isPresented
A Boolean value that indicates whether the view associated with this environment is currently presented.
Declaration
var isPresented: Bool { get }Discussion
You can read this value like any of the other EnvironmentValues by creating a property with the Environment property wrapper:
@Environment(\.isPresented) private var isPresentedRead the value inside a view if you need to know when SwiftUI presents that view. For example, you can take an action when SwiftUI presents a view by using the onChange(of:initial:_:) modifier:
.onChange(of: isPresented) { _, isPresented in
if isPresented {
// Do something when first presented.
}
}This behaves differently than onAppear(perform:), which SwiftUI can call more than once for a given presentation, like when you navigate back to a view that’s already in the navigation hierarchy.
To dismiss the currently presented view, use dismiss.