title: Disable button after first click
body: <p>I'm making a game, which include two activities.<br>
  I have one </p>
  
  <p><code>static  class ModelGetter: public static int getPoint{int static point++;}</code>. </p>
  
  <p>When click a button in the first activity, the counter is incremented
  How can I avoid that in the same activity if I press twice the same button the counter don't incremente a counter two time, but just one?</p>