ios - 如何在 App 中将图像从 ImageView 附加到电子邮件

Question

得到以下内容。我制作了一个简单的 IOS/Swift 应用程序，需要将图像发送到特定的电子邮件。我已经开始工作了:

1. 拍照
2. 从现有照片中抓取图片
3. 图像显示在 ImageView 中
4. 发送按钮引导我发送已配置的邮件:收件人、主题和邮件正文。

我需要开始工作的是，当我按下发送键时，如何从 ImageView 中添加要添加到电子邮件中的选定图像。

下面是我使用的代码:

用于拍摄和选择图像:

@IBOutlet var imageView: UIImageView!

@IBOutlet weak var PicLabel: UILabel!

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.
}

@IBAction func FotoKnop(sender: AnyObject) {
}

@IBAction func chooseImageFromPhotoLibrary() {
    let picker = UIImagePickerController()

    picker.delegate = self
    picker.sourceType = .PhotoLibrary

    presentViewController(picker, animated: true, completion: nil)
}
@IBAction func chooseFromCamera() {
    let picker = UIImagePickerController()

    picker.delegate = self
    picker.sourceType = .Camera

    presentViewController(picker, animated: true, completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
    imageView.image = image
    self.dismissViewControllerAnimated(true, completion: nil)

}

用于电子邮件

    @IBAction func sendEmailButtonTapped(sender: AnyObject) {
        let mailComposeViewController = configuredMailComposeViewController()
        if MFMailComposeViewController.canSendMail() {
            self.presentViewController(mailComposeViewController, animated: true, completion: nil)

        } else {
        }
    }

    func configuredMailComposeViewController() -> MFMailComposeViewController {
        let mailComposerVC = MFMailComposeViewController()
        mailComposerVC.mailComposeDelegate = self // Extremely important to set the --mailComposeDelegate-- property, NOT the --delegate-- property
        mailComposerVC.setToRecipients(["jvanhattem@it-serve.nl"])
        mailComposerVC.setSubject("Mail vanuit PicMail")
        mailComposerVC.setMessageBody("Onderstaand de doorgestuurde informatie", isHTML:
            false)

        return mailComposerVC


    }


    func showSendMailErrorAlert() {
        let sendMailErrorAlert = UIAlertView(title: "Could Not Send Email", message: "Your device could not send e-mail.  Please check e-mail configuration and try again.", delegate: self, cancelButtonTitle: "OK")
        sendMailErrorAlert.show()
    }

    // MARK: MFMailComposeViewControllerDelegate Method
    func mailComposeController(controller: MFMailComposeViewController!, didFinishWithResult result: MFMailComposeResult, error: NSError!) {
        controller.dismissViewControllerAnimated(true, completion: nil)
    }
}

任何想法都会很棒!

Answer 1

func configuredMailComposeViewController() -> MFMailComposeViewController {
    let mailComposerVC = MFMailComposeViewController()
    mailComposerVC.mailComposeDelegate = self // Extremely important to set the --mailComposeDelegate-- property, NOT the --delegate-- property
    mailComposerVC.setToRecipients(["jvanhattem@it-serve.nl"])
    mailComposerVC.setSubject("Mail vanuit PicMail")
    mailComposerVC.setMessageBody("Onderstaand de doorgestuurde informatie", isHTML:
        false)

    //Add Image as Attachment
    if let image = imageView.image {
       let data = UIImageJPEGRepresentation(image, 1.0)
        mailComposerVC.addAttachmentData(data!, mimeType: "image/jpg", fileName: "image")
    }

    return mailComposerVC
}