How to present a modal view in SwiftUI

Use the .sheet modifier to show a modal in Swift UI.

You can present the built-in modal animation on top of your current view by using a single modifier, the .sheet modifier.

Define you state

First, define your local state at the top your View:

@State var showModal = false

..

Create a button 

When the user taps on a button, we want to show the SignInView modal.

Button(action: {
	showModal = true
	}) {
		Text("Sign in")
	}

..

Call the .sheet modifier

Then, call the .sheet modifier. The SignInView will show every time showModal is true - that is, every time the user taps on the Sign in button.

.sheet(isPresented: $showModal, content: {
		SignInView()
})

..

To present a modal view in SwiftUI, you can use the sheet modifier. The sheet modifier is used to present a view as a modal sheet over the current view. Here's an example of how to use it:

struct ContentView: View {
    @State private var showModal = false
    
    var body: some View {
        Button("Show Modal") {
            showModal = true
        }
        .sheet(isPresented: $showModal) {
            ModalView()
        }
    }
}

struct ModalView: View {
    @Environment(\.presentationMode) var presentationMode
    
    var body: some View {
        VStack {
            Text("This is a modal view!")
            Button("Dismiss") {
                presentationMode.wrappedValue.dismiss()
            }
        }
        .padding()
    }
}

In this example, the ContentView has a button that toggles the showModal boolean when tapped. The sheet modifier is used on the button to present the ModalView as a modal when showModal is true.

The ModalView has a presentationMode environment variable, which is used to dismiss the modal when the "Dismiss" button is tapped. The presentationMode variable gives access to the current presentation mode and allows you to dismiss the current modal view.

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