import SwiftUI

struct ContentView: View {
    @State private var progress: Double = 0.5

    var body: some View {
        VStack {
            ProgressView(value: progress)
                .padding()
            Button("Increase Progress") {
                if progress < 1.0 {
                    progress += 0.1
                }
            }
            .padding()
        }
    }
}