加载webview后,如何使我的进度对话框解除？

WebView webView = findViewById(R.id.webView);
ProgressDialog progressDialog;

webView.setWebViewClient(new WebViewClient() {
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        progressDialog = ProgressDialog.show(YourActivity.this, "Loading", "Please wait...");
    }

    @Override
    public void onPageFinished(WebView view, String url) {
        if (progressDialog != null && progressDialog.isShowing()) {
            progressDialog.dismiss();
        }
    }
});

webView.loadUrl("https://www.example.com");