UIView not adjusting width according to subviews? - ios

Question

I'm trying to creating a reusable UIView subclass, with a UILabel and UIImageView as subviews. My view subclass should adjust its width according to the label's width.
Here is my class-
class CustomView: UIView {
private var infoLabel: UILabel!
private var imageView: UIImageView!
override init(frame: CGRect) {
super.init(frame: frame)
infoLabel = UILabel(frame: CGRect.zero)
imageView = UIImageView(frame: CGRect.zero)
addSubview(infoLabel)
addSubview(imageView)
infoLabel.backgroundColor = .white
imageView.backgroundColor = .gray
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
override func updateConstraints() {
super.updateConstraints()
infoLabel.translatesAutoresizingMaskIntoConstraints = false
imageView.translatesAutoresizingMaskIntoConstraints = false
infoLabel.leadingAnchor.constraint(
equalTo: self.leadingAnchor, constant: 5).isActive = true
// infoLabel.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
infoLabel.topAnchor.constraint(equalTo: self.topAnchor, constant: 5).isActive = true
infoLabel.bottomAnchor.constraint(equalTo: self.bottomAnchor, constant: 5).isActive = true
imageView.leadingAnchor.constraint(
equalTo: infoLabel.trailingAnchor, constant: 10).isActive = true
//imageView.trailingAnchor.constraint(
//equalTo: self.trailingAnchor, constant: 10).isActive = true
//imageView.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
imageView.widthAnchor.constraint(equalToConstant: 25).isActive = true
imageView.topAnchor.constraint(equalTo: self.topAnchor, constant: 5).isActive = true
imageView.bottomAnchor.constraint(equalTo: self.bottomAnchor, constant: 5).isActive = true
}
internal func setText(_ text: String, andImage image: String){
infoLabel.text = text
imageView.image = UIImage(named: image)
}
}
and here is how I'm adding it to view -
let aView: CustomView = CustomView(frame: CGRect(x: 20, y: 144, width: 120, height: 31))
view.addSubview(aView)
aView.setText("my testing label", andImage: "distanceIcon")
aView.backgroundColor = UIColor.red
I get the result like added image.(red is my custom view, white is label and gray is image)
Edit: It is working if add view in Storyboard and but if I try via code as mentioned above it is not working.

Answer 1

You have to call translatesAutoresizingMaskIntoConstraints = false on CustomView class instance as well:
self.translatesAutoresizingMaskIntoConstraints = false
Also add leading and top constraints on custom view to set it's position:
customView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor, constant: 200).isActive = true
customView.topAnchor.constraint(equalTo: self.view.topAnchor, constant: 200).isActive = true
Don't forget to add trailing constraint on imageView:
imageView.trailingAnchor.constraint(equalTo: self.trailingAnchor, constant: -10).isActive = true