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. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkFormats fmt = new CkFormats();
    CkJsonObject json = new CkJsonObject();
    CkJsonObject jsonOut = new CkJsonObject();
    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");
    success = fmt.QrCode("generate",json,jsonOut);
    if (success == false) {
        System.out.println(fmt.lastErrorText());
        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");
    success = fmt.QrCode("generate",json,jsonOut);
    if (success == false) {
        System.out.println(fmt.lastErrorText());
        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");
    success = fmt.QrCode("generate",json,jsonOut);
    if (success == false) {
        System.out.println(fmt.lastErrorText());
        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");
    success = fmt.QrCode("generate",json,jsonOut);
    if (success == false) {
        System.out.println(fmt.lastErrorText());
        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
  }
}