如何在baseadapter的webview上添加action bar？

public class MyAdapter extends BaseAdapter {
    private Context mContext;
    private List<String> mUrls;

    public MyAdapter(Context context, List<String> urls) {
        mContext = context;
        mUrls = urls;
    }

    @Override
    public int getCount() {
        return mUrls.size();
    }

    @Override
    public Object getItem(int position) {
        return mUrls.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        WebView webView;

        if (convertView == null) {
            webView = new WebView(mContext);
            webView.setLayoutParams(new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
            webView.setWebViewClient(new MyWebViewClient());
            convertView = webView;
        } else {
            webView = (WebView) convertView;
        }

        String url = mUrls.get(position);
        webView.loadUrl(url);

        return convertView;
    }

    private class MyWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (url.equals("your_action_url")) {
                // 执行相应的操作，例如显示ActionBar的菜单项
                ((AppCompatActivity) mContext).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
                return true;
            }

            return super.shouldOverrideUrlLoading(view, url);
        }
    }
}