title: EditText setError message does not clear after input
body: <p>Ok so I only have a EditText field and a button, which when pressed triggers an AsyncTask.</p>
  
  <pre><code>EditText playerName = (EditText)findViewById(R.id.playerEditText);
  
  if(playerName.getText().toString().length() == 0 )
      playerName.setError("Player name is required!");
  else {
      // do async task
  }
  </code></pre>
  
  <p>The problem is that the error message seems to stay up even after when I input valid text to search. Is there a way to remove the error as soon as the EditText is not empty?</p>