SwiftUI AsyncImage that fits its image into a frame

ResizableAsyncImage.swift

import SwiftUI

/// AsyncImage that fits its image into a frame, shows spinner while loading, and an error if it occurs
struct ResizableAsyncImage: View {
    let url: URL?
    let imageContentMode: ContentMode
    let maxWidth: CGFloat?
    let maxHeight: CGFloat?

    var body: some View {
        AsyncImage(url: url) { phase in
            switch phase {
            case .empty:
                ProgressView()
            case .success(let image):
                image
                    .resizable()
                    .aspectRatio(contentMode: imageContentMode)
            case .failure (let error):
                Image(systemName: "exclamationmark.circle")
                    .foregroundColor(.red)
                Text(error.localizedDescription)
            @unknown default:
                Text("Well that was unexpected!")
            }
        }
        .frame(maxWidth: maxWidth, maxHeight: maxHeight)
        .clipped()
    }
}

extension ResizableAsyncImage {
    init(
        url: URL?,
        contentMode: ContentMode = .fit,
        maxWidth: CGFloat? = nil,
        maxHeight: CGFloat? = nil
    ) {
        self.init(
            url: url,
            imageContentMode: contentMode,
            maxWidth: maxWidth,
            maxHeight: maxHeight
        )
    }
}

struct ResizableAsyncImage_Previews: PreviewProvider {
    static var previews: some View {
        ResizableAsyncImage(
            url:  URL(string: "https://upload.wikimedia.org/wikipedia/en/2/25/LetItBe.jpg"),
            maxWidth: 200,
            maxHeight: 100
        )
    }
}