SwiftUI dismiss modal sheet presented from NavigationView (Xcode Beta 5)

Question

I am attempting to dismiss a modal view presented via a .sheet in SwiftUI - called by a Button which is within a NavigationViews nav

Answer 1

You need to move the .sheet outside the Button.

NavigationView {
  Text("test")
  .navigationBarTitle(Text("Navigation Title Text"))
  .navigationBarItems(trailing:
     Button("Add") {
       self.showModal = true
     }
  )
  .sheet(isPresented: $showModal, content: { ModalView() })
}

You can even move it outside the NavigationView closure.

NavigationView {
  Text("test")
  .navigationBarTitle(Text("Navigation Title Text"))
  .navigationBarItems(trailing:
     Button("Add") { self.showModal = true }
  )
}
.sheet(isPresented: $showModal, content: { ModalView() })

Notice you can also simplify the Button call if you have a simple text button.