SwiftUIでアプリ起動時に画面を遷移させる
SwiftUIでアプリ起動時に画面を遷移させる方法です。
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| import SwiftUI | |
| struct ContentView: View { | |
| @State var viewType: ViewType = .launch | |
| var body: some View { | |
| ZStack { | |
| switch viewType { | |
| case .launch: | |
| Text("Launch") | |
| case .home: | |
| Text("Home") | |
| } | |
| } | |
| .onAppear { | |
| Task { | |
| try? await sleep() | |
| withAnimation(.linear(duration: 0.5)) { | |
| viewType = .home | |
| } | |
| } | |
| } | |
| } | |
| func sleep() async throws { | |
| // sleep 2sec | |
| _ = try await Task.sleep(nanoseconds: 2_000_000_000) | |
| } | |
| } | |
| #Preview { | |
| ContentView() | |
| } |