title: SwipeRefreshLayout + WebView when scroll position is at top
body: <p>I'm trying to use SwipeRefreshLayout with WebView.</p>
  
  <p>I'm facing the problem where in the middle of page, when user scrolls down, unwanted refresh kicks in.</p>
  
  <p>How do I make the refresh event only happen when webview's scroll position is at the top. (ie, he's looking at the top portion of the page)?</p>