flutter_qr_code

A new Flutter QrCode plugin.

Important: Currently only supports Android platform, welcome to submit PR.

Installing

You should add the following to your pubspec.yaml file:

dependencies:
  flutter_qr_code: ^0.0.2+2

More documentation : https://pub.dev/packages/flutter_qr_code/install

Getting Started

To start, import the package in your code:

import 'package:flutter_qr_code/platform_interface.dart';
import 'package:flutter_qr_code/qr_scan_controller.dart';
import 'package:flutter_qr_code/qr_scan_view.dart';

Just like using a Flutter widget:

QrScanView(
    // QrScanView Created
    onCreated: (QrScanController controller) {
        _controller = controller;
        controller.startCamera();
        controller.startSpotAndShowRect();
    },
    // The QR code is successfully recognized
    onScanQRCodeSuccess: (String result) {
        print("onScanQRCodeSuccess: $result");
        _controller.startSpot();
    },
    // The environment brightness changes, 
    // you can change the flash state
    onCameraAmbientBrightnessChanged: (bool isDark) {
        print("onCameraAmbientBrightnessChanged: $isDark");
    },
    // When recognizing the QR code, an error occurred
    onScanQRCodeOpenCameraError: () {
        print("onScanQRCodeOpenCameraError: ");
    },
)

Screenshot

QrScanController Method

1、Camera preview

controller.startCamera()
controller.stopCamera()

2、Identify the QR code

controller.startSpot()
controller.stopSpot()

3、Scan grid

controller.showScanRect()
controller.hiddenScanRect()

// show Scan grid And Start Identify the QR code
controller.startSpotAndShowRect()
// hide Scan grid And Stop Identify the QR code
controller.stopSpotAndHiddenRect()

4、Flashlight

controller.openFlashlight()
controller.closeFlashlight()

5、decode local image

controller.decodeQRCode(local_img_path)

For more information, see the example.

Credits

Android: https://github.com/bingoogolapple/BGAQRCode-Android

License

Copyright 2020 wshunli

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

   http://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.