Swift 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. Swift

func chilkatTest() {
    var success: Bool = false

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

    let fmt = CkoFormats()!
    let json = CkoJsonObject()!
    let jsonOut = CkoJsonObject()!
    json.updateInt(jsonPath: "render.moduleSize", value: 6)
    json.updateBool(jsonPath: "output.overwrite", value: true)
    json.updateString(jsonPath: "output.return", value: "none")

    //  An email, with the address and optionally a subject.  Spaces in the subject are written %20.
    json.updateString(jsonPath: "payload.text", value: "mailto:support@example.com?subject=Order%2012345")
    json.updateString(jsonPath: "output.path", value: "qa_output/qr_email.png")
    success = fmt.qrCode(op: "generate", jsonIn: json, jsonOut: jsonOut)
    if success == false {
        print("\(fmt.lastErrorText!)")
        return
    }

    print("email: version \(jsonOut.int(of: "symbols[0].selectedEncoding.version").intValue), \(jsonOut.string(of: "outputs[0].path")!)")

    //  

    //  A phone number to dial, in international form.
    json.updateString(jsonPath: "payload.text", value: "tel:+15555550100")
    json.updateString(jsonPath: "output.path", value: "qa_output/qr_phone.png")
    success = fmt.qrCode(op: "generate", jsonIn: json, jsonOut: jsonOut)
    if success == false {
        print("\(fmt.lastErrorText!)")
        return
    }

    print("phone: version \(jsonOut.int(of: "symbols[0].selectedEncoding.version").intValue), \(jsonOut.string(of: "outputs[0].path")!)")

    //  

    //  A text message: the number, then the message.
    json.updateString(jsonPath: "payload.text", value: "SMSTO:+15555550100:Please call me back")
    json.updateString(jsonPath: "output.path", value: "qa_output/qr_sms.png")
    success = fmt.qrCode(op: "generate", jsonIn: json, jsonOut: jsonOut)
    if success == false {
        print("\(fmt.lastErrorText!)")
        return
    }

    print("sms: version \(jsonOut.int(of: "symbols[0].selectedEncoding.version").intValue), \(jsonOut.string(of: "outputs[0].path")!)")

    //  

    //  A location: latitude, then longitude, in degrees.
    json.updateString(jsonPath: "payload.text", value: "geo:41.8781,-87.6298")
    json.updateString(jsonPath: "output.path", value: "qa_output/qr_location.png")
    success = fmt.qrCode(op: "generate", jsonIn: json, jsonOut: jsonOut)
    if success == false {
        print("\(fmt.lastErrorText!)")
        return
    }

    print("location: version \(jsonOut.int(of: "symbols[0].selectedEncoding.version").intValue), \(jsonOut.string(of: "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

}