Using Uiactivityindicatorview with Uiwebview in Swift

Add an activity indicator on a uiwebview

How do I make the activity indicator stop only when the web page appears?

Your object can become delegate for webView to listen to -webViewDidFinishLoad delegate method. So:

- (void)viewDidLoad {
    // Create the UIWebView
    UIWebView *webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
    webView.delegate = self; // Here is the key
    ...
}

...

- (void)webViewDidFinishLoad:(UIWebView *)webView {
    [self.view viewWithTag:100].hidden = YES;
}

You may also implement -webViewDidStartLoad: to show activity indicator instead of showing it in -viewDidLoad method.

How do I add words to the activity indicator like "Loading"?

You should create a separate UILabel, there is no way to add text to standard UIActivityIndicatorView

How to add Activity Indicator to WKWebView (Swift 3)

Please, below code which is working fine.

@IBOutlet weak var Activity: UIActivityIndicatorView!
var webView : WKWebView!
@IBOutlet var containerView: UIView? = nil

override func viewDidLoad() {
    super.viewDidLoad()
    
    guard let url = URL(string: "http://www.facebook.com") else { return }
    webView = WKWebView(frame: self.view.frame)
    webView.translatesAutoresizingMaskIntoConstraints = false
    webView.isUserInteractionEnabled = true
    self.view.addSubview(self.webView)
    let request = URLRequest(url: url)
    webView.load(request)
    
    // add activity
    self.webView.addSubview(self.Activity)
    self.Activity.startAnimating()
    self.webView.navigationDelegate = self
    self.Activity.hidesWhenStopped = true
    
}

Implement below these two delegate method:

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    Activity.stopAnimating()
}

func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
    Activity.stopAnimating()
}

Let me know if it is not working.

UIActivityIndicatorView not showing in webview

Result:

Code:

class ViewController: UIViewController {

var loadSpinner: UIActivityIndicatorView!
var webView: UIWebView!

override func viewDidLoad() {
    super.viewDidLoad()

    self.webView = UIWebView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))

    loadSpinner = UIActivityIndicatorView(activityIndicatorStyle: .gray)

    webView.addSubview(loadSpinner)

    view = webView

    loadSpinner.startAnimating()
}

override func viewDidLayoutSubviews() {
    loadSpinner.center = webView.center
}
}

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