detectFromImageFile static method
- Uri file,
- {List<
BarcodeFormat> ? barcodeFormats, - List<
BarcodeDocumentFormat> ? acceptedDocumentFormats, - BarcodeAdditionalParameters? barcodeAdditionalParameters}
Detect barcodes from image file uri
The Barcode Scanner is able to recognize 1D- and 2D-barcodes (QR codes, etc).
barcodeFormats
Format of barcode which need to recognize
acceptedDocumentFormats
Accepted Format of Documents which need to recognize
barcodeAdditionalParameters
Additional parameters for tweaking the detection of barcodes.
Implementation
static Future<BarcodeScanningResult> detectFromImageFile(
Uri file, {
List<BarcodeFormat>? barcodeFormats,
List<BarcodeDocumentFormat>? acceptedDocumentFormats,
BarcodeAdditionalParameters? barcodeAdditionalParameters,
}) async {
try {
barcodeAdditionalParameters ??= BarcodeAdditionalParameters();
acceptedDocumentFormats ??= <BarcodeDocumentFormat>[];
barcodeFormats ??= const <BarcodeFormat>[];
var detectFromImageParams = DetectFromImageParams(
file,
barcodeFormats,
acceptedDocumentFormats,
barcodeAdditionalParameters,
);
var barcodeScanningResult = await _channel.invokeMethod(
'detectFromImageFile', detectFromImageParams.toJson());
if (wasCanceled(barcodeScanningResult)) {
return BarcodeScanningResult.canceled();
}
return BarcodeScanningResult.fromJson(jsonDecode(barcodeScanningResult));
} catch (e) {
return BarcodeScanningResult.error(e.toString());
}
}