progress loader

progressLoader.txt

//
//  ProgressNew.swift
//  Test2
//
//  Created by Alexander Kraev on 14.09.2023.
//

import SwiftUI

struct ProgressNew: View {
    
    var progress: CGFloat
    @State var animate = false

    var body: some View {
        VStack(spacing: 40.0) {
            Button("Start") {
                animate.toggle()
            }
            
            loader
                .frame(width: 100, height: 10)
        }
    }
    
    var loader: some View {
        GeometryReader { geometry in
            ZStack(alignment: .leading) {
                Rectangle()
                    .foregroundColor(Color.white.opacity(0.3))
                    .cornerRadius(5)
                    .frame(width: geometry.size.width, height: geometry.size.height, alignment: .leading)
                
                Rectangle()
                    .foregroundColor(Color.white.opacity(0.9))
                    .cornerRadius(5)
                    .frame(width: geometry.size.width * self.progress, height: geometry.size.height, alignment: .leading)
                    .padding(.leading, animate ? geometry.size.width : -geometry.size.width * self.progress)
                    .animation(.linear(duration: 2.0).repeatForever(autoreverses: false), value: animate)
                    
            }
            .frame(width: geometry.size.width, height: geometry.size.height, alignment: .leading)
            .clipped()
        }
    }
}

struct ProgressNew_PreviewProvider: PreviewProvider {
    static var previews: some View {
        ProgressNew(progress: 0.3)
            .preferredColorScheme(.dark)
    }
}