Activity Indicator Will Not Stop or Hide - ios

Question

I am using a custom activity indicator (http://swiftonic.com/customized-activity-indicator-in-swift-3/) for my IOS webview application. It is working but the issue I am having is that the indicator does not hide or disappear when the page is loading. The animation just continues. Here is my code
class ViewController: UIViewController, UIWebViewDelegate {
#IBOutlet var myWebView: WKWebView!
//#IBOutlet weak var activityIndicator: UIActivityIndicatorView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// In order to Show activityIndicatorView
ViewControllerUtils().showActivityIndicator(uiView: self.view)
// In order to hide activityIndicatorView
ViewControllerUtils().hideActivityIndicator(uiView: self.view)
let url = URL(string: "https://oasis.geneseo.edu")!
myWebView.navigationDelegate = self as? WKNavigationDelegate
myWebView.load(URLRequest(url: url))
}
According to the directions ViewControllerUtils().showActivityIndicator(uiView: self.view) should show the indicator and ViewControllerUtils().showActivityIndicator(uiView: self.view). Here is the code from the seperate file that I store the UIActivityIndicatorView in.
import Foundation
import UIKit
class ViewControllerUtils {
var container: UIView = UIView()
var loadingView: UIView = UIView()
var activityIndicator: UIActivityIndicatorView = UIActivityIndicatorView()
/*
Show customized activity indicator,
actually add activity indicator to passing view
#param uiView - add activity indicator to this view
*/
func showActivityIndicator(uiView: UIView) {
container.frame = uiView.frame
container.center = uiView.center
container.backgroundColor = UIColorFromHex(rgbValue: 0xffffff, alpha: 0.3)
loadingView.frame = CGRect(x: 0, y: 0, width: 80, height: 80)
loadingView.center = uiView.center
loadingView.backgroundColor = UIColorFromHex(rgbValue: 0x444444, alpha: 0.7)
loadingView.clipsToBounds = true
loadingView.layer.cornerRadius = 10
activityIndicator.frame = CGRect(x: 0, y: 0, width: 50, height: 50);
activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.whiteLarge
activityIndicator.center = CGPoint(x: loadingView.frame.size.width / 2, y: loadingView.frame.size.height / 2);
loadingView.addSubview(activityIndicator)
container.addSubview(loadingView)
uiView.addSubview(container)
activityIndicator.startAnimating()
}
/*
Hide activity indicator
Actually remove activity indicator from its super view
#param uiView - remove activity indicator from this view
*/
func hideActivityIndicator(uiView: UIView) {
activityIndicator.stopAnimating()
container.removeFromSuperview()
}
/*
Define UIColor from hex value
#param rgbValue - hex color value
#param alpha - transparency level
*/
func UIColorFromHex(rgbValue:UInt32, alpha:Double=1.0)->UIColor {
let red = CGFloat((rgbValue & 0xFF0000) >> 16)/256.0
let green = CGFloat((rgbValue & 0xFF00) >> 8)/256.0
let blue = CGFloat(rgbValue & 0xFF)/256.0
return UIColor(red:red, green:green, blue:blue, alpha:CGFloat(alpha))
}
}
Thanks in advance.

Answer 1

In your code you are creating 2 different ViewControllerUtils objects. You are showing the first one, and hiding the second one.
You can solve it as follows:
let indicator = ViewControllerUtils()
indicator.showActivityIndicator(uiView: self.view)
indicator.hideActivityIndicator(uiView: self.view)