来自自定义框架的 Swift 电子邮件失败

Question

我制作了一个自定义框架(Swift)，我在几个不同的应用程序中使用它。

我在此框架中添加的一项功能是基本电子邮件客户端。

代码如下，但它当前描述了以下行为:

最初完美加载电子邮件页面 View ，所有字段均按我期望的方式显示(即地址、密件抄送、主题、附件等)，但是当我按发送或取消时，应用程序崩溃。但它实际上发送了电子邮件。我已经在“public func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?)”中打印了一个打印内容，但从未打印过。

请参阅下面的代码:

框架

import UIKit
import MessageUI


public class Framework_Email : NSObject, MFMailComposeViewControllerDelegate{

    var picker : MFMailComposeViewController!

    public var EmailSubject    : String = ""
    public var EmailMessage    : String = ""
    public var EmailAddress    : [String] = []
    public var EmailBlindAddress    : [String] = []
    public var EmailAttachment : [NSDictionary] = []

    public func SendEmail(View : UIViewController)
    {
        picker = MFMailComposeViewController()
        picker.mailComposeDelegate = self
        picker.setToRecipients(EmailAddress)
        picker.setSubject(EmailSubject)
        picker.setMessageBody(EmailMessage, isHTML: false)
        picker.setBccRecipients(EmailBlindAddress)

        for temp in EmailAttachment
        {
            picker.addAttachmentData(temp["Data"] as! NSData, mimeType: temp["Type"] as! String, fileName: temp["Name"]as! String)
        }
        View.presentViewController(picker, animated: true, completion: nil)
    }

    public func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result:     MFMailComposeResult, error: NSError?) {
        print("Im Here!!!!!") //This is never seen in the output
        picker.dismissViewControllerAnimated(true, completion: nil)
    }
}

我在主应用程序 View Controller 中通过以下方式调用它

let EmailClient : Framework_Email = Framework_Email()
EmailClient.EmailAddress = ["email@eailaddress.co.uk"]
EmailClient.EmailMessage = "Email Message"
EmailClient.EmailSubject = "Email Subject"
EmailClient.EmailBlindAddress = ["email@eailaddress.co.uk"]
EmailClient.SendEmail(self)

谁能告诉我为什么这行不通？

谢谢

Answer 1

在您的关闭方法中使用 Controller 而不是选择器:

public func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?) { 
print("Im Here!!!!!") //This is never seen in the output
controller.dismissViewControllerAnimated(true, completion: nil)
}