UIImageView Representable not resizing - swiftui

Question

I can't find a way to make a UIImageView wrapped in a UIViewRepresentable be sized to fit the frame. It always resizes beyond the screen no matter what content Mode or clipping or explcit framing I do. (The image dimensions are much larger than the device screen frame)
To clarify: I need to use UIImageView due to some subview positioning I have to do down the line and various other reasons.
Here's a paired down example:
struct ImageView: UIViewRepresentable {
var image: UIImage
func makeUIView(context: Context) -> some UIView {
let imageView = UIImageView()
imageView.image = image
imageView.backgroundColor = .red
imageView.contentMode = .scaleAspectFit
imageView.clipsToBounds = true
imageView.frame = CGRect(x: 0, y: 0, width: 300, height: 400)
return imageView
}
func updateUIView(_ uiView: UIViewType, context: Context) {
}
}
Then this is how I'm trying to implement it
struct ContentView: View {
var body: some View {
ImageView(image: UIImage(named: "full-ux-bg-image")!)
//.frame(width: 300, height: 400, alignment: .center) //This is just a test of explicit sizing
.padding()
}
}
Any ideas how to make this work? I want it to fit in the SwiftUI view without going over.

Answer 1

It has default constrains for content hugging/compression, to have possibility to manipulate with view externally we need to lowered those (... and never set frame for representable, just in case)
Here is fixed variant (tested with Xcode 14 / iOS 16)
func makeUIView(context: Context) -> some UIView {
let imageView = UIImageView()
imageView.image = image
imageView.backgroundColor = .red
imageView.contentMode = .scaleAspectFit
imageView.clipsToBounds = true
imageView.setContentHuggingPriority(.defaultLow, for: .vertical)
imageView.setContentHuggingPriority(.defaultLow, for: .horizontal)
imageView.setContentCompressionResistancePriority(.defaultLow, for: .vertical)
imageView.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
return imageView
}