SFSafariViewController loads a blank white page

Question

I use SFSafariViewController to open a URL in my iOS application .. it worked fine on ios 9, but after upgrading my device to ios 10 it just loads a blank white page with no URL in the address bar .. even safariViewController (controller: SFSafariViewController , didCompleteInitialLoad didLoadSuccessfully: Bool) does not receive the call after the controller submits.

imported it into vc

import SafariServices 

the code:

  let url = NSURL(string: urlString)! if #available(iOS 9.0, *) { let safariVC = SFSafariViewController(URL: url) safariVC.delegate = self self.presentViewController(safariVC, animated: true, completion: { self.hideHUD() }) } else { // Fallback code } 

here is a reference to the same problem that someone else ran into

Answer 1

Try commenting on any loading animation you make, and try without it.

 ... // self.showHUD() // self.hideHUD() ... 

Due to a bug in iOS 10 introduced during a security patch that prevents the safariViewController from loading when using progress indicators and bootloaders added as a window above the main window

I really want Apple to commit the changes. I had to comment on the download indicator in my current application to make it work.

Answer 2

Came to this after seeing some similar problems that I saw when trying to use SafariViewController. Tracked my problems before using SafariViewController when a popup appeared. Compose code to show my problem and possible solution.

ViewController.swift:

  /* This view controller tries to boil down to the essence of a problem seen when trying to use SafariViewController. The net result is DO NOT present the SafariViewController when a popup is present. This controller and the associated popup show 3 ways to present the SafariViewController: Always Good: This uses a button on the controller to simply call the showSVC() routine and never had a problem. Good: This is a work-around for the "Bad" case to follow. In this case, we are using a button in a popup to bring up the SafariViewController. The trick is to get rid of the popup before calling showSVC(). This is done by dismissing the popup immediately without animation and then adding a delay before calling showSVC(). Seems to work fine, but using delays to accomplish things always seems a bit suspect. Use at your own risk. Bad: When this goes bad, a blank white screen is presented with no way to escape. Using "Reset Content and Settings..." in the simulator can get one back to where it will work one time. It seemed originally that this worked on iOS9 but not on iOS10. But now seems to fail similarly on both iOS9 and iOS10. This case is dismissing the popup with animation while trying to bring up the SafariViewController. Other info: This view controller is embedded in a navigation controller - basically to provide a navigation bar and button to act as the anchor point for the popup. The popup provides two buttons that call back to this controller with the "PopButtonPressedProtocol". This controller uses the title in the popup buttons to differentiate the "good" and "bad" cases. The problems shown by this example sounded similar to problems various others reported, but these reports may be for other reasons, which may or may not be similar. */ import UIKit import SafariServices class ViewController: UIViewController, UIPopoverPresentationControllerDelegate, PopButtonPressedProtocol { @IBOutlet weak var btnAlwaysGood: UIButton! @IBOutlet weak var btnPopup: UIBarButtonItem! let webAddr = "http://www.google.com" func delay(_ delay: Double, closure:@escaping ()->()) { DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(Int64(delay * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC), execute: closure) } func showSVC() { let svc = SFSafariViewController(url: URL(string: webAddr)!) self.present(svc, animated: true, completion: nil) } func popButtonPressed(_ button: UIButton) { if let title = button.currentTitle { switch title { case "Bad": dismiss(animated: true, completion: nil) showSVC() case "Good": dismiss(animated: false, completion: nil) delay(0.5, closure: { self.showSVC() }) default: break } } } func popupButtonPressed() { performSegue(withIdentifier: "popup", sender: nil) } func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle { // Needed for popup return .none } override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. btnAlwaysGood.addTarget(self, action: #selector(showSVC), for: .touchUpInside) btnPopup.target = self btnPopup.action = #selector(popupButtonPressed) } override func prepare(for segue: UIStoryboardSegue, sender: Any?) { if let vc = segue.destination as? PopVC { vc.delegate = self vc.modalPresentationStyle = .popover vc.preferredContentSize = CGSize(width: 60, height: 100) if let popover = vc.popoverPresentationController { popover.permittedArrowDirections = .any popover.delegate = self popover.barButtonItem = navigationItem.rightBarButtonItem } } } } 

PopVC.swift:

 import UIKit protocol PopButtonPressedProtocol : class { func popButtonPressed(_ button: UIButton) // protocol: } class PopVC: UIViewController { @IBOutlet weak var btnBad: UIButton! @IBOutlet weak var btnGood: UIButton! weak var delegate : PopButtonPressedProtocol? func buttonPressed(_ button: UIButton) { delegate?.popButtonPressed(button) } override func viewDidLoad() { super.viewDidLoad() btnBad.addTarget(self, action: #selector(buttonPressed(_:)), for: .touchUpInside) btnGood.addTarget(self, action: #selector(buttonPressed(_:)), for: .touchUpInside) } }