Use LottieFiles in your SwiftUI app with this UIView wrapper

LottieUIView.swift

//  Chris Betz
//  Betz Software
//
//  Source: https://www.youtube.com/watch?v=fVehE3Jf7K0
//  Important: If you get EXC_BAD_INSTRUCTION you need to set DEAD_CODE_STRIPPING = NO in your app's target. More info: 
//  https://stackoverflow.com/questions/58757949/swift-ui-lottie-thread-1-exc-bad-instruction-code-exc-i386-invop-subcode-0x/58762913#58762913
// 
//  Check out FlightMaster for an example app: https://apps.apple.com/us/app/flight-master/id1495056152

import SwiftUI
import Lottie

struct LottieUIView: UIViewRepresentable {
    let animationView = AnimationView()
    var filename = "mountain"
    
    func makeUIView(context: UIViewRepresentableContext<LottieUIView>) -> UIView {
        let view = UIView()
        
        let animation = Animation.named(filename)
        animationView.animation = animation
        animationView.contentMode = .scaleAspectFit
        animationView.loopMode = .loop
        animationView.play()
        
        animationView.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(animationView)
        
        NSLayoutConstraint.activate([
            animationView.heightAnchor.constraint(equalTo: view.heightAnchor),
            animationView.widthAnchor.constraint(equalTo: view.widthAnchor),
        ])
        
        return view
    }
    
    func updateUIView(_ uiView: UIView, context: UIViewRepresentableContext<LottieUIView>) {
        
    }
    
}