Open camera not working

[KuntheasSoung]

Camera not working after I upgrade my flutter to 3.0.1 and dart 2.17.1.

[PhRezende-eng]

Some update?

[micaelsn]

Same problem here

[nguyenthao1988]

Same problem first open camera not start

[xang555]

same issue!

I temporary fixed by call controller.resumeCamera(); in _onQRViewCreated callback function

  void _onQRViewCreated(QRViewController controller) {
    setState(() {
      this.controller = controller;
    });

     // call resumeCamera fucntion
    controller.resumeCamera();

    controller.scannedDataStream.listen((scanData) {
      setState(() {
        result = scanData;
      });
    });
  }

[zakblacki]

Actually if you switch camera to front then back again it will work this only happen on camera launch

[swenhancer]

None of the workarounds works for me. Samsung S10+

[ricardo-kowalski]

None of the workarounds works for me. Samsung S10+

Same for me :/

[dnadawa]

Same for me

[ayechan-maung]

same issue!

I temporary fixed by call controller.resumeCamera(); in _onQRViewCreated callback function

  void _onQRViewCreated(QRViewController controller) {
    setState(() {
      this.controller = controller;
    });

     // call resumeCamera fucntion
    controller.resumeCamera();

    controller.scannedDataStream.listen((scanData) {
      setState(() {
        result = scanData;
      });
    });
  }

When I put the code there, the app going to crash.

[hmhung2531991]

same issue!

I temporary fixed by call controller.resumeCamera(); in _onQRViewCreated callback function

  void _onQRViewCreated(QRViewController controller) {
    setState(() {
      this.controller = controller;
    });

     // call resumeCamera fucntion
    controller.resumeCamera();

    controller.scannedDataStream.listen((scanData) {
      setState(() {
        result = scanData;
      });
    });
  }

Work for me

[swenhancer]

@hmhung2531991 which platform and which device?

[hmhung2531991]

I tested on Android. This issue happened on Android also

[svprdga]

I can confirm the issue and the workaround proposed by @xang555 works, though it provokes an error when running in iOS, this is what is working for me in both Android & iOS:

QRView(
  key: cameraKey,
  onQRViewCreated: (QRViewController controller) async {

    // [...]

    if (Platform.isAndroid) {
      await _qrViewController?.resumeCamera();
    }

    // [...]
  }
)

[edopras]

I can confirm the issue and the workaround proposed by @xang555 works, though it provokes an error when running in iOS, this is what is working for me in both Android & iOS:

QRView(
  key: cameraKey,
  onQRViewCreated: (QRViewController controller) async {

    // [...]

    if (Platform.isAndroid) {
      await _qrViewController?.resumeCamera();
    }

    // [...]
  }
)

work for me. Thanks

[roiskhoiron]

same issue!

I temporary fixed by call controller.resumeCamera(); in _onQRViewCreated callback function

  void _onQRViewCreated(QRViewController controller) {
    setState(() {
      this.controller = controller;
    });

     // call resumeCamera fucntion
    controller.resumeCamera();

    controller.scannedDataStream.listen((scanData) {
      setState(() {
        result = scanData;
      });
    });
  }

thanks it's work for me.