SwiftUIでAppDelegateを使用する
SwiftUIでAppDelegateを使用する方法です。アプリ終了時にUserDefaultsに値を保存しています。
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| import SwiftUI | |
| struct ContentView: View { | |
| @State var pokemon = "" | |
| var body: some View { | |
| VStack { | |
| Text("Pokemon Name is \(pokemon)") | |
| Button { | |
| UserDefaults().setValue("Pikachu", forKey: "POKEMON") | |
| getPokemon() | |
| } label: { | |
| Text("Set Pikachu") | |
| } | |
| Button { | |
| UserDefaults().setValue("Ditto", forKey: "POKEMON") | |
| getPokemon() | |
| } label: { | |
| Text("Set Ditto") | |
| } | |
| Button { | |
| UserDefaults().setValue("Slowpoke", forKey: "POKEMON") | |
| getPokemon() | |
| } label: { | |
| Text("Set Slowpoke") | |
| } | |
| } | |
| .onAppear { | |
| getPokemon() | |
| } | |
| } | |
| func getPokemon() { | |
| if let pokemon = UserDefaults().value(forKey: "POKEMON") as? String { | |
| self.pokemon = pokemon | |
| } | |
| } | |
| } |