         return mailCompseVC
     }
     
-    func showSendMailErrorAlert() {
+    private func showSendMailErrorAlert() {
         let sendMailErrorAlert = UIAlertView(title: "Could not send E-mail", message: "Your device could not send E-mail. Please check E-mail configuration and try again.", delegate: self, cancelButtonTitle: "OK")
         sendMailErrorAlert.show()
     }
     
-
-    /*
-    // MARK: - Navigation
-
-    // In a storyboard-based application, you will often want to do a little preparation before navigation
-    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
-        // Get the new view controller using segue.destinationViewController.
-        // Pass the selected object to the new view controller.
-    }
-    */
-
 }

        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    //  MARK: MFMailComposeViewControllerDelegate
    func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?) {
        controller.dismissViewControllerAnimated(true, completion: nil)
        self.mailComposeViewController = configuredMailComposeViewController()
        if result == MFMailComposeResultSent {
            SwiftNotice.clear()
            SwiftNotice.showNoticeWithText(NoticeType.success, text: "感谢反馈", autoClear: true, autoClearTime: 3)
        }
    }
    
    //  MARK: MFMailComposeViewController configure
    func configuredMailComposeViewController() -> MFMailComposeViewController {
        let mailCompseVC = MFMailComposeViewController()
        mailCompseVC.navigationBar.tintColor = UIColor.whiteColor();
        mailCompseVC.mailComposeDelegate = self

import UIKit
import MessageUI

final class AboutViewController: UIViewController {
    
    lazy var mailComposeViewController: MFMailComposeViewController = {
        return self.configuredMailComposeViewController()
    }()

    @IBOutlet weak var sendFeedbackButton: UIBarButtonItem!
    
