BarcodeScanning

Entry point to get a BarcodeScanner for recognizing barcodes (in a variety of 1D and 2D formats) in a supplied InputImage.

A BarcodeScanner is created via getClient(BarcodeScannerOptions) or getClient(). The default option is not recommended because it tries to scan all barcode formats, which is slow. For example, the code below creates a barcode scanner for Barcode.FORMAT_PDF417.

 BarcodeScanner barcodeScanner =
      BarcodeScanning.getClient(
          new BarcodeScannerOptions.Builder()
              .setBarcodeFormats(Barcode.FORMAT_PDF417)
              .build()); 

To perform barcode scanning in an image, you first need to create an instance of InputImage from a Bitmap, ByteBuffer, etc. See InputImage documentation for more details. For example, the code below creates an InputImage from an Image.

 InputImage image = InputImage.fromMediaImage(mediaImage, rotationDegrees); 

Then the code below can scan barcodes in the supplied InputImage.

 Task<List<Barcode>> task = barcodeScannerClient.process(image);
 task.addOnSuccessListener(...).addOnFailureListener(...);