Java

ZATCA Decode QR Code

See more ZATCA Examples

Decodes a base64 ZATCA QR code.

Note: This example requires Chilkat v9.5.0.92 or greater.

Chilkat2 Java

import com.chilkatsoft.chilkat2.BinData;

public class ChilkatExample {

    public static void main(String[] args) {
        // Note: This example requires Chilkat v9.5.0.92 or greater.

        String qr = "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";

        qr = "AQxGaXJveiBBc2hyYWYCCjEyMzQ1Njc4OTEDEzIwMjEtMTEtMTcgMDg6MzA6MDAEBjEwMC4wMAUFMTUuMDAGLDlmc3JYVW8rU3BYQVlJTkw5aGFLU2dEOXgxaVJsZk53SVBDZnBlWXczYTA9B1hYMEM4VjFIL3hUMGdOaytWWXh2U2Z6UFJlUjZPM2t5VXA0TERITzJLMzlNSGJETXVvTGltQSt3RnovV2pVdEdMSHpaK0J5enNmWUdEQzliNUFGSU1FQT09CFgwVjAQBgcqhkjOPQIBBgUrgQQACgNCAARw3B+mu14x0h3pJFKqEWWT7DmD7jWYkZV7qHyikPlN4P/4/b7YD+A9wnFI92HTKm+/BGKXVf/pfLtsmdIIaPHnCUgwRgIhAMTjOkWwcNu5Aw5k1Yr3YgbPhdxKoJV1a3+5ShPtx1/IAiEAyrwsA/NuqV6XjybyrZpMp6eJAqslACLfCldti/PVOQs=";

        BinData bd = new BinData();
        bd.appendEncoded(qr, "base64");

        int index = 0;
        int expectedTag = 1;
        int tag = 0;
        int len = 0;
        String tagValue = "";

        while (expectedTag <= 9) {
            // Get the tag
            tag = bd.getByte(index);
            if (tag != expectedTag) {
                System.out.println("Expected tag " + expectedTag);
                return;
            }

            index = index + 1;
            len = bd.getByte(index);
            if (len == 0) {
                System.out.println("Expected length > 0");
                return;
            }

            index = index + 1;
            // Tags 8 and 9 contain binary data.
            if (expectedTag >= 8) {
                tagValue = bd.getEncodedChunk(index, len, "base64");
            } else {
                tagValue = bd.getTextChunk(index, len, "utf-8");
            }

            System.out.println("tag " + tag + ": " + tagValue);

            index = index + len;
            expectedTag = expectedTag + 1;
        }
    }
}