The behavior of the Button in ScrollView differs depending on how the View is displayed modally.
When the View is displayed as a .fullScreenCover, if the button is touched and scrolled without releasing the finger, the touch event is canceled and the action of the Button is not called.
On the other hand, if the View is displayed as a .sheet, the touch event is not canceled even if the view is scrolled without lifting the finger, and the action is called when the finger is released.
In order to prevent accidental interaction, I feel that the behavior of .fullScreenCover is better, as it cancels the event immediately when scrolling. Can I change the behavior of .sheet?
Demo movie is here:
https://x.com/kenmaz/status/1896498312737611891
Sample code
import SwiftUI
@main
struct SampleApp: App {
var body: some Scene {
WindowGroup {
ContentView()
}
}
}
struct ContentView: View {
@State private var showSheet = false
@State private var showFullScreen = false
var body: some View {
VStack(spacing: 16) {
Button("Sheet") {
showSheet.toggle()
}
Button("Full screen") {
showFullScreen.toggle()
}
}
.sheet(isPresented: $showSheet) {
SecondView()
}
.fullScreenCover(isPresented: $showFullScreen) {
SecondView()
}
.font(.title)
}
}
struct SecondView: View {
@Environment(\.dismiss) var dismiss
var body: some View {
ScrollView {
Button("Dismiss") {
dismiss()
}
.buttonStyle(MyButtonStyle())
.padding(.top, 128)
.font(.title)
}
}
}
private struct MyButtonStyle: ButtonStyle {
func makeBody(configuration: Self.Configuration) -> some View {
configuration
.label
.foregroundStyle(.red)
.background(configuration.isPressed ? .gray : .clear)
}
}
