SiriKit无法在我的项目中发送邮件

import MessageUI

// 检查设备是否支持发送邮件
if MFMailComposeViewController.canSendMail() {
    let mailComposeViewController = MFMailComposeViewController()
    mailComposeViewController.mailComposeDelegate = self
    mailComposeViewController.setToRecipients(["recipient@example.com"])
    mailComposeViewController.setSubject("邮件主题")
    mailComposeViewController.setMessageBody("邮件正文", isHTML: false)
    
    // 如果需要附加文件，可以使用以下代码
    if let fileData = NSData(contentsOfFile: filePath) {
        mailComposeViewController.addAttachmentData(fileData as Data, mimeType: "application/pdf", fileName: "附件.pdf")
    }
    
    // 在视图控制器中显示邮件发送界面
    self.present(mailComposeViewController, animated: true, completion: nil)
} else {
    // 设备不支持发送邮件
    print("设备不支持发送邮件")
}