title: Get the current scroll position of a SwiftUI ScrollView
body: <p>With the new <code>ScrollViewReader</code>, it seems possible to set the scroll offset programmatically.</p>
  <p>But I was wondering if it is also possible to <strong>get</strong> the current scroll position?</p>
  <p>It seems like the <code>ScrollViewProxy</code> only comes with the <code>scrollTo</code> method, allowing us to set the offset.</p>
  <p>Thanks!</p>