Java Requires Chilkat v11.7.0+

QR Codes for Email, Phone, SMS and Location

See more QR Code Examples

Demonstrates QR codes that start an action on a phone. A QR code only holds text, and what happens on scanning depends on the form of that text: mailto: starts an email, tel: dials a number, SMSTO: starts a text message, and geo: opens a map at a latitude and longitude. A web address opens in the browser. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Formats;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Formats fmt = new Formats();
        JsonObject json = new JsonObject();
        JsonObject jsonOut = new JsonObject();
        json.updateInt("render.moduleSize", 6);
        json.updateBool("output.overwrite", true);
        json.updateString("output.return", "none");

        // An email, with the address and optionally a subject.  Spaces in the subject are written %20.
        json.updateString("payload.text", "mailto:support@example.com?subject=Order%2012345");
        json.updateString("output.path", "qa_output/qr_email.png");
        try {
            fmt.qrCode("generate", json, jsonOut);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("email: version " + jsonOut.intOf("symbols[0].selectedEncoding.version") + ", " + jsonOut.stringOf("outputs[0].path"));

        // 

        // A phone number to dial, in international form.
        json.updateString("payload.text", "tel:+15555550100");
        json.updateString("output.path", "qa_output/qr_phone.png");
        try {
            fmt.qrCode("generate", json, jsonOut);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("phone: version " + jsonOut.intOf("symbols[0].selectedEncoding.version") + ", " + jsonOut.stringOf("outputs[0].path"));

        // 

        // A text message: the number, then the message.
        json.updateString("payload.text", "SMSTO:+15555550100:Please call me back");
        json.updateString("output.path", "qa_output/qr_sms.png");
        try {
            fmt.qrCode("generate", json, jsonOut);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("sms: version " + jsonOut.intOf("symbols[0].selectedEncoding.version") + ", " + jsonOut.stringOf("outputs[0].path"));

        // 

        // A location: latitude, then longitude, in degrees.
        json.updateString("payload.text", "geo:41.8781,-87.6298");
        json.updateString("output.path", "qa_output/qr_location.png");
        try {
            fmt.qrCode("generate", json, jsonOut);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("location: version " + jsonOut.intOf("symbols[0].selectedEncoding.version") + ", " + jsonOut.stringOf("outputs[0].path"));

        // 

        // Sample output:

        // email: version 4, qa_output/qr_email.png
        // phone: version 2, qa_output/qr_phone.png
        // sms: version 3, qa_output/qr_sms.png
        // location: version 2, qa_output/qr_location.png
    }
}