title: Flutter: How to know WebView finish loading?
body: <p>I am new to flutter, and trying to display some of page (third party page) on my app. However, while the page is loading, the white screen somehow makes the users think the app is not working.
  I wonder if there is any way to implement the loading icon on app until the site completes loading. Or is there any signal from WebView that indicates site loading?</p>