UIPicker selectRow

Question

Hi Folks, I am trying to select the first row as default.. Here i tried

-(void)pickerViewLoaded{

   [pickerView setShowSelectionIndicator:YES];
   pickerView.delegate = self;
   [pickerView reloadAllComponents];
   [pickerView selectRow:1 inComponent:0 animated:YES]
}

It works fine when i call this method on viewDidLoad() which call didSelectRow method but it is selecting the second row of that component not first one. when i call with [pickerView selectRow:0 inComponent:0 animated:YES] then it never call didSelectRow method.

another problem is when i call pickerViewLoaded method on selection of segmented control it does not call the didSelectRow method. i still could not figure when it may call with viewDidLoad then why not with segmentedControl.

Thanks all,