How to load the html file from local disk

[AugustWangVeeva]

I download the html file and its zip, and unzip it to a folder in local temporary directory, it includes all the CSS and scripts,and also some assets like videos and images in local. I could get the index.html file path, and could run the index.html in local chrome, but how could I use webview_flutter_plus to load the index.html from local disk?