title: How to Add a UIDatePicker to UIALertView in iOS7
body: <p>I have implemented datepicker in one of my view, 
  The way is added the datepicker to the Alertview. Now in iOS 7 i am not able to find the datepicker on the alertview, When searched i have got, we cannot add anything to alertview in iOS7. </p>
  
  <p>My requirement was When i will select the DOB textfield, I have to show the Datepickerview and modify the date and the changed value will be stored into the textfield.</p>
  
  <p>Now my problem is How can i show the datepicker on the alertview.</p>
  
  <p>I have tried showing on the view, but when trying to remove the datpicker from view it is not working.</p>