View+onLoad

View+onLoad.swift

import SwiftUI

private struct OnLoad: ViewModifier {
    let action: () -> Void
    @State private var loaded = false

    func body(content: Content) -> some View {
        content.onAppear {
            if !loaded {
                loaded = true
                action()
            }
        }
    }
}

extension View {
    func onLoad(perform action: @escaping () -> Void) -> some View {
        modifier(OnLoad(action: action))
    }
}