| name | common | difference |
|---|---|---|
| @StateObject | 1) the variable comforms to ObservableObject 2) get reset when app relaunch | 1) will exists even if the view using the @StateObject gets destructed. |
| @EnvironmentObject | 1) the variable comforms to ObservableObject 2) get reset when app relaunch | 1) global |
| @ObservedObject | 1) the variable comforms to ObservableObject 2) get reset when app relaunch | 1) will not exists when the view using @ObservedObject gets destructed. |
| @SceneStorage | ||
| @AppStorage | 1) wrap UserDefaults | 1) will not reset when app relaunch 2) reset when app reinstall |