ios - 使用未声明的类型 'MFMessageComposeViewControllerDelegate swift'

Question

我正在尝试使用 MFMessageComposeViewController 对象实现发送文本消息。但是当我试图声明 MFMessageComposeViewControllerDelegate 协议(protocol)时。在 ViewController.swift 中，我收到以下错误:use of undeclared type 'MFMessageComposeViewControllerDelegate swift'

ViewController.swift:

class ViewController: UIViewController, MFMessageComposeViewControllerDelegate {

@IBAction func sendMessage(sender: AnyObject) {
    var messageVC = MFMessageComposeViewController()

    messageVC.body = "Enter a message";
    messageVC.recipients = ["Enter tel-nr"]
    messageVC.messageComposeDelegate = self;

    self.presentViewController(messageVC, animated: false, completion: nil)
}


override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
}

有人可以帮帮我吗？

Answer 1

添加MessageUI框架，

import UIKit
import MessageUI

class ViewController: UIViewController, MFMessageComposeViewControllerDelegate {

}

希望对你有帮助