SFSafariViewController：隐藏导航栏

我可以使我的应用程序通过SFSafariViewController自动加载此帖子的网址，并且效果很好，唯一的缺点是导航栏。

以这种方式使用SFSafariViewController导航栏时，它是无用的，因为url是只读的，并且'done'链接除了重新加载页面外不执行任何操作。因此，我想完全隐藏导航栏。

根据已接受答案的注释，建议将我的根视图控制器设置为SFSafariViewController，但我无法正常工作。设置很简单，因为只有一个视图控制器，上面的文章中包含了代码。

如何隐藏导航栏，但仍保持SFSafariViewController的优势？或者，如果我无法隐藏导航栏，至少要隐藏“完成”链接？

程式码片段：

import UIKit
import SafariServices

class ViewController: UIViewController
{
    private var urlString:String = "https://example.com"

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

    override func viewDidAppear(animated: Bool)
    {

        super.viewDidAppear(animated)

        let svc = SFSafariViewController(URL: NSURL(string: self.urlString)!)

        self.presentViewController(svc, animated: true, completion: nil)

        self.navigationItem.rightBarButtonItem = nil
    }

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

-----可以。导航栏为“隐藏” -----

import UIKit
import SafariServices

class ViewController: UIViewController
{
    private var urlString:String = "https://example.com"

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

        // This will remove the status (battery, time, etc) bar
        UIApplication.sharedApplication().statusBarHidden = true
    }

    override func viewDidAppear(animated: Bool) {

        super.viewDidAppear(animated)

        let svc = SFSafariViewController(URL: NSURL(string: self.urlString)!)

        // Kind of a hack, in that we really aren't removing the navbar
        //  Rather we are adjusting the starting point of the vpc object so it appears as the navbar is hidden
        self.presentViewController(svc, animated: true) {

            var frame = svc.view.frame
            let OffsetY: CGFloat = 42

            frame.origin = CGPoint(x: frame.origin.x, y: frame.origin.y - OffsetY)
            frame.size = CGSize(width: frame.size.width, height: frame.size.height + OffsetY)
            svc.view.frame = frame
        }
    }

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

    // For this to work be sure to set the following setting to OFF, in info.plist
    //  'View controller-based status bar appearance'
    override func prefersStatusBarHidden() -> Bool {
        return true
    }
}