How to display an alert in SwiftUI.
It is written quite differently from UIAlertController.
The @State of the Property Wrapper is still unfamiliar.
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| import SwiftUI | |
| struct ContentView: View { | |
| @State var showingAlert = false | |
| var body: some View { | |
| Button(action: { | |
| self.showingAlert = true | |
| }, label: { | |
| Text("Push Me!") | |
| }).alert(isPresented: self.$showingAlert) { | |
| Alert( | |
| title: Text("タイトル"), | |
| message: Text("メッセージ"), | |
| primaryButton: .default(Text("ボタンその１")) { | |
| print("ボタンその１") | |
| }, secondaryButton: .destructive(Text("ボタンその２")) { | |
| print("ボタンその２") | |
| }) | |
| } | |
| } | |
| } | |
| struct ContentView_Previews: PreviewProvider { | |
| static var previews: some View { | |
| ContentView() | |
| } | |
| } |