I want to make modal loading. about activityindicatorview HOT 6 CLOSED

import SwiftUI
import ActivityIndicatorView

struct ContentView: View {
    @State private var isVisible = false
    
    var body: some View {
        ZStack {
            VStack {
                Button {
                    self.isVisible.toggle()
                } label: {
                    Text("Modal On/Off")
                }
            }
            .padding()
            
            VStack {
                ZStack {
                    RoundedRectangle(cornerRadius: 20)
                        .fill(Color.white)
                        .frame(width: 100, height: 100)
                        
                    ActivityIndicatorView(isVisible: $isVisible, type: .default())
                        .frame(width: 50.0, height: 50.0)
                        .foregroundColor(Color.blue)
                }
            }
            .frame(maxWidth: .infinity, maxHeight: .infinity)
            .background(Color.gray.opacity(0.3))
            .ignoresSafeArea()  // need iOS 14.0 later
            .isHidden(!isVisible)
            .onTapGesture {
                self.isVisible.toggle()
            }
        }
    }
}

extension View {
    @ViewBuilder func isHidden(_ isHidden: Bool) -> some View {
        if isHidden {
            self.hidden()
        } else {
            self
        }
    }
}