Lottie AnimationView for SwiftUI

ContentView.swift

import Lottie
import SwiftUI

struct ContentView: View {
    var body: some View {
        ZStack {
            GeometryReader { reader in
                LottieAnimationView(.named("drinks"))
                    .animationSpeed(0.5)
                    .frame(maxWidth: reader.size.width, maxHeight: reader.size.height)
            }
        }
    }
}

LottieAnimationView.swift

import Lottie
import SwiftUI

struct LottieAnimationView: UIViewRepresentable {
    private let animation: Lottie.Animation?
    private var animationSpeed: CGFloat = 1
    private var backgroundBehavior: Lottie.LottieBackgroundBehavior = .pauseAndRestore
    private var contentMode: UIView.ContentMode = .scaleAspectFit
    private var loopMode: Lottie.LottieLoopMode = .loop
    
    init(_ animation: Lottie.Animation?) {
        self.animation = animation
    }
    
    func makeUIView(context: Context) -> AnimationView {
        AnimationView()
    }
    
    func updateUIView(_ view: AnimationView, context: Context) {
        view.animation = animation
        view.animationSpeed = animationSpeed
        view.backgroundBehavior = backgroundBehavior
        view.contentMode = contentMode
        view.loopMode = loopMode
        view.play()
    }
    
    func backgroundBehavior(_ behavior: Lottie.LottieBackgroundBehavior) -> Self {
        var view = self
        view.backgroundBehavior = behavior
        
        return view
    }
    
    func animationSpeed(_ speed: CGFloat) -> Self {
        var view = self
        view.animationSpeed = speed
        
        return view
    }
    
    func contentMode(_ mode: UIView.ContentMode) -> Self {
        var view = self
        view.contentMode = mode
        
        return view
    }
    
    func loopMode(_ mode: Lottie.LottieLoopMode) -> Self {
        var view = self
        view.loopMode = mode
        
        return view
    }
}