onappear excuse only first time

[aplha98]

I was having this, to run some code only on the first time , not after details screen popped

public extension View {
    func onFirstAppear(_ action: @escaping () -> Void) -> some View {
        modifier(FirstAppear(action: action))
    }
}

private struct FirstAppear: ViewModifier {
    let action: () -> Void
    
    // Use this to only fire your block one time
    @State private var hasAppeared = false
    
    func body(content: Content) -> some View {
        // And then, track it here
        content.onAppear {
            guard !hasAppeared else { return }
            hasAppeared = true
            action()
        }
    }
}