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Aspose.BarCode for Android via Java 26.4

All Changes

KeySummaryCategory
BARCODENET-37745Reading barcodes from PDF - barcode is not recognizedBug
BARCODENET-38384Recognition of EAN barcodes while barcode read type is set to UPCBug
BARCODENET-38386Reader detects fragments of Code39Extended instead of VINBug
BARCODENET-38387Add option to BarCodeReader to recognize only required barcode typesEnhancement

Public API changes and New Features

OnlyRequestedTypes property for strict barcode type filtering

Methods setOnlyRequestedTypes(boolean) and isOnlyRequestedTypes():boolean have been added to the com.aspose.barcode.barcoderecognition.BarcodeSettings class.

When enabled, com.aspose.barcode.barcoderecognition.BarCodeReader returns only barcode types explicitly specified in the decoding settings. Compatible or equivalent barcode types are excluded from the results, even if they can be recognized.

When disabled, compatible and equivalent barcode types may be returned according to internal type mapping. For example, an EAN-13 barcode may be recognized when UPC-A is specified as the decoding type.

import android.util.Log;

import com.aspose.barcode.barcoderecognition.BarCodeReader;
import com.aspose.barcode.barcoderecognition.BarCodeResult;
import com.aspose.barcode.barcoderecognition.DecodeType;
import com.aspose.barcode.generation.BarcodeGenerator;
import com.aspose.barcode.generation.EncodeTypes;

import java.io.File;
import java.io.IOException;

public void example() throws IOException {
    File file = File.createTempFile("barcode", ".png");

    try {
        BarcodeGenerator generator = new BarcodeGenerator(EncodeTypes.EAN_13, "2383823482894");
        generator.save(file.getAbsolutePath());

        Log.d("BarcodeExample", "File saved to: " + file.getAbsolutePath());

        // Recognize only UPC-A barcodes.
        // No results are expected because the source barcode is EAN-13.
        BarCodeReader reader1 = new BarCodeReader(file.getAbsolutePath(), DecodeType.UPCA);
        reader1.getBarcodeSettings().setOnlyRequestedTypes(true);

        BarCodeResult[] barCodeResults1 = reader1.readBarCodes();

        if (barCodeResults1.length == 0) {
            Log.d("BarcodeExample", "No barcodes found (OnlyRequestedTypes = true)");
        }

        for (BarCodeResult result : barCodeResults1) {
            Log.d("BarcodeExample", "BarCode CodeText: " + result.getCodeText());
        }

        // Recognize compatible types: EAN-13, UPC-A, ISSN, ISMN, ISBN.
        // EAN-13 may be returned as a UPC-A-compatible result.
        BarCodeReader reader2 = new BarCodeReader(file.getAbsolutePath(), DecodeType.UPCA);
        reader2.getBarcodeSettings().setOnlyRequestedTypes(false);

        BarCodeResult[] barCodeResults2 = reader2.readBarCodes();

        if (barCodeResults2.length == 0) {
            Log.d("BarcodeExample", "No barcodes found (OnlyRequestedTypes = false)");
        }

        for (BarCodeResult result : barCodeResults2) {
            Log.d("BarcodeExample", "BarCode CodeText: " + result.getCodeText());
        }
    } finally {
        if (file.exists()) {
            file.delete();
        }
    }
}