swiftswiftuionappear

OnAppear only once the view is opened

I want to update the view with data when a view is opened so I added:

.onAppear {
    loadData()
}

But I only want to update it once when the view gets opened not every time it gets reopened e.g. with a back button.

--> Only update on App start

Solution 
  • struct ContentView: View {
    @State private var firstTime = true
    var body: some View {
        VStack {
        
        }
        .onAppear(){
            if firstTime {
                // this is the first time app did start
                loadData()
                firstTime = false
            }
        }
    }
}