iOS SwiftUI: pop or dismiss view programmatically

This example uses the new environment var documented in the Beta 5 Release Notes, which was using a value property. It was changed in a later beta to use a wrappedValue property. This example is now current for the GM version. This exact same concept works to dismiss Modal views presented with the .sheet modifier.

import SwiftUI

struct DetailView: View {
    @Environment(\.presentationMode) var presentationMode: Binding<PresentationMode>
    var body: some View {
        Button(
            "Here is Detail View. Tap to go back.",
            action: { self.presentationMode.wrappedValue.dismiss() }
        )
    }
}

struct RootView: View {
    var body: some View {
        VStack {
            NavigationLink(destination: DetailView())
            { Text("I am Root. Tap for Detail View.") }
        }
    }
}

struct ContentView: View {
    var body: some View {
        NavigationView {
            RootView()
        }
    }
}

SwiftUI Xcode Beta 5

First, declare the @Environment which has a dismiss method which you can use anywhere to dismiss the view.

import SwiftUI

struct GameView: View {
    
    @Environment(\.presentationMode) var presentation
    
    var body: some View {
        Button("Done") {
            self.presentation.wrappedValue.dismiss()
        }
    }
}

iOS 15

Starting from iOS 15 we can use a new @Environment(\.dismiss):

struct SheetView: View {
    @Environment(\.dismiss) var dismiss

    var body: some View {
        NavigationView {
            Text("Sheet")
                .toolbar {
                    Button("Done") {
                        dismiss()
                    }
                }
        }
    }
}

(There's no more need to use presentationMode.wrappedValue.dismiss().)

Useful links:

• DismissAction