
       name: lints
       sha256: "3315600f3fb3b135be672bf4a178c55f274bebe368325ae18462c89ac1e3b413"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "5.0.0"
   matcher:
@@ -156,7 +156,7 @@ packages:
     description:
       name: matcher
       sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.12.16+1"
   material_color_utilities:
@@ -164,7 +164,7 @@ packages:
     description:
       name: material_color_utilities
       sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.11.1"
   meta:
@@ -172,7 +172,7 @@ packages:
     description:
       name: meta
       sha256: bdb68674043280c3428e9ec998512fb681678676b3c54e773629ffe74419f8c7
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.15.0"
   native_device_orientation:
@@ -180,7 +180,7 @@ packages:
     description:
       name: native_device_orientation
       sha256: "0c330c068575e4be72cce5968ca479a3f8d5d1e5dfce7d89d5c13a1e943b338c"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.3"
   path:
@@ -188,7 +188,7 @@ packages:
     description:
       name: path
       sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.9.0"
   platform:
@@ -196,7 +196,7 @@ packages:
     description:
       name: platform
       sha256: "9b71283fc13df574056616011fb138fd3b793ea47cc509c189a6c3fa5f8a1a65"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.1.5"
   plugin_platform_interface:
@@ -204,7 +204,7 @@ packages:
     description:
       name: plugin_platform_interface
       sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.8"
   process:
@@ -212,7 +212,7 @@ packages:
     description:
       name: process
       sha256: "21e54fd2faf1b5bdd5102afd25012184a6793927648ea81eea80552ac9405b32"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "5.0.2"
   qr_mobile_vision:
@@ -221,7 +221,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "5.0.1"
+    version: "5.0.2"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -232,7 +232,7 @@ packages:
     description:
       name: source_span
       sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.10.0"
   stack_trace:
@@ -240,7 +240,7 @@ packages:
     description:
       name: stack_trace
       sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.11.1"
   stream_channel:
@@ -248,7 +248,7 @@ packages:
     description:
       name: stream_channel
       sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.2"
   string_scanner:
@@ -256,7 +256,7 @@ packages:
     description:
       name: string_scanner
       sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.2.0"
   sync_http:
@@ -264,7 +264,7 @@ packages:
     description:
       name: sync_http
       sha256: "7f0cd72eca000d2e026bcd6f990b81d0ca06022ef4e32fb257b30d3d1014a961"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.3.1"
   term_glyph:
@@ -272,7 +272,7 @@ packages:
     description:
       name: term_glyph
       sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.2.1"
   test_api:
@@ -280,7 +280,7 @@ packages:
     description:
       name: test_api
       sha256: "5b8a98dafc4d5c4c9c72d8b31ab2b23fc13422348d2997120294d3bac86b4ddb"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.7.2"
   vector_math:
@@ -288,7 +288,7 @@ packages:
     description:
       name: vector_math
       sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.4"
   vm_service:
@@ -296,7 +296,7 @@ packages:
     description:
       name: vm_service
       sha256: "5c5f338a667b4c644744b661f309fb8080bb94b18a7e91ef1dbd343bed00ed6d"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "14.2.5"
   web:
@@ -304,7 +304,7 @@ packages:
     description:
       name: web
       sha256: cd3543bd5798f6ad290ea73d210f423502e71900302dde696f8bff84bf89a1cb
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.0"
   webdriver:
@@ -312,23 +312,23 @@ packages:
     description:
       name: webdriver
       sha256: "003d7da9519e1e5f329422b36c4dcdf18d7d2978d1ba099ea4e45ba490ed845e"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.3"
   win32:
     dependency: transitive
     description:
       name: win32
-      sha256: "4d45dc9069dba4619dc0ebd93c7cec5e66d8482cb625a370ac806dcc8165f2ec"
-      url: "https://pub.dev"
+      sha256: "84ba388638ed7a8cb3445a320c8273136ab2631cd5f2c57888335504ddab1bc2"
+      url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "5.5.5"
+    version: "5.8.0"
   win32_registry:
     dependency: transitive
     description:
       name: win32_registry
       sha256: "21ec76dfc731550fd3e2ce7a33a9ea90b828fdf19a5c3bcf556fa992cfa99852"
-      url: "https://pub.dev"
+      url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.5"
 sdks:
diff --git a/lib/qr_camera.dart b/lib/qr_camera.dart
index 92b0071..1f47e0e 100644
--- a/lib/qr_camera.dart
+++ b/lib/qr_camera.dart
@@ -1,3 +1,5 @@
 export 'package:qr_mobile_vision/src/barcode_formats.dart';
 export 'package:qr_mobile_vision/src/camera_direction.dart';
 export 'package:qr_mobile_vision/src/qr_camera.dart';
+export 'package:qr_mobile_vision/src/barcode_data.dart';
+export 'package:qr_mobile_vision/src/exceptions.dart';
diff --git a/lib/qr_mobile_vision.dart b/lib/qr_mobile_vision.dart
index 729739e..87242ef 100644
--- a/lib/qr_mobile_vision.dart
+++ b/lib/qr_mobile_vision.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/foundation.dart';
+import 'package:qr_mobile_vision/src/barcode_data.dart';
 import 'package:qr_mobile_vision/src/barcode_formats.dart';
 import 'package:qr_mobile_vision/src/camera_direction.dart';
 import 'package:qr_mobile_vision/src/preview_details.dart';
@@ -15,7 +16,7 @@ class QrMobileVision {
   static Future<PreviewDetails> start({
     required int width,
     required int height,
-    required ValueChanged<String?> qrCodeHandler,
+    required ValueChanged<BarcodeData> qrCodeHandler,
     CameraDirection cameraDirection = CameraDirection.BACK,
     List<BarcodeFormats>? formats = defaultBarcodeFormats,
   }) async {
diff --git a/lib/src/barcode_data.dart b/lib/src/barcode_data.dart
new file mode 100644
index 0000000..8970ec9
--- /dev/null
+++ b/lib/src/barcode_data.dart
@@ -0,0 +1,48 @@
+import 'package:flutter/widgets.dart';
+
+final class BarcodeData {
+  final String? rawValue;
+  final Size barcodeSize;
+  final List<Offset> corners;
+  final Size cameraSize;
+  final BoxFit boxFit;
+
+  const BarcodeData({
+    required this.corners,
+    required this.rawValue,
+    required this.barcodeSize,
+    required this.cameraSize,
+    required this.boxFit,
+  });
+
+  factory BarcodeData.fromNative(Map data) {
+    final rawValue = data['rawValue'];
+    final width = data['width'];
+    final height = data['height'];
+    final barcodeSize = width is num && height is num ? Size(width.toDouble(), height.toDouble()) : Size.zero;
+    final List<Offset> corners;
+    final items = data['corners'];
+    if (items is! List) {
+      corners = [];
+    } else {
+      corners = [
+        for (int i = 0; i < items.length; i++)
+          Offset(((items[i] as List).first as num).toDouble(), ((items[i] as List).last as num).toDouble())
+      ];
+    }
+    return BarcodeData(
+      corners: corners,
+      rawValue: rawValue,
+      barcodeSize: barcodeSize,
+      cameraSize: Size.zero,
+      boxFit: BoxFit.none,
+    );
+  }
+
+  double get getLeft => corners.isEmpty ? 0 : corners.first.dx;
+
+  double get getTop => corners.isEmpty ? 0 : corners.first.dy;
+
+  @override
+  String toString() => 'Raw Value:$rawValue\nbarcodeSize: $barcodeSize\nCameraSize: $cameraSize\nCorners: ${corners.join(', ')}';
+}
diff --git a/lib/src/exceptions.dart b/lib/src/exceptions.dart
new file mode 100644
index 0000000..fa7f740
--- /dev/null
+++ b/lib/src/exceptions.dart
@@ -0,0 +1,37 @@
+import 'package:flutter/services.dart';
+
+sealed class QrException implements Exception {
+  const QrException();
+
+  factory QrException.fromError(Object? error) {
+    switch (error) {
+      case PlatformException(code: final code):
+        if (code == 'ALREADY_RUNNING') return AlreadyRunningException();
+        if (code == 'QRREADER_ERROR') return CameraPermissionException();
+        if (code == 'noHardware') return NoCameraException();
+        return UnknownException();
+      default:
+        return UnknownException();
+    }
+  }
+}
+
+/// ALREADY_RUNNING
+final class AlreadyRunningException extends QrException {
+  const AlreadyRunningException();
+}
+
+/// QRREADER_ERROR
+final class CameraPermissionException extends QrException {
+  const CameraPermissionException();
+}
+
+/// noHardware
+final class NoCameraException extends QrException {
+  const NoCameraException();
+}
+
+/// OTHERS
+final class UnknownException extends QrException {
+  const UnknownException();
+}
diff --git a/lib/src/qr_camera.dart b/lib/src/qr_camera.dart
index c46eba1..e564d00 100644
--- a/lib/src/qr_camera.dart
+++ b/lib/src/qr_camera.dart
@@ -2,6 +2,8 @@ import 'dart:async';
 
 import 'package:flutter/widgets.dart';
 import 'package:qr_mobile_vision/qr_mobile_vision.dart';
+import 'package:qr_mobile_vision/src/barcode_data.dart';
+import 'package:qr_mobile_vision/src/exceptions.dart';
 import 'package:qr_mobile_vision/src/preview.dart';
 import 'package:qr_mobile_vision/src/preview_details.dart';
 
@@ -12,14 +14,59 @@ Widget _defaultOnError(BuildContext context, Object? error) {
   return const Text("Error reading from camera...");
 }
 
-typedef ErrorCallback = Widget Function(BuildContext context, Object? error);
+typedef ErrorCallback = Widget Function(BuildContext context, QrException error);
+
+class ScannerController {
+  final _controller = StreamController<void>.broadcast();
+
+  void restart() {
+    if (_controller.isClosed) return;
+    _controller.add(null);
+  }
+
+  void dispose() => _controller.close();
+
+  Stream<void> get stream => _controller.stream;
+}
+
+enum QrDetectionSpeed {
+  noDuplicates,
+  unrestricted;
+}
+
+class _Throttler {
+  Timer? _timer;
+  bool _isRunning = false;
+  final Duration duration;
+
+  _Throttler(this.duration);
+
+  void run(void Function() func) {
+    if (_isRunning) return;
+    _isRunning = true;
+    dispose();
+    func();
+    _timer = Timer(duration, () {
+      _isRunning = false;
+      dispose();
+    });
+  }
+
+  void dispose() {
+    _timer?.cancel();
+    _timer = null;
+  }
+}
 
 class QrCamera extends StatefulWidget {
   const QrCamera({
     super.key,
     required this.qrCodeCallback,
+    this.controller,
     this.child,
     this.fit = BoxFit.cover,
+    this.detectionSpeed = QrDetectionSpeed.noDuplicates,
+    this.timeout = 250,
     WidgetBuilder? notStartedBuilder,
     WidgetBuilder? offscreenBuilder,
     ErrorCallback? onError,
@@ -29,14 +76,17 @@ class QrCamera extends StatefulWidget {
         offscreenBuilder = offscreenBuilder ?? notStartedBuilder ?? _defaultOffscreenBuilder,
         onError = onError ?? _defaultOnError;
 
+  final QrDetectionSpeed detectionSpeed;
+  final ScannerController? controller;
   final BoxFit fit;
-  final ValueChanged<String?> qrCodeCallback;
+  final ValueChanged<BarcodeData> qrCodeCallback;
   final Widget? child;
   final WidgetBuilder notStartedBuilder;
   final WidgetBuilder offscreenBuilder;
   final ErrorCallback onError;
   final List<BarcodeFormats>? formats;
   final CameraDirection cameraDirection;
+  final int timeout;
 
   static toggleFlash() {
     QrMobileVision.toggleFlash();
@@ -49,11 +99,19 @@ class QrCamera extends StatefulWidget {
 class QrCameraState extends State<QrCamera> with WidgetsBindingObserver {
   // needed for flutter < 3.0 to still be supported
   T? _ambiguate<T>(T? value) => value;
-
+  String? _lastScannedValue;
+  StreamSubscription<void>? _sub;
+  late final _throttler = _Throttler(Duration(milliseconds: widget.timeout));
   @override
   void initState() {
     super.initState();
     _ambiguate(WidgetsBinding.instance)!.addObserver(this);
+    if (widget.controller != null) {
+      _sub?.cancel();
+      _sub = widget.controller?.stream.listen((_) {
+        restart();
+      });
+    }
   }
 
   @override
@@ -65,6 +123,9 @@ class QrCameraState extends State<QrCamera> with WidgetsBindingObserver {
   @override
   dispose() {
     _ambiguate(WidgetsBinding.instance)!.removeObserver(this);
+    _throttler.dispose();
+    _sub?.cancel();
+    _sub = null;
     super.dispose();
   }
 
@@ -97,12 +158,12 @@ class QrCameraState extends State<QrCamera> with WidgetsBindingObserver {
   bool onScreen = true;
   Future<PreviewDetails>? _asyncInitOnce;
 
-  Future<PreviewDetails> _asyncInit(num width, num height) async {
+  Future<PreviewDetails> _asyncInit(double width, double height) async {
     final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
     return await QrMobileVision.start(
-      width: (devicePixelRatio * width.toInt()).ceil(),
-      height: (devicePixelRatio * height.toInt()).ceil(),
-      qrCodeHandler: widget.qrCodeCallback,
+      width: (devicePixelRatio * width).ceil(),
+      height: (devicePixelRatio * height).ceil(),
+      qrCodeHandler: (value) => _qrCodeHandler(value, Size(width, height)),
       formats: widget.formats,
       cameraDirection: widget.cameraDirection,
     );
@@ -115,6 +176,7 @@ class QrCameraState extends State<QrCamera> with WidgetsBindingObserver {
       await QrMobileVision.stop();
       setState(() {
         _asyncInitOnce = null;
+        _lastScannedValue = null;
       });
     })();
   }
@@ -141,7 +203,6 @@ class QrCameraState extends State<QrCamera> with WidgetsBindingObserver {
       } else if (!onScreen) {
         return widget.offscreenBuilder(context);
       }
-
       return FutureBuilder(
         future: _asyncInitOnce,
         builder: (BuildContext context, AsyncSnapshot<PreviewDetails> details) {
@@ -152,7 +213,7 @@ class QrCameraState extends State<QrCamera> with WidgetsBindingObserver {
             case ConnectionState.done:
               if (details.hasError) {
                 debugPrint(details.error.toString());
-                return widget.onError(context, details.error);
+                return widget.onError(context, QrException.fromError(details.error));
               }
               Widget preview = SizedBox(
                 width: constraints.maxWidth,
@@ -182,4 +243,31 @@ class QrCameraState extends State<QrCamera> with WidgetsBindingObserver {
       );
     });
   }
+
+  void _qrCodeHandler(BarcodeData barcode, Size cameraSize) async {
+    switch (widget.detectionSpeed) {
+      case QrDetectionSpeed.noDuplicates:
+        if (_lastScannedValue != null && barcode.rawValue == _lastScannedValue) return;
+        break;
+      case QrDetectionSpeed.unrestricted:
+        break;
+    }
+    _throttler.run(() {
+      _lastScannedValue = barcode.rawValue;
+      final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
+      widget.qrCodeCallback(barcode._normalize(devicePixelRatio, cameraSize, widget.fit));
+    });
+  }
+}
+
+extension _BarcodeDataExt on BarcodeData {
+  BarcodeData _normalize(double pr, Size cameraSize, BoxFit boxFit) {
+    return BarcodeData(
+      corners: corners.map((e) => e / pr).toList(),
+      rawValue: rawValue,
+      barcodeSize: barcodeSize / pr,
+      cameraSize: cameraSize,
+      boxFit: boxFit,
+    );
+  }
 }
diff --git a/lib/src/qr_channel_reader.dart b/lib/src/qr_channel_reader.dart
index 403388a..4c2699f 100644
--- a/lib/src/qr_channel_reader.dart
+++ b/lib/src/qr_channel_reader.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
+import 'package:qr_mobile_vision/src/barcode_data.dart';
 
 class QrChannelReader {
   QrChannelReader(this.channel) {
@@ -7,8 +8,9 @@ class QrChannelReader {
       switch (call.method) {
         case 'qrRead':
           if (qrCodeHandler != null) {
-            assert(call.arguments is String);
-            qrCodeHandler!(call.arguments);
+            final data = call.arguments;
+            assert(data is Map);
+            qrCodeHandler!(BarcodeData.fromNative(data));
           }
           break;
         default:
@@ -18,10 +20,10 @@ class QrChannelReader {
     });
   }
 
-  void setQrCodeHandler(ValueChanged<String?>? qrch) {
+  void setQrCodeHandler(ValueChanged<BarcodeData>? qrch) {
     qrCodeHandler = qrch;
   }
 
   MethodChannel channel;
-  ValueChanged<String?>? qrCodeHandler;
+  ValueChanged<BarcodeData>? qrCodeHandler;
 }
diff --git a/lib/src/qr_mobile_vision_method_channel.dart b/lib/src/qr_mobile_vision_method_channel.dart
index 0a6ecd4..44b0b4a 100644
--- a/lib/src/qr_mobile_vision_method_channel.dart
+++ b/lib/src/qr_mobile_vision_method_channel.dart
@@ -3,6 +3,7 @@ import 'dart:io';
 import 'package:device_info_plus/device_info_plus.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
+import 'package:qr_mobile_vision/src/barcode_data.dart';
 import 'package:qr_mobile_vision/src/barcode_formats.dart';
 import 'package:qr_mobile_vision/src/camera_direction.dart';
 import 'package:qr_mobile_vision/src/preview_details.dart';
@@ -22,7 +23,7 @@ class MethodChannelQrMobileVision extends QrMobileVisionPlatform {
   Future<PreviewDetails> start({
     required int width,
     required int height,
-    required ValueChanged<String?> qrCodeHandler,
+    required ValueChanged<BarcodeData> qrCodeHandler,
     CameraDirection cameraDirection = CameraDirection.BACK,
     List<BarcodeFormats>? formats = defaultBarcodeFormats,
   }) async {
diff --git a/lib/src/qr_mobile_vision_platform_interface.dart b/lib/src/qr_mobile_vision_platform_interface.dart
index edbf3c3..a1d4b1d 100644
--- a/lib/src/qr_mobile_vision_platform_interface.dart
+++ b/lib/src/qr_mobile_vision_platform_interface.dart
@@ -5,6 +5,8 @@ import 'package:qr_mobile_vision/src/camera_direction.dart';
 import 'package:qr_mobile_vision/src/preview_details.dart';
 import 'package:qr_mobile_vision/src/qr_mobile_vision_method_channel.dart';
 
+import 'barcode_data.dart';
+
 abstract class QrMobileVisionPlatform extends PlatformInterface {
   /// Constructs a QrMobileVisionPlatform.
   QrMobileVisionPlatform() : super(token: _token);
@@ -29,7 +31,7 @@ abstract class QrMobileVisionPlatform extends PlatformInterface {
   Future<PreviewDetails> start({
     required int width,
     required int height,
-    required ValueChanged<String?> qrCodeHandler,
+    required ValueChanged<BarcodeData> qrCodeHandler,
     CameraDirection cameraDirection = CameraDirection.BACK,
     List<BarcodeFormats>? formats = defaultBarcodeFormats,
   });
diff --git a/test/qr_mobile_vision_test.dart b/test/qr_mobile_vision_test.dart
index 395b246..161b211 100644
--- a/test/qr_mobile_vision_test.dart
+++ b/test/qr_mobile_vision_test.dart
@@ -2,6 +2,7 @@ import 'package:flutter/src/foundation/basic_types.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:plugin_platform_interface/plugin_platform_interface.dart';
 import 'package:qr_mobile_vision/qr_mobile_vision.dart';
+import 'package:qr_mobile_vision/src/barcode_data.dart';
 import 'package:qr_mobile_vision/src/preview_details.dart';
 import 'package:qr_mobile_vision/src/qr_mobile_vision_method_channel.dart';
 import 'package:qr_mobile_vision/src/qr_mobile_vision_platform_interface.dart';
@@ -18,7 +19,7 @@ class MockQrMobileVisionPlatform with MockPlatformInterfaceMixin implements QrMo
   Future<PreviewDetails> start({
     required int width,
     required int height,
-    required ValueChanged<String?> qrCodeHandler,
+    required ValueChanged<BarcodeData> qrCodeHandler,
     CameraDirection cameraDirection = CameraDirection.BACK,
     List<BarcodeFormats>? formats = defaultBarcodeFormats,
   }) async {
@@ -62,7 +63,7 @@ void main() {
     });
 
     test('start', () async {
-      handler(String? code) => print(code);
+      handler(BarcodeData code) => print(code);
       final details = await QrMobileVision.start(
         width: 100,
         height: 100,