ios - 短信功能在设备上返回错误

Question

我正在从 Firebase 数据库中检索电话号码，无论我如何将其输入数据库，它都会在我的设备上返回错误:

"Message sent to invalid destination. Please check your number and try again. Msg 2127"

消息发送后立即自动回复。我尝试将其输入 firebase 作为 111-111-1111 和 1111111111 (实际上不是使用数字 1，而是真实的电话号码)。

调用功能工作正常，但发送短信的同一号码不起作用。

var contact: Int!
@IBAction func textButton(_ sender: Any) {
    if canSendText() {
          if let contactopt = contact{
            var messageVC = MFMessageComposeViewController()
        messageVC.recipients = ["tel:\(contactopt)"]
        messageVC.messageComposeDelegate = self;

            self.present(messageVC, animated: false, completion: nil)}}
    else {
        let errorAlert = UIAlertView(title: "Cannot Send Text Message", message: "Your device is not able to send text messages.", delegate: self, cancelButtonTitle: "OK")
        errorAlert.show()
    }

}


func canSendText() -> Bool {
    return MFMessageComposeViewController.canSendText()
}

func messageComposeViewController(_ controller: MFMessageComposeViewController, didFinishWith result: MessageComposeResult) {

    controller.dismiss(animated: true, completion: nil)
}


 @IBAction func callButton(_ sender: UIButton) {

    if let contactopt = contact{

    if let url = NSURL(string: "tel://\(contactopt)") {
    //    UIApplication.shared.openURL(url as URL)
        UIApplication.shared.open(url as URL, options: [:], completionHandler: nil)

}
}
}

Answer 1

我必须改变 messageVC.recipients = ["电话:(contactopt)"]

messageVC.recipients = [String(contactopt)]