Unable to recognize the QR code from the image, the Codes are empty strings on Android and iOS

[b-fab-michael]

Please fix this issue as soon as possible, otherwise I'll have to add another image QR code recognition library for this.
Device：Xiaomi 13、iPhone 14 Pro

`I/flutter (30296): [E] zx.readBarcodeImagePathString : code==null --> false

I/flutter (30296): [E] zx.readBarcodeImagePathString : code.text -->

I/flutter (30296): [E] zx.readBarcodeImagePathString : code.text.length --> 0`

[khoren93]

Hello @b-fab-michael, could you kindly share the demo image required to replicate your problem? Thank you.

[b-fab-michael]

Hello @b-fab-michael, could you kindly share the demo image required to replicate your problem? Thank you.

`
void _onPicTap() async {
final res = await ImagePickerUtils.pickerPaths(
galleryMode: GalleryMode.image,
selectCount: 1,
showGif: false,
compressSize: 5120,
);
File file = File(res[0].path ?? '');
Code? qrcode = await zx.readBarcodeImagePathString(file.path);
LogUtil.e('zx.readBarcodeImagePathString : code==null --> ${qrcode==null}');
LogUtil.e('zx.readBarcodeImagePathString : code.text --> ${qrcode?.text}');
LogUtil.e('zx.readBarcodeImagePathString : code.text.length --> ${qrcode?.text?.length}');
if (qrcode != null) {
OXNavigator.pop(context, qrcode.text);
} else {
CommonToast.instance.show(context, "str_invalid_qr_code".commonLocalized());
}
}

`

This is my code. Please tell me. Is there anything else I need to improve?

[ozkayas]

@khoren93
I am also getting always isValid = false and empty result from scanned images.

[khoren93]

@b-fab-michael @ozkayas please check the v1.5.2. Thanks!

[frankmer]

Doesn't work with any QR code image I've tried.
I've using version 1.5.2.

For testing purposes, I created a QR with an online tool from the string "Test123" and selected it with the file_selector package.

Inside of the same widget:

@OverRide
void initState() {
zx.startCameraProcessing();
super.initState();
}

@OverRide
void dispose() {
zx.stopCameraProcessing();
super.dispose();
}

My Code:
final XFile? file = await openFile();
if (file == null) return;
log('Selected file: ${file.path}');
log('FileBytes: ${(await file.readAsBytes()).length}');
final result = await zx.readBarcodeImagePath(file);
log('ResultDuration: ${result.duration}');
log('ResultError: ${result.error}');
log('ResultFormat: ${result.format}');
log('ResultIsInverted: ${result.isInverted}');
log('ResultIsMirrored: ${result.isMirrored}');
log('ResultIsValid: ${result.isValid}');
log('ResultPosition: ${result.position}');
log('ResultRawBytes: ${result.rawBytes}');
log('ResultText: ${result.text}');

Output:
[log] Selected file: content://com.android.providers.media.documents/document/image%3A1000000179
[log] FileBytes: 26487
[log] ResultDuration: 23
[log] ResultError:
[log] ResultFormat: 0
[log] ResultIsInverted: false
[log] ResultIsMirrored: false
[log] ResultIsValid: false
[log] ResultPosition: Instance of 'Position'
[log] ResultRawBytes: null
[log] ResultText:

[mayurd2019]

It there any solution yet as I am also facing same issue. Not able to scan qr code from gallery image

[U-WHY]

Same issue and I can't find any solution for that.
There is my code & image, i test it in android api 34 & 29

Future _decodeQrCode() async {
final XFile? file = await ImagePicker().pickImage(source: ImageSource.gallery);
final DecodeParams params = DecodeParams(
imageFormat: ImageFormat.rgb,
format: Format.any,
tryHarder: false,
tryInverted: false,
isMultiScan: false,
);
final Code result = await zx.readBarcodeImagePath(file!,params);
if (result.isValid) {
print(result.text!);
} else {
print('WTFWTF!!');
}
}

[alejandrogiubel]

Any update on this?

[frankmer]

Any update on this?

currently i am using this code and it works super good.

  final DecodeParams params = DecodeParams(
     imageFormat: zxing.ImageFormat.rgb,
     format: Format.any,
     tryHarder: tryHarder,
     tryInverted: tryInverted,
     isMultiScan: false,
   );
   final text = (await zx.readBarcodeImagePath(file, params)).text;