title: Array Adapter notifyDataSetChanged() will not work
body: <p>I've been wasting too much time on this one so have to ask again. I've no idea why this is happening at all.</p>
  
  <p>I have an array adapter (aAdapter) and an array list (aList) and I'm trying to put a clear button to erase the entries in a database and to clear the list.</p>
  
  <p>My problem is that NotifyDataSetChanged() just wont work from inside my onlick method here:</p>
  
  <pre><code>public void clearDB(View view) {
      aList.clear();
      aAdapter.notifyDataSetChanged();
      HighScoresDB hsdb = new HighScoresDB(HighScoresActivity.this);
      hsdb.openDB();
      hsdb.clearDB();
      hsdb.closeDB();
  
  }
  </code></pre>
  
  <p>It works from everywhere else though. I've even tried putting the clear and notifyDataSetChanged() in another method and calling it but that doesn't work either but did work when I called it from the onCreate....</p>
  
  <p>Any ideas?</p>
  
  <p>p.s. the database is being cleared.</p>