Bottom border is not added to view in StackView (ios) - ios

Question

I am trying to add UIView with the bottom border programatically to stack view.But border is not getting added to UIView().
Code to add UIView to stack view:
func addOtpViews()
{
var otpLength=Int(otpLen as String)!
print("otpLength is\(otpLength)")
var i=0;
while(i<=otpLength)
{
var view=UIView(frame: .zero)
addBottomBorderTo(view: view)
otpStackView.addArrangedSubview(view)
i=i+1
}
otpStackView.translatesAutoresizingMaskIntoConstraints=false
}
on the above otpStackView is a stack view which I have already added in StoryBoard.
code to add bottom line:
func addBottomBorderTo(view:UIView) {
print("bottom is added")
let layer = CALayer()
layer.backgroundColor = UIColor.gray.cgColor
layer.frame = CGRect(x: 0.0, y: view.frame.size.height - 2.0, width: view.frame.size.width, height: 2.0)
view.layer.addSublayer(layer)
}
Why bottom line is not added to UIView()?Please help me.Thanks in advance.

Answer 1

have you checked the view frame here
layer.frame = CGRect(x: 0.0, y: view.frame.size.height - 2.0, width: view.frame.size.width, height: 2.0)
view.frame could be (0,0),then you will not see the bottom line.
always be careful when you work with view frame.
My suggestions:
1.Adding sub view instead of adding sub layer,then use snapkit to layout.
2.Build a seperate view class called bottomedView,then add sub view there with snapkit.
3.Build a seperate view class called bottomedView,and draw your bottom line in onDraw.
Always be aware view frame may not be determined when view is missing unexpectedly.