webView.setWebViewClient

(webViewClient);

The above line of code sets the WebViewClient for the WebView. The WebViewClient is responsible for handling events that occur within the WebView such as page loading, error handling, and resource loading. By setting a custom WebViewClient, you can override the default behavior of the WebView and handle these events in your own way.

For example, you can create a WebViewClient that intercepts all links clicked within the WebView and opens them in a new WebView instead of the default browser. This can be useful if you want to keep the user within your app and provide a consistent user experience.

Overall, setting a WebViewClient is an important step in customizing the behavior of the WebView and providing a better user experience for your app's users.