title: add current day with one day after and one day before to date picker objective-C
body: <p>I have a datepicker and I want to have just one row with 3 options: current day, one day after and one day before .</p>
  
  <p>Would you help me to do that?</p>
  
  <p><strong>My question is, how can I add 'current day' with one day after and one day before ?</strong></p>