CODEWITHSUNDEEP
iosswiftwebview
mistakeNot
mistakeNot

Reputation: 783

UIActivityIndicatorView nil?

I have hooked up an activityIndicator in the storyboard and created a webView programmatically. However when I load the VC, the program crashes complaining that the activityIndicator is nil. Why is this? I confirmed that the outlet is connected properly.

import UIKit
import WebKit

class ViewController: UIViewController, WKUIDelegate, WKNavigationDelegate {

    var webView: WKWebView!
    @IBOutlet weak var activityIndicator: UIActivityIndicatorView!

    override func loadView() {
        let webConfiguration = WKWebViewConfiguration()
        webView = WKWebView(frame: .zero, configuration: webConfiguration)
        webView.uiDelegate = self
        webView.navigationDelegate = self
        view = webView
    }
    override func viewDidLoad() {
        super.viewDidLoad()

        let myURL = URL(string: "https://www.google.com/")
        let myRequest = URLRequest(url: myURL!)
        webView.load(myRequest)
    }

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

    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
        activityIndicator.startAnimating()
        print("loadingwebpage")

    }

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        print("didfinishloadingwebpage")
        activityIndicator.stopAnimating()
    }
}

Upvotes: 2

Views: 677

Answers (1)

Jabson
Jabson

Reputation: 1703

You have this line :

view = webView

this mean you assign created webView to viewController's view. thats why your indicator destroy and cause crash.

add webView to viewcontroller's subview and crash will gone. change:

webView.frame = self.view.bounds
self.view.addSubview(webView)

Upvotes: 1

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