iOS WidgetKit: remote images fails to load

Yes, as mentioned by Konstantin, it is not supported to load images asynchronously. There are 2 options to load network image in widgets

1. Either fetch all the images in TimelineProvider and inject them to the views directly.

   OR

2. Use Data(contentsOf: url) to fetch the image. This way it still fetches them synchronously but the code is cleaner. Sample code -

   struct NetworkImage: View {
   
     private let url: URL?
   
     var body: some View {
   
       Group {
        if let url = url, let imageData = try? Data(contentsOf: url), 
          let uiImage = UIImage(data: imageData) {
   
          Image(uiImage: uiImage)
            .resizable()
            .aspectRatio(contentMode: .fill)
         } 
         else {
          Image("placeholder-image")
         }
       }
     }
   
   }
   

This view can simply be use like this -

NetworkImage(url: url)

Got it: it's simply not supported and you aim to load images inside TimelineProvider:

https://developer.apple.com/forums/thread/652581