如何从WebView中提取html代码并将其放入TextView？

WebView webView = new WebView(context);
webView.loadUrl("http://example.com");

webView.setWebViewClient(new WebViewClient() {
    public void onPageFinished(WebView view, String url) {
        webView.evaluateJavascript("(function() { return document.documentElement.innerHTML; })();",
            new ValueCallback<String>() {
                @Override
                public void onReceiveValue(String html) {
                    // 将获取到的HTML代码放入TextView
                    TextView textView = findViewById(R.id.textView);
                    textView.setText(Html.fromHtml(html));
                }
            });
    }
});