Watchkit

ContentView.swift

import SwiftUI
import AVFoundation

var player: AVAudioPlayer? = nil

struct ContentView: View {

    func play(_ name: String){
        guard
            let url = Bundle.main.url(forResource: name, withExtension: "wav"),
            let _ = try? AVAudioSession.sharedInstance().setCategory(.playback, mode: .default, options: []),
            let _ = try? AVAudioSession.sharedInstance().setActive(true),
            let aPlayer = try? AVAudioPlayer(contentsOf: url)
            else { return }
        player = aPlayer
        player?.play()
    }
    var body: some View {
        VStack {
            HStack {
                Button(action: { self.play("honk") }) {
                    Image("honk").resizable().renderingMode(.original)
                }.contentShape(RoundedRectangle(cornerRadius: 8))
                
                Button(action: { self.play("win") }) {
                    Image("win").resizable().renderingMode(.original)
                }.contentShape(RoundedRectangle(cornerRadius: 8))
            }
            HStack {
                Button(action: { self.play("oof") }) {
                    Image("oof").resizable().renderingMode(.original)
                }.contentShape(RoundedRectangle(cornerRadius: 8))
                Button(action: { self.play("ff") }) {
                    Image("ff").resizable()
                }.contentShape(RoundedRectangle(cornerRadius: 8))
            }
        }.aspectRatio(contentMode: .fit)
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}