Fontsize of two labels on one line - ios

Question

So what I want: I'd like to have a label on one line. The first word should have the font size 100 and the other has the font size 10. Does anybody have an idea how to achieve this?
When I'm calling the method below I would get a string composed of both label with the exactly same properties.
public let speedLabel: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.sizeToFit()
label.font = UIFont(name: "Helvetica-Bold", size: 100)
label.text = "0.0"
label.textColor = UIColor.blue
label.textAlignment = .left
return label
}()
public let speedUnitLabel: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.sizeToFit()
label.font = UIFont(name: "Helvetica-Bold", size: 10)
label.text = "km/h"
label.textAlignment = .right
label.textColor = UIColor.blue
return label
}()
This is how I set up those labels:
func setupSpeedLabel() {
SpeedContainerView.addSubview(speedLabel)
speedLabel.centerXAnchor.constraint(equalTo: TopBackGroundView.centerXAnchor, constant: 0).isActive = true
speedLabel.centerYAnchor.constraint(equalTo: SpeedContainerView.centerYAnchor, constant: 0).isActive = true
speedLabel.isUserInteractionEnabled = false
view.bringSubviewToFront(speedLabel)
}
func setupSpeedUnitLabel() {
SpeedContainerView.addSubview(speedUnitLabel)
speedUnitLabel.centerXAnchor.constraint(equalTo: speedLabel.leftAnchor, constant: 0).isActive = true
speedUnitLabel.centerYAnchor.constraint(equalTo: SpeedContainerView.centerYAnchor, constant: 0).isActive = true
speedUnitLabel.isUserInteractionEnabled = false
view.bringSubviewToFront(speedUnitLabel)
}

Answer 1

Tried the code and labels had different properties, so the problem could be related to the parent view of the labels.
What I did though was to change speedUnitLabel.centerXAnchor.constraint on setupSpeedUnitLabel() from speedLabel.leftAnchor, constant: 0 to speedLabel.rightAnchor, constant: 20 (the 20 constant is just to give a little space in between text).
Ended up with this
func setupSpeedUnitLabel() {
SpeedContainerView.addSubview(speedUnitLabel)
speedUnitLabel.centerXAnchor.constraint(equalTo: speedLabel.rightAnchor, constant: 20).isActive = true
speedUnitLabel.centerYAnchor.constraint(equalTo: SpeedContainerView.centerYAnchor, constant: 0).isActive = true
speedUnitLabel.isUserInteractionEnabled = false
view.bringSubviewToFront(speedUnitLabel)
}
And this is the output:
enter image description here
What I assume is what you are trying to achieve.
Make sure SpeedContainerView and its parent view are big enough to support the 100 font size.
Hope this helps.