(Swift 3,4,5...) Sorting Email

Demonstrates how to sort an email bundle.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

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

    let imap = CkoImap()!

    // Connect to the IMAP server.
    // Use TLS
    imap.ssl = true
    imap.port = 993
    var success: Bool = imap.connect("imap.someMailServer.com")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // Login
    success = imap.login("myLogin", password: "myPassword")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // Select an IMAP mailbox
    success = imap.selectMailbox("Inbox")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // We can choose to fetch UIDs or sequence numbers.
    var fetchUids: Bool = true

    // Pass any of the above strings here to test a search:
    var messageSet: CkoMessageSet? = imap.search("ALL", bUid: fetchUids)
    if imap.lastMethodSuccess == false {
        print("\(imap.lastErrorText!)")
        return
    }

    // Fetch the email headers into a bundle object:
    var bundle: CkoEmailBundle? = imap.fetchHeaders(messageSet)
    if imap.lastMethodSuccess == false {
        messageSet = nil
        print("\(imap.lastErrorText!)")
        return
    }

    // Sort the email bundle by date, recipient, sender, or subject:
    var ascending: Bool = true
    bundle!.sort(byDate: ascending)

    // To sort by recipient, sender, or subject, call 
    // SortBySender, SortByRecipient, or SortBySubject.

    // Display the Subject and From of each email.
    var i: Int = 0
    while i < bundle!.messageCount.intValue {
        var email: CkoEmail?
        email = bundle!.getEmail(i)

        print("\(email!.getHeaderField("Date")!)")
        print("\(email!.subject!)")
        print("\(email!.from!)")
        print("--")

        email = nil

        i = i + 1
    }

    // Disconnect from the IMAP server.
    success = imap.disconnect()

    messageSet = nil
    bundle = nil

}