WebView with SwipeRefreshLayout

Main.Java

public class Web extends AppCompatActivity {

   
    WebView mWebView;
    SwipeRefreshLayout swipeRefreshLayout;
    final Activity activity = this;

  
   public void onCreate(Bundle bundle) {
     super.onCreate(bundle);
     setContentView(R.layout.activity_web);


     swipeRefreshLayout = findViewById(R.id.swipeRefresh);
     
     mWebView = findViewById(R.id.WebView);
     mWebView.loadUrl(url);
     mWebView.setWebChromeClient(new chromeView());

     
     swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                swipeRefreshLayout.setRefreshing(false);
                mWebView.reload();
            }
        });

    }
     
   public class chromeView extends WebChromeClient {

        @Override
        public void onProgressChanged(WebView webView, int i) {
            activity.setTitle("  Loading ...");
            activity.setProgress(i * 100);
            if (i < 100) {
                swipeRefreshLayout.setRefreshing(true);
            } else if (i == 100) {
                activity.setTitle("Whatsapp Web");
                swipeRefreshLayout.setRefreshing(false);
            }
        }
    }
}