OnFocusChange not always working

You could try to clear the focus when user click on OK or other button....

e.g.

 builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() 
 {
     public void onClick(DialogInterface dialog, int whichButton) 
     {
          editText1.clearfocus();
          editText2.clearfocus();
          editText3.clearfocus();
          ....
     }
 }

You might want to try using: addTextChangedListener(..) in this case.