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iphone - ToolBar at the top of UIPIckerView in xcode?

I need to add a toolbar with done button on the top of UIPickerView. I don't want to use actionSheet because I want the rest of the view to be active. I've gone for the following code:

- (BOOL)textFieldDidBeginEditing:(UITextField *)textField {
  [txtstate resignFirstResponder];
  pickerView = [[UIPickerView alloc]init] ;
  pickerView.frame=CGRectMake(10, 75, 180,20);
  pickerView.delegate = self;
  pickerView.showsSelectionIndicator = YES;

  UIToolbar* toolbar = [[UIToolbar alloc] init];
  toolbar.frame=CGRectMake(0,75,180,10);
  toolbar.barStyle = UIBarStyleBlackTranslucent;
  UIBarButtonItem *flexibleSpaceLeft = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];


  UIBarButtonItem* doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done"
                                                                       style:UIBarButtonItemStyleDone target:self
                                                                      action:@selector(doneClicked:)];


   [toolbar setItems:[NSArray arrayWithObjects:flexibleSpaceLeft, doneButton, nil]];

   textField.inputAccessoryView = toolbar;
   [pickerView addSubview:toolbar];
   [self.view addSubview:pickerView];
}

By using the above code my toolbar is added but it is hidden under UIPickerView and it is getting added in the middle. How can I make the toolbar come to the front (on the top of UIPickerView) ?

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There is a simpler way You can insert the picker as inputView of your text Field and add the toolbar as inputAccessoryView to your textField like:

textField.inputView = pickerView;
textField.inputAccessoryView = toolBar;

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