允许用户在android中黄色突出显示webview文本

WebView webView = findViewById(R.id.webView);
webView.loadUrl("https://www.example.com");

webView.setWebViewClient(new WebViewClient() {
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        // 在加载网页时进行自定义操作
        return super.shouldOverrideUrlLoading(view, url);
    }
});

webView.setWebViewClient(new WebViewClient() {
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl("javascript:(function() { " +
                "var elements = document.getElementsByTagName('body')[0].getElementsByTagName('*');" +
                "for (var i = 0; i < elements.length; i++) {" +
                "    elements[i].style.backgroundColor = 'yellow';" +
                "}" +
                "})()");
        return super.shouldOverrideUrlLoading(view, url);
    }
});