title: How to fetch the currently selected row in the uipickerview when tapped Done ( having multiple pickers)
body: <p>I have got <code>UIPickerview</code> in my application working fine.</p>
  
  <p>I want to change the default selection behavior of the <code>UIPickerview</code>, i mean i have a done button in the <code>UIToolbar</code>. The toolbar is added to the <code>UIPickerview</code>.</p>
  
  <p>Whenever the user taps on the "Done" button, I want to consider the highlighted entry as selected.
  That means user can move up and down , when the user taps on the "Done" button, i want to consider the selection now</p>
  
  <p>Please let me know , how can I fetch the currently selected row for the <code>UIPickerview</code> when tapped "Done" button</p>
  
  <p><em><strong>Note: I have 3 pickers in my view ( i mean i want to have pickerview tag and pickerview selected row)</em></strong></p>