Swift

Get an Alternative Body by Content-Type

Demonstrates the Chilkat Email.GetAlternativeBodyByContentType method, which returns an alternative body selected by its Content-Type — such as text/plain, text/html, or text/xml — instead of by numeric index. This example retrieves both the plain-text and HTML alternatives by content type.

Background: Selecting by Content-Type is often more convenient than by index, because you usually know which representation you want (the HTML, say) but not its position in the alternative list. This mirrors how a mail client works — it looks up the best matching type to display — and avoids assumptions about ordering, which can vary between messages.

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Swift


func chilkatTest() {
    //  Demonstrates the GetAlternativeBodyByContentType method, which returns an alternative
    //  body selected by its Content-Type (such as text/plain, text/html, or text/xml) rather
    //  than by index.

    let email = CkoEmail()!

    //  Create an email with plain-text and HTML alternatives.
    email.setTextBody(bodyText: "This is the plain-text alternative.", contentType: "text/plain")
    email.addHtmlAlternativeBody(body: "<html><body>This is the HTML alternative.</body></html>")

    //  Get the plain-text alternative by its content type.
    var plain: String? = email.getAlternativeBody(byContentType: "text/plain")
    print("text/plain body: \(plain!)")

    //  Get the HTML alternative by its content type.
    var htmlBody: String? = email.getAlternativeBody(byContentType: "text/html")
    print("text/html body: \(htmlBody!)")

}