title: set focus in unfilled edittext how can implemented android application
body: <p>I am implementing  one application gust i am adding validations in login page implemented then two fields required username and password  button login i am applying validations then focus are not getting then set focus in unfilled edittext </p>
  
  <p>></p>
  
  <pre><code> if(Username.contentEquals("")) {
      &gt; Toast.makeText(LBS.this, "Please enter
      &gt; username ",Toast.LENGTH_SHORT).show(); 
      &gt; } else { if( pwd.contentEquals("")) 
      &gt; Toast.makeText(LBS.this, "Please enter
      &gt; password ",Toast.LENGTH_SHORT).show();
      &gt; else
      &gt;             try { ........................... }
  </code></pre>
  
  <p>not filling username then filling password then username entered some toast displayed fine focus are entered in username edittext this is the problem how can implemented focus in unfilled username   </p>