SFSafariViewController：隐藏导航栏

Question

我能够让我的应用程序通过SFSafariViewController根据这个post自动加载一个url，它工作的很好，唯一的缺点是导航栏。

当以这种方式使用SFSafariViewController导航栏时，这种方式毫无用处，因为url是只读的，'done'链接除了重新加载页面外没有其他任何操作。因此，我想完全隐藏导航栏。

根据接受的答案附带的评论，有人建议将我的根视图控制器设置为SFSafariViewController，我无法工作。设置很简单，因为有一个视图控制器，其代码包含在上述文章中。

如何隐藏导航栏，但仍然保持SFSafariViewController的好处？或者，如果我无法隐藏导航栏，至少隐藏“完成”链接？

代码片段：

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. 
    } 
} 

-----作品。导航栏“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 
    } 
} 

Answer 1

把这个代码viewDidAppear:

let safariViewController = SFSafariViewController(URL: url) 
presentViewController(safariViewController, animated: true) { 
    var frame = safariViewController.view.frame 
    let OffsetY: CGFloat = 64 
    frame.origin = CGPoint(x: frame.origin.x, y: frame.origin.y - OffsetY) 
    frame.size = CGSize(width: frame.width, height: frame.height + OffsetY) 
    safariViewController.view.frame = frame 
} 

要隐藏状态栏，在您的info.plist文件中设置View controller-based status bar appearance到YES并在此插入您的视图控制器。

override func prefersStatusBarHidden() -> Bool { 
    return true 
} 

警告：我会建议你反对，因为重装是不可能的（因为Reload按钮是在UINavigationBar的）使用SFSafariViewController全屏视图。如果请求失败，它将使应用程序无效。 改为使用自定义工具栏进行全屏WKWebView。

更新： 为了避免隐藏Reload按钮，只需在您的SFSafariViewController添加视图/ ImageView的在完成按钮和渲染按钮无形的或至少untappable。

presentViewController(svc, animated: true) { 
    let width: CGFloat = 66 
    let x: CGFloat = self.view.frame.width - width 

    // It can be any overlay. May be your logo image here inside an imageView. 
    let overlay = UIView(frame: CGRect(x: x, y: 20, width: width, height: 44)) 
    overlay.backgroundColor = UIColor.blackColor().colorWithAlphaComponent(0.5) 
    svc.view.addSubview(overlay) 
} 

这种方法的问题仅仅是覆盖在画面上停留，但如果你能找到它一个很好的形象，你将被罚款。

Answer 2

import Foundation 
import UIKit 
import SafariServices 

class MySafariFullScreenViewController: UIViewController { 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     //WONT WORK read only you need to override it in this VC or in SFSafVC using extension - see bottom of this code 
     //self.prefersStatusBarHidden = true 

    } 

    override func viewDidAppear(_ animated: Bool){ 
     let urlString = "https://......" 
     //if a log screen - i think SFSafariViewController can handle this 
     //let urlString = "https://<domain>login?redirect=https:<homescreen>" 


     if let url: URL = URL(string: urlString) { 
      let safariViewController = SFSafariViewController(url: url) 
      present(safariViewController, animated: true) { 

       var frame = safariViewController.view.frame 
       //if status bar not hidden 
       l//et OffsetY: CGFloat = 64 
       //if status bar hidden 
       let OffsetY: CGFloat = 44 

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


      } 
     }else{ 
      //url error 
     } 



    } 
    //this is for this vc - but for SFSafariVC you need override using extension 
    override var prefersStatusBarHidden: Bool{ 
     get{ 
      return true 
     } 
    } 

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

extension SFSafariViewController{ 
    override open var prefersStatusBarHidden: Bool{ 
     get{ 
      return true 
     } 
    } 
}