title: customize UIPickerView elements to start at top in xcode?
body: <p>1.--> I need to customize a UIPickerview elements to start from the top.As of now we can see the picker elements starting from the middle like the one shown in figure(apple started from middle of picker) but not from the top...
  Is there a way to do it?How can I do it ?</p>
  
  <p><img src="https://i.stack.imgur.com/bNQEI.jpg" alt="enter image description here"></p>
  
  <p>2.--> How can I make a PickerView Start At A Certain Row When It Is First Displayed
        I knew this code:</p>
  
  <pre><code>  [self.view addSubview:aPicker];
    [aPicker selectRow:14 inComponent:0 animated:NO];
  </code></pre>
  
  <p>But I have  a textfield and I want the textfield text (eg: California) which is also one of the element of pickerView ,but its row position is not known to be displayed as the default value of UIPickerView..How can I do it ?</p>