swift的QR Code的输出是一个String，QR Code如果Code包含vCardwith ，我需要保存swift。
我收到一条错误消息，提示它无法将CNContacts强制转换为CNMutableContacts
func foundCode(code: NSString) {
// Check if the QR Code is a website, contact, text etc
let types :NSTextCheckingType = [.Link , .PhoneNumber, .TransitInformation]
let checkTextType = try? NSDataDetector(types: types.rawValue )
let matchs = checkTextType?.matchesInString(code as String, options: .ReportCompletion, range: NSMakeRange(0, (code as String).characters.count))
for match in matchs! {
if match.resultType == NSTextCheckingType.Link {
UIApplication.sharedApplication().openURL(NSURL(string: code as String)!)
}
if match.resultType == NSTextCheckingType.PhoneNumber {
let vcard: NSData = code.dataUsingEncoding(NSUTF8StringEncoding)!
let contactStore = CNContactStore()
do {
let saveRequest = CNSaveRequest() // create saveRequests
let contacts = try? CNContactVCardSerialization.contactsWithData(vcard) // get contacts array from vCard
print("\(contacts)")
for person in contacts! {
saveRequest.addContact(person as! CNMutableContact, toContainerWithIdentifier: nil) // add contacts to saveRequest
}
try contactStore.executeSaveRequest(saveRequest) // save to contacts
} catch {
print("Unable to show the new contact") // something went wrong
}
}
}
}
您正在尝试转换immutableobject mutable，这就是为什么出现此错误的原因。saveRequest.addContact像这样改变你的行
saveRequest.addContact(person.mutableCopy() as! CNMutableContact, toContainerWithIdentifier: nil)
希望这会帮助你。
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