In this code snipped demonstrates how to:

• Create UIWebView programmatically
• Implement UIWebViewDelegate functions webViewDidStartLoad and webViewDidFinishLoad
• Load HTML file into UIWebView programmatically

import UIKit

class ViewController: UIViewController, UIWebViewDelegate {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        let myWebView:UIWebView = UIWebView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height))
        
        self.view.addSubview(myWebView)
        
        myWebView.delegate = self
        
        
        //3. Load local html file into web view
        let myProjectBundle:Bundle = Bundle.main
        
        let filePath:String = myProjectBundle.path(forResource: "my-html-file", ofType: "html")!
        
        let myURL = URL(string: filePath);
        let myURLRequest:URLRequest = URLRequest(url: myURL!)
        
        myWebView.loadRequest(myURLRequest)
        
        
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    func webViewDidStartLoad(_ webView: UIWebView)
    {
        print("Started to load")
    }
    func webViewDidFinishLoad(_ webView: UIWebView)
    {
        print("Finished loading")
    }
    
}

 

Watch this video tutorial to learn how to create UIWebView using Xcode and Main Storyboard.

UIWebView and UIWebViewDelegate example in Swift

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