不能一键回到页面顶端吗?目前没找到一键回顶端的方法

操作系统:Android 9 (ELE-AL00 HUAWEI/ELE-AL00 9.1.0.193(C00E190R2P1)/App6.91/v20006916)

WebView:Mozilla/5.0 (Linux; Android 9; ELE-AL00 Build/HUAWEIELE-AL00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/76.0.3809.111 Mobile Safari/537.36