How to make modal non-dismissible in SwiftUI - user-interface

Question

I’m creating an app where I have create first screen (it will be short description of application) and on the screen I have a next Button if I click on next button it should be dismiss otherwise it must not be dismiss either pull down.
If user pull down a sheet, it should be again re-position.
The problem is, that the user can dismiss the modal by swiping it down and application dashboard screen show that should be prevented.
How can we prevent to dismiss the Model by pull down.
struct ModalView : View {
#Environment(\.presentationMode) var presentationMode
var body: some View {
Rectangle()
.fill(Color.orange)
.frame(width: 400, height: 650)
.overlay(
VStack{
Button(action: {
self.presentationMode.wrappedValue.dismiss()
}) {
HStack {
Image(systemName: "chevron.left")
Text("Dismiss")
}.padding(10.0)
.overlay(
RoundedRectangle(cornerRadius: 10.0)
.stroke(lineWidth: 2.0)
)
}.accentColor(.white)
})
.border(Color.blue)
.gesture( DragGesture())
}
}
ContentView
struct ContentView: View {
//MARK: Properties
//isPresented:- Present's a Welcome Screen in the form of cards.
#State private var isPresented = true
var body: some View {
VStack{
DashboardView()
.sheet(isPresented: $isPresented){
//IntroductionView(isPresentingSheet: self.$isPresented)
ModalView()
}
}
}
}
DashboardView
struct DashboardView: View {
var body: some View {
Text("Hello SwiftUI")
}
}

Answer 1

You can try this solution:
struct ModalWrapper: View {
var body: some View {
ModalView().highPriorityGesture(DragGesture())
}
}
struct ModalView : View {
#Environment(\.presentationMode) var presentationMode
var body: some View {
Rectangle()
.fill(Color.orange)
.frame(width: 400, height: 650)
.overlay(
VStack{
Button(action: {
self.presentationMode.wrappedValue.dismiss()
}) {
HStack {
Image(systemName: "chevron.left")
Text("Dismiss")
}.padding(10.0)
.overlay(
RoundedRectangle(cornerRadius: 10.0)
.stroke(lineWidth: 2.0)
)
}.accentColor(.white)
})
.border(Color.blue)
.highPriorityGesture(DragGesture())
}
}
struct ContentView: View {
//MARK: Properties
//isPresented:- Present's a Welcome Screen in the form of cards.
#State private var isPresented = true
var body: some View {
VStack{
DashboardView()
.sheet(isPresented: $isPresented){
//IntroductionView(isPresentingSheet: self.$isPresented)
ModalWrapper()
}
}
}
}
struct DashboardView: View {
var body: some View {
Text("Hello SwiftUI")
}
}
Here I have added ModalWrapper for wrap the modal view Or else you will have to add highPriorityGesture(DragGesture()) to all subviews of the ModalView So it is better to keep one wrapper view.
Hope this will help you.