如何创建要在共享表中使用的vCard / vcf文件？ [英] How to create vCard/vcf file to use in share sheet?

问题描述

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。

I'm new to swift and methods I am finding are deprecated regarding my issue. I'm building a directory app and I'm pulling contact data from an API, not from the phone's address book.

在iOS中，如果你去你的地址簿，您可以选择一个联系人，然后选择共享联系人，这会打开一个共享表。我想在我的应用程序中使用这个功能。

In iOS, if you go to your address book, you can select a contact and choose 'Share Contact' which brings up a share sheet. I want this exact functionality in my app.

我想想我找到了Share Sheets，这是我的代码：

I think I've got Share Sheets figured out, and here's my code for that:

    @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从该地址共享的对象书，对吗？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，以便将它分享到适当的应用程序（电子邮件，短信等）。

I want to to change "text" as NSString to be a vCard, as that is the object that iOS shares from the address book, right? Assuming I'm right, I want to create a vCard from my own app's contact object in order to share it to appropriate apps (email, sms, etc).

如何我可以在Swift中实现吗？如果我错了，请纠正我并告诉我我需要做什么。谢谢。

How can I achieve that in Swift? If I'm wrong, please correct me and show me what I need to do. Thanks.

编辑：好的，这是我的更改。

Okay, here's my changes.

@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, animated: true, 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
}

然而，当我点击分享按钮并显示我的共享表时，我选择了我想要共享的应用程序并且它不会添加/附加联系人数据如预期。我如何实现这一目标？

However, when I click the share button and it brings up my share sheet, I select the application I want to share to and it doesn't add/attach the contact data as intended. How do I accomplish this?

推荐答案

这里的技巧是使用<$将联系人保存到VCard（.vcf）文件c $ c> CNContactVCardSerialization.dataWithContacts ，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）

The trick here is to save the contact to a VCard (.vcf) file using CNContactVCardSerialization.dataWithContacts, then pass the file URL to the UIActivityViewController. The activity view controller detects the VCard format from the file extension, and shows the apps where the format is supported (e.g. Messages, Mail, Notes, Airdrop, etc)

示例：

@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, animated: true, 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
}

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