title: Is there a way to get existing window insets after dispatch?
body: <p>Is there a way to fetch an activity's <code>WindowInsets</code> at will, long past the activity's creation, without holding on to it or otherwise caching it?</p>
  
  <p>eg.</p>
  
  <pre><code>WindowInsets insets = getWindow().getWindowInsets();
  myUseCaseView.setPaddingTop(insets.getSystemWindowInsetTop);
  </code></pre>