Communicate with the webview loaded JS method?

Can flutter communicate with the JS method loaded in WebView?
For example,
1.flutter calls some function of JS in web pages.
2.the JS in loaded webpage throwing events and it will receive by WebView, then pass to flutter?

flutter -> webview -> webpage -> JS
JS -> event -> webview -> flutter

从插件现有的 WebView 通信入口开始，这些入口在 issue 中尚未被指出。检查 Flutter 是否可以在已加载的页面中调用 JavaScript 并接收来自该页面的事件，然后验证其在受支持平台上的行为。当两个通信方向都能可靠工作，或已记录受支持的限制时，即视为完成。

由索引模型根据 Issue 内容生成。