title: setting index of UIPickerView iPhone
body: <p>I have multiple view controllers in my application with uipickerview (which get visible on clicking a button), in all view controllers I have an array which is the same for all views. That array is also used in picker view. </p>
  
  <pre><code>Array: (34DL3611, 34GF0512, 34HH1734, 34HH1736, 34YCJ15)
  </code></pre>
  
  <p>The scenario is that if user is in ViewController1 and he selects some value like 34HH1736 (at index-3) from picker view and goes to ViewController2, then in that view the value 34HH1736 will be shown in a label. </p>
  
  <p>Now user clicks on the button and uipickerview comes up, now the row value of picker view should be set at index-3 which is 34HH1736. But in my picker view it shows the first row selected which is index-0.</p>
  
  <p>How can I achieve this?</p>