如何从Flutter代码中打开Swift中的Camera视图，以访问AutoFocus等相机功能

I'm writing my app in Flutter with the Camera plugin. However, I find that I need the built-in camera features of iOS, such as auto-focus. For this purpose, I need use Swift. Is there a way to do this from Flutter or I have to re-write my app entirely in Swift? Thanks.I'm writing my app in Flutter with the Camera p