Customisable SwiftUI Refresh spinner

Add onAppear to your List and place

  .onAppear {
                        UIRefreshControl.appearance().tintColor = .green
                        UIRefreshControl.appearance().attributedTitle = NSAttributedString("Refreshing…")
                    }

I want to add my approach, is a very unorthodox one and I'm not saying is "the" solution, just something to discuss, hopefully it helps someone to "test" and find a better angle.

• Also I only tested this on iOS15, not working on iOS16

1. Make your content inside a list which will give you the .refreshable modifier and will allow pull to refresh: SWIFTUI refreshable (Pull to refresh) is not working at ScrollView

2. Make a singleton of your UIView (this is highly unusual, but for this case may work)

    class SingletonView: UIView { 
    // Singleton instance
        static let shared : UIView = 
    SingletonView.sharedInstance(size: CGSize(width: 20, height: 20))
   
        // You can modify argument list as per your need.
        class private func sharedInstance(size : CGSize)->UIView {
            //Putting the view in the middle, but the details falls on you.
            let view = UIView(frame: CGRect(x: (UIScreen.main.bounds.width / 2) - 10, y: 0, width: size.width, height: size.height))
      //just so you can see something
        view.backgroundColor = .red
            return view
        }
   }
   

3. Finally add this singleton view to your refresh controller and hide the original:

    .onAppear{
   //Hide the default refresh controller, attach our uiView
        //Because is a singleton it wont be added several times
        //You can always expand your singleton to be hidden, animated, removed, etc.
   UIRefreshControl.appearance().tintColor = .clear
   
   
   UIRefreshControl.appearance().addSubview(SingletonView.shared)
   
    }
   

Gist: https://gist.github.com/Wilsonilo/309600c62c9e27385dfa5296e696b668