amit-pnkfrg/flutter_web_qrcode_scanner

📷 flutter_web_qrcode_scanner

Flutter Web plugin for scanning QR codes

🛠️ Getting Started

Firstly you need to add this plugin flutter_web_qrcode_scanner:1.1.1 to your pubspec.yaml file.

dependencies:
  flutter_web_qrcode_scanner:1.1.1

Then you need to add <script src="https://cdn.jsdelivr.net/npm/jsqr@1.4.0/dist/jsQR.min.js"></script> to your index.html file after body tag.

  <script src="https://cdn.jsdelivr.net/npm/jsqr@1.4.0/dist/jsQR.min.js"></script>

🏃 Usage

Auto play example, The video preview (scanning area) will start automatically

 FlutterWebQrcodeScanner(
    cameraDirection: CameraDirection.back,
    stopOnFirstResult: true, //set false if you don't want to stop video preview on getting first result
    onGetResult: (result) {
           // _result = jsonDecode(result);
    },
    //width:200,
    //height:200,
 )

You are able to choose the scanning camera via the cameraDirection attribute CameraDirection.back or CameraDirection.front,

If you want to control the start and stop of camera scanning, you must use the CameraController attribute

CameraController _controller = CameraController(autoPlay: false);

then you can start and stop video preview by calling methods startVideoStream() and stopVideoStream()

InkWell(
  //some code
  onTap:(){
    _controller.startVideoStream();
    },
)
.
.
.
FlutterWebQrcodeScanner(
  controller: _controller,
  onGetResult: (result) {
            // some code
         _controller.stopVideoStream();
      },
    )