how to add tzstackview on scrollview.

[Sahilberi]

Hi,
i want to use tzstackview on scrollview to add dynamic content .when i try to add multiple contents on
tzstackview it gives them equal heights. i'm adding tzstackview on scrollview

var tzStackView: TZStackView!

override func viewDidLoad() {
super.viewDidLoad()
tzStackView = TZStackView(arrangedSubviews: createViews())
// tzStackView.backgroundColor = UIColor.redColor()
tzStackView.translatesAutoresizingMaskIntoConstraints = false
tzStackView.axis = .Vertical
tzStackView.distribution = .Fill
tzStackView.alignment = .Fill
tzStackView.spacing = 15

  self.scrollView.contentSize = CGSizeMake(self.view.bounds.size.width,      self.view.bounds.size.height * 2);

self.scrollView.addSubview(tzStackView)

let horizontalConstraint = NSLayoutConstraint(item: tzStackView, attribute: NSLayoutAttribute.Trailing, relatedBy: NSLayoutRelation.Equal, toItem: self.scrollView, attribute: NSLayoutAttribute.Trailing, multiplier: 1, constant: 0)

self.view.addConstraint(horizontalConstraint)

let verticalConstraint = NSLayoutConstraint(item: tzStackView, attribute: NSLayoutAttribute.Leading, relatedBy: NSLayoutRelation.Equal, toItem: self.scrollView, attribute: NSLayoutAttribute.Leading, multiplier: 1, constant: 0)
view.addConstraint(verticalConstraint)

let bottom = NSLayoutConstraint(item: tzStackView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.Equal, toItem: self.scrollView, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0)
view.addConstraint(bottom)

let top = NSLayoutConstraint(item: tzStackView, attribute: NSLayoutAttribute.Top
  , relatedBy: NSLayoutRelation.Equal, toItem: self.scrollView, attribute: NSLayoutAttribute.Top, multiplier: 1, constant: 0)
view.addConstraint(top)

}

private func createViews() -> [UIView] {

let textfield = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 100.00));
let textfield1 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield2 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 130.00));
let textfield3 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield4 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield5 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield6 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield7 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield8 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield9 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield10 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));
let textfield11 = UITextField(frame: CGRect(x: 0, y: 0, width: 500.00, height: 30.00));

textfield1.backgroundColor = UIColor.redColor().colorWithAlphaComponent(0.75)

return [textfield, textfield1, textfield2, textfield3, textfield4,textfield5,textfield6,textfield7,textfield8,textfield9,textfield10,textfield11]

}

i want tzstackview height same as scrollview.