在花了一整天（>12 小时）试图在 13 行令人难以置信的通用代码中找出一个 bug 之后，我得出了一个可疑的结论，即CNContactPickerViewController在 iOS 9.2 的当前迭代中一定存在一个 bug。
只需复制+粘贴ViewController并将操作链接invite到按钮。
错误是MFMessageComposeViewController立即关闭自己。
如果有人知道该怎么做，请分享？
import UIKit
import MessageUI
import ContactsUI
class ViewController: UIViewController, MFMessageComposeViewControllerDelegate, CNContactPickerDelegate {
let contactPickerVC = CNContactPickerViewController()
let messageVC = MFMessageComposeViewController()
override func viewDidLoad() {
super.viewDidLoad()
contactPickerVC.delegate = self
}
func contactPicker(picker: CNContactPickerViewController, didSelectContact contact: CNContact) {
if let phoneNumberValue = contact.phoneNumbers.first?.value as? CNPhoneNumber {
if let phoneNumber = phoneNumberValue.valueForKey("digits") as? String {
// Configure message ViewController
messageVC.messageComposeDelegate = self
messageVC.recipients = [phoneNumber]
messageVC.body = "Yoyoyo"
picker.presentViewController(messageVC, animated: true, completion: nil)
}
}
}
func messageComposeViewController(controller: MFMessageComposeViewController, didFinishWithResult result: MessageComposeResult) {
controller.dismissViewControllerAnimated(true, completion: nil)
}
@IBAction func invite(sender: AnyObject) {
presentViewController(contactPickerVC, animated: true, completion: nil)
}
}