ios – 如何创建要在共享表中使用的vCard / vcf文件？

我是 swift的新手,我发现的方法因我的问题而被弃用.我正在构建一个目录应用程序,我从API中提取联系人数据,而不是从手机的地址簿中提取.

在iOS中,如果您转到地址簿,则可以选择联系人并选择“共享联系人”,这会显示共享表.我想在我的应用程序中使用这个功能.

我想我已经找到了Share Sheets,这是我的代码：

@IBAction func actShare(sender: AnyObject) {

    let activityViewController = UIActivityViewController(activityItems: ["text" as NSString],applicationActivities: nil)
    presentViewController(activityViewController,animated: true,completion: {})
}

我想将“text”更改为NSString作为vCard,因为这是iOS从地址簿中共享的对象,对吧？假设我是对的,我想从我自己的应用程序的联系对象创建一个vCard,以便将它分享给适当的应用程序(电子邮件,短信等).

我怎样才能在Swift中实现这一目标？如果我错了,请纠正我并告诉我我需要做什么.谢谢.

编辑：好的,这是我的变化.

@IBAction func actShare(sender: AnyObject) {
    do {
        var contactData = NSData()
        try contactData = CNContactVCardSerialization.dataWithContacts([createContact()])

        let activityViewController = UIActivityViewController(activityItems: [contactData as NSData],applicationActivities: nil)
        presentViewController(activityViewController,completion: {})
    } catch {
        print("CNContactVCardSerialization cannot save address")
    }

和

func createContact() -> CNMutableContact {
    let contactCard = CNMutableContact()
    contactCard.givenName = "John"
    contactCard.familyName = "Doe"
    contactCard.emailAddresses = [
        CNLabeledValue(label: CNLabelWork,value: "[e-mail]")
    ]

    return contactCard
}

但是,当我单击共享按钮并显示我的共享表时,我选择了要共享的应用程序,并且它不会按预期添加/附加联系人数据.我该如何做到这一点？

解决方法

这里的技巧是使用CNContactVCardSerialization.dataWithContacts将联系人保存到VCard(.vcf)文件,然后将文件URL传递给UIActivityViewController.活动视图控制器从文件扩展名中检测VCard格式,并显示支持该格式的应用程序(例如,消息,邮件,便笺,Airdrop等)

例：

@IBAction func buttonTapped(button: UIButton) {

    let contact = createContact()

    do {
        try shareContacts([contact])
    }
    catch {
        // Handle error
    }
}

func shareContacts(contacts: [CNContact]) throws {

    guard let directoryURL = NSFileManager.defaultManager().URLsForDirectory(.CachesDirectory,inDomains: .UserDomainMask).first else {
        return
    }

    var filename = NSUUID().UUIDString

    // Create a human friendly file name if sharing a single contact.
    if let contact = contacts.first where contacts.count == 1 {

        if let fullname = CNContactFormatter().stringFromContact(contact) {
            filename = fullname.componentsSeparatedByString(" ").joinWithSeparator("")
        }
    }

    let fileURL = directoryURL
        .URLByAppendingPathComponent(filename)
        .URLByAppendingPathExtension("vcf")

    let data = try CNContactVCardSerialization.dataWithContacts(contacts)

    print("filename: \(filename)")
    print("contact: \(String(data: data,encoding: NSUTF8StringEncoding))")

    try data.writeToURL(fileURL,options: [.AtomicWrite])

    let activityViewController = UIActivityViewController(
        activityItems: [fileURL],applicationActivities: nil
    )

    presentViewController(activityViewController,completion: {})
}

func createContact() -> CNContact {

    // Creating a mutable object to add to the contact
    let contact = CNMutableContact()

    contact.imageData = NSData() // The profile picture as a NSData object

    contact.givenName = "John"
    contact.familyName = "Appleseed"

    let homeEmail = CNLabeledValue(label:CNLabelHome,value:"[e-mail]")
    let workEmail = CNLabeledValue(label:CNLabelWork,value:"[e-mail]")
    contact.emailAddresses = [homeEmail,workEmail]

    contact.phoneNumbers = [CNLabeledValue(
        label:CNLabelPhoneNumberiPhone,value:CNPhoneNumber(stringValue:"[phone]"))]

    return contact
}