title: FlatList with onLongPress callback
body: <p>I have a Flatlist that I would like to empty when the user long presses it.</p>
  
  <p>The problem is that surrounding the Flatlist with a TouchableOpacity prevents scrolling.</p>
  
  <p>I also <strong>cannot surround each item with a Touchable opacity</strong> because it's a list with columns and an uneven number of items. This means that at the bottom of the list, there is a leftover area with no items rendered. </p>
  
  <p>This leftover area should still react to the long press (as it is where most users will try to long press).</p>
  
  <p>How can I achieve that?</p>