title: Disable particular row value in UIPickerView
body: <p>I am trying to disable particular row in pickerView. </p>
  
  <p>I have an array of strings for pickerView. I am appending values in array1 when user selects particular row. </p>
  
  <p>After that I want to do that when user again opens pickerView if array1 has values of array, pickerView's that value should be disabled. </p>
  
  <p>How can I do that?</p>