title: Android Pointer Indicies vs Identifiers
body: <p>I'm reading through Beginning Android Games(for Beginners), which I must say has been very helpful.</p>
  
  <p>I'm on the topic of handling Multi-touch events, and by far the part that is <strong>most confusing</strong> is the difference between <em>pointer indexes</em> and <em>identifiers(ID's)</em>. I understand that the indexes aren't always corresponding to the number of fingers, but what about the ID's?</p>
  
  <p>Say I put 3 fingers down on the screen; could I assume that the first finger would have <code>Index var</code>, and for the <code>ID 0</code>. Second finger <code>Index var</code> and <code>ID 1</code>, and so on? Do the ID's always correspond in that manner and if they don't, what is the <code>Identifier</code> of the finger?</p>