SwiftUI Tinder Card Swipe

SwiftUI Tinder Card Swipe

ContentView.swift

//
//  ContentView.swift
//  SwiftUIProject
//
//  Created by Cairocoders
//

import SwiftUI

struct ContentView: View {
    
    @State var user: Userlist?
    
    var body: some View {
        VStack {
            ZStack {
                ForEach(users) { rs in
                    CardView(viewdata: rs)
                }
            }
        }
    }
}

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

CardView.swift

//
//  CardView.swift
//  SwiftUIProject
//
//  Created by Cairocoders
//

import SwiftUI

struct CardView: View {
    
    @State private var offset = CGSize.zero
    @State private var color: Color = .black

    @State var viewdata: Userlist
    
    var body: some View {
        ZStack {
            Rectangle()
                .frame(width: 325, height: 425)
                .border(.white, width: 6.0)
                .cornerRadius(4)
                .foregroundColor(color.opacity(0.9))
                .shadow(radius: 4)
            HStack {
                Image(viewdata.photo).resizable()
                    .frame(width: 320, height: 420)
            }
            
        }
        .offset(x: offset.width * 1, y: offset.height * 0.4)
        .rotationEffect(.degrees(Double(offset.width / 40)))
        .gesture(
            DragGesture()
                .onChanged { gesture in
                    offset = gesture.translation
                    withAnimation {
                        changeColor(width: offset.width)
                    }
                }
                .onEnded { _ in
                    withAnimation {
                        swipeCard(width: offset.width)
                        changeColor(width: offset.width)
                    }
                }
        )
    }
    
    func swipeCard(width: CGFloat) {
        switch width {
        case -500...(-150):
            print("\(viewdata.username) removed")
            offset = CGSize(width: -500, height: 0)
        case 150...500:
            print("\(viewdata.username) added")
            offset = CGSize(width: 500, height: 0)
        default:
            offset = .zero
        }
    }
    
    func changeColor(width: CGFloat) {
        switch width {
        case -500...(-130):
            color = .red
        case 130...500:
            color = .green
        default:
            color = .black
        }
    }
    
    
}

struct CardView_Previews: PreviewProvider {
    static var previews: some View {
        CardView(viewdata: Userlist(id: 1, username: "Cairocoders", photo: "1"))
    }
}

Model.swift

//
//  Model.swift
//  SwiftUIProject
//
//  Created by Cairocoders
//

import SwiftUI

struct Userlist: Identifiable {
 
    let id: Int
    let username: String
    let photo : String
}
 
var users = [
    Userlist(id: 0, username: "Olivia", photo: "1"),
    Userlist(id: 1, username: "Emma", photo: "2"),
    Userlist(id: 2, username: "Ava", photo: "3"),
    Userlist(id: 3, username: "Charlotte", photo: "4"),
    Userlist(id: 4, username: "Sophia", photo: "5"),
    Userlist(id: 5, username: "Amelia", photo: "6")
]