fix animator crash

* remove showSettings

* pass dismiss action trough navigation links

* move auth to all sheets

apps/ios/Shared/ContentView.swift

@@ -29,12 +29,12 @@ struct ContentView: View {
     @AppStorage(DEFAULT_PERFORM_LA) private var prefPerformLA = false
     @AppStorage(DEFAULT_PRIVACY_PROTECT_SCREEN) private var protectScreen = false
     @AppStorage(DEFAULT_NOTIFICATION_ALERT_SHOWN) private var notificationAlertShown = false
-    @State private var showSettings = false
     @State private var showWhatsNew = false
     @State private var showChooseLAMode = false
     @State private var showSetPasscode = false
     @State private var waitingForOrPassedAuth = true
     @State private var chatListActionSheet: ChatListActionSheet? = nil
+    @State private var chatListUserPickerSheet: UserPickerSheet? = nil
 
     private let callTopPadding: CGFloat = 40
 
@@ -86,7 +86,7 @@ struct ContentView: View {
                 callView(call)
             }
 
-            if !showSettings, let la = chatModel.laRequest {
+            if chatListUserPickerSheet == nil, let la = chatModel.laRequest {
                 LocalAuthView(authRequest: la)
                     .onDisappear {
                         // this flag is separate from accessAuthenticated to show initializationView while we wait for authentication
@@ -109,9 +109,6 @@ struct ContentView: View {
             }
         }
         .alert(isPresented: $alertManager.presentAlert) { alertManager.alertView! }
-        .sheet(isPresented: $showSettings) {
-            SettingsView(showSettings: $showSettings)
-        }
         .confirmationDialog("SimpleX Lock mode", isPresented: $showChooseLAMode, titleVisibility: .visible) {
             Button("System authentication") { initialEnableLA() }
             Button("Passcode entry") { showSetPasscode = true }
@@ -253,7 +250,7 @@ struct ContentView: View {
 
     private func mainView() -> some View {
         ZStack(alignment: .top) {
-            ChatListView(showSettings: $showSettings).privacySensitive(protectScreen)
+            ChatListView(activeUserPickerSheet: $chatListUserPickerSheet).privacySensitive(protectScreen)
             .onAppear {
                 requestNtfAuthorization()
                 // Local Authentication notice is to be shown on next start after onboarding is complete

apps/ios/Shared/Views/ChatList/ChatHelp.swift

@@ -10,7 +10,7 @@ import SwiftUI
 
 struct ChatHelp: View {
     @EnvironmentObject var chatModel: ChatModel
-    @Binding var showSettings: Bool
+    let dismissSettingsSheet: DismissAction
 
     var body: some View {
         ScrollView { chatHelp() }
@@ -23,7 +23,7 @@ struct ChatHelp: View {
             VStack(alignment: .leading, spacing: 0) {
                 Text("To ask any questions and to receive updates:")
                 Button("connect to SimpleX Chat developers.") {
-                    showSettings = false
+                    dismissSettingsSheet()
                     DispatchQueue.main.async {
                         UIApplication.shared.open(simplexTeamURL)
                     }
@@ -61,8 +61,9 @@ struct ChatHelp: View {
 }
 
 struct ChatHelp_Previews: PreviewProvider {
+    @Environment(\.dismiss) static var mockDismiss
+
     static var previews: some View {
-        @State var showSettings = false
-        return ChatHelp(showSettings: $showSettings)
+        ChatHelp(dismissSettingsSheet: mockDismiss)
     }
 }

apps/ios/Shared/Views/ChatList/ChatListView.swift

@@ -18,19 +18,77 @@ enum UserPickerSheet: Identifiable {
     case settings
 
     var id: Self { self }
+
+    var navigationTitle: LocalizedStringKey {
+        switch self {
+        case .address: "SimpleX address"
+        case .chatPreferences: "Your preferences"
+        case .chatProfiles: "Your chat profiles"
+        case .currentProfile: "Your current profile"
+        case .useFromDesktop: "Connect to desktop"
+        case .settings: "Your settings"
+        }
+    }
+}
+
+struct UserPickerSheetView: View {
+    let sheet: UserPickerSheet
+    @EnvironmentObject var chatModel: ChatModel
+    @State private var loaded = false
+
+    var body: some View {
+        NavigationView {
+            ZStack {
+                if loaded, let currentUser = chatModel.currentUser {
+                    switch sheet {
+                    case .address:
+                        UserAddressView(shareViaProfile: currentUser.addressShared)
+                    case .chatPreferences:
+                        PreferencesView(
+                            profile: currentUser.profile,
+                            preferences: currentUser.fullPreferences,
+                            currentPreferences: currentUser.fullPreferences
+                        )
+                    case .chatProfiles:
+                        UserProfilesView()
+                    case .currentProfile:
+                        UserProfile()
+                    case .useFromDesktop:
+                        ConnectDesktopView()
+                    case .settings:
+                        SettingsView()
+                    }
+                }
+                Color.clear // Required for list background to be rendered during loading
+            }
+            .navigationTitle(sheet.navigationTitle)
+            .navigationBarTitleDisplayMode(.large)
+            .modifier(ThemedBackground(grouped: true))
+        }
+        .overlay {
+            if let la = chatModel.laRequest {
+                LocalAuthView(authRequest: la)
+            }
+        }
+        .task {
+            withAnimation(
+                .easeOut(duration: 0.1),
+                { loaded = true }
+            )
+        }
+    }
 }
 
 struct ChatListView: View {
     @EnvironmentObject var chatModel: ChatModel
     @EnvironmentObject var theme: AppTheme
-    @Binding var showSettings: Bool
+    @Binding var activeUserPickerSheet: UserPickerSheet?
     @State private var searchMode = false
     @FocusState private var searchFocussed
     @State private var searchText = ""
     @State private var searchShowingSimplexLink = false
     @State private var searchChatFilteredBySimplexLink: String? = nil
     @State private var scrollToSearchBar = false
-    @State private var activeUserPickerSheet: UserPickerSheet? = nil
     @State private var userPickerShown: Bool = false
 
     @AppStorage(DEFAULT_SHOW_UNREAD_AND_FAVORITES) private var showUnreadAndFavorites = false
@@ -58,43 +116,20 @@ struct ChatListView: View {
                 destination: chatView
             ) { chatListView }
         }
-        .sheet(isPresented: $userPickerShown) {
-            UserPicker(activeSheet: $activeUserPickerSheet)
-                .sheet(item: $activeUserPickerSheet) { sheet in
-                    if let currentUser = chatModel.currentUser {
-                        switch sheet {
-                        case .address:
-                            NavigationView {
-                                UserAddressView(shareViaProfile: currentUser.addressShared)
-                                    .navigationTitle("SimpleX address")
-                                    .navigationBarTitleDisplayMode(.large)
-                                    .modifier(ThemedBackground(grouped: true))
-                            }
-                        case .chatProfiles:
-                            NavigationView {
-                                UserProfilesView()
-                            }
-                        case .currentProfile:
-                            NavigationView {
-                                UserProfile()
-                                    .navigationTitle("Your current profile")
-                                    .modifier(ThemedBackground(grouped: true))
-                            }
-                        case .chatPreferences:
-                            NavigationView {
-                                PreferencesView(profile: currentUser.profile, preferences: currentUser.fullPreferences, currentPreferences: currentUser.fullPreferences)
-                                    .navigationTitle("Your preferences")
-                                    .navigationBarTitleDisplayMode(.large)
-                                    .modifier(ThemedBackground(grouped: true))
-                            }
-                        case .useFromDesktop:
-                            ConnectDesktopView(viaSettings: false)
-                        case .settings:
-                            SettingsView(showSettings: $showSettings)
-                                .navigationBarTitleDisplayMode(.large)
-                        }
-                    }
+        .modifier(
+            Sheet(isPresented: $userPickerShown) {
+                UserPicker(userPickerShown: $userPickerShown, activeSheet: $activeUserPickerSheet)
+            }
+        )
+        .sheet(item: $activeUserPickerSheet) {
+            UserPickerSheetView(sheet: $0)
+        }
+        .onChange(of: activeUserPickerSheet) {
+            if $0 != nil {
+                DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
+                    userPickerShown = false
                 }
+            }
         }
     }
 
@@ -544,6 +579,8 @@ func chatStoppedIcon() -> some View {
 }
 
 struct ChatListView_Previews: PreviewProvider {
+    @State static var userPickerSheet: UserPickerSheet? = .none
+
     static var previews: some View {
         let chatModel = ChatModel()
         chatModel.updateChats([
@@ -562,9 +599,9 @@ struct ChatListView_Previews: PreviewProvider {
 
         ])
         return Group {
-            ChatListView(showSettings: Binding.constant(false))
+            ChatListView(activeUserPickerSheet: $userPickerSheet)
                 .environmentObject(chatModel)
-            ChatListView(showSettings: Binding.constant(false))
+            ChatListView(activeUserPickerSheet: $userPickerSheet)
                 .environmentObject(ChatModel())
         }
     }

apps/ios/Shared/Views/ChatList/UserPicker.swift

@@ -12,42 +12,30 @@ struct UserPicker: View {
     @Environment(\.dynamicTypeSize) private var userFont: DynamicTypeSize
     @Environment(\.scenePhase) private var scenePhase: ScenePhase
     @Environment(\.colorScheme) private var colorScheme: ColorScheme
-    @Environment(\.dismiss) private var dismiss: DismissAction
+    @Binding var userPickerShown: Bool
     @Binding var activeSheet: UserPickerSheet?
     @State private var currentUser: Int64?
     @State private var switchingProfile = false
     @State private var frameWidth: CGFloat = 0
+    @State private var resetScroll = ResetScrollAction()
 
     // Inset grouped list dimensions
     private let imageSize: CGFloat = 44
     private let rowPadding: CGFloat = 16
+    private let rowVerticalPadding: CGFloat = 11
     private let sectionSpacing: CGFloat = 35
     private var sectionHorizontalPadding: CGFloat { frameWidth > 375 ? 20 : 16 }
     private let sectionShape = RoundedRectangle(cornerRadius: 10, style: .continuous)
 
     var body: some View {
-        if #available(iOS 16.0, *) {
-            let v = viewBody.presentationDetents([.height(400)])
-            if #available(iOS 16.4, *) {
-                v.scrollBounceBehavior(.basedOnSize)
-            } else {
-                v
-            }
-        } else {
-            viewBody
-        }
-    }
-
-    @ViewBuilder
-    private var viewBody: some View {
         let otherUsers: [UserInfo] = m.users
             .filter { u in !u.user.hidden && u.user.userId != m.currentUser?.userId }
             .sorted(using: KeyPathComparator<UserInfo>(\.user.activeOrder, order: .reverse))
         let sectionWidth = max(frameWidth - sectionHorizontalPadding * 2, 0)
         let currentUserWidth = max(frameWidth - sectionHorizontalPadding - rowPadding * 2 - 14 - imageSize, 0)
-        VStack(spacing: 0) {
+        VStack(spacing: sectionSpacing) {
             if let user = m.currentUser {
-                StickyScrollView {
+                StickyScrollView(resetScroll: $resetScroll) {
                     HStack(spacing: rowPadding) {
                         HStack {
                             ProfileImage(imageStr: user.image, size: imageSize, color: Color(uiColor: .tertiarySystemGroupedBackground))
@@ -56,9 +44,8 @@ struct UserPicker: View {
                         }
                         .padding(rowPadding)
                         .frame(width: otherUsers.isEmpty ? sectionWidth : currentUserWidth, alignment: .leading)
-                        .background(Color(.secondarySystemGroupedBackground))
+                        .modifier(ListRow { activeSheet = .currentProfile })
                         .clipShape(sectionShape)
-                        .onTapGesture { activeSheet = .currentProfile }
                         ForEach(otherUsers) { u in
                             userView(u, size: imageSize)
                                 .frame(maxWidth: sectionWidth * 0.618)
@@ -72,20 +59,21 @@ struct UserPicker: View {
                 .overlay(DetermineWidth())
                 .onPreferenceChange(DetermineWidth.Key.self) { frameWidth = $0 }
             }
-            List {
-                Section {
-                    openSheetOnTap("qrcode", title: m.userAddress == nil ? "Create SimpleX address" : "Your SimpleX address", sheet: .address)
-                    openSheetOnTap("switch.2", title: "Chat preferences", sheet: .chatPreferences)
-                    openSheetOnTap("person.crop.rectangle.stack", title: "Your chat profiles", sheet: .chatProfiles)
-                    openSheetOnTap("desktopcomputer", title: "Use from desktop", sheet: .useFromDesktop)
-
-                    ZStack(alignment: .trailing) {
-                        openSheetOnTap("gearshape", title: "Settings", sheet: .settings)
-                        Image(systemName: colorScheme == .light ? "sun.max" : "moon.fill")
+            VStack(spacing: 0) {
+                openSheetOnTap("qrcode", title: m.userAddress == nil ? "Create SimpleX address" : "Your SimpleX address", sheet: .address)
+                openSheetOnTap("switch.2", title: "Chat preferences", sheet: .chatPreferences)
+                openSheetOnTap("person.crop.rectangle.stack", title: "Your chat profiles", sheet: .chatProfiles)
+                openSheetOnTap("desktopcomputer", title: "Use from desktop", sheet: .useFromDesktop)
+                ZStack(alignment: .trailing) {
+                    openSheetOnTap("gearshape", title: "Settings", sheet: .settings, showDivider: false)
+                    Image(systemName: colorScheme == .light ? "sun.max" : "moon.fill")
                         .resizable()
+                        .scaledToFit()
                         .symbolRenderingMode(.monochrome)
                         .foregroundColor(theme.colors.secondary)
-                        .frame(maxWidth: 20, maxHeight: 20)
+                        .frame(maxWidth: 20, maxHeight: .infinity)
+                        .padding(.horizontal, rowPadding)
+                        .background(Color(.systemBackground).opacity(0.01))
                         .onTapGesture {
                             if (colorScheme == .light) {
                                 ThemeManager.applyTheme(systemDarkThemeDefault.get())
@@ -96,9 +84,11 @@ struct UserPicker: View {
                         .onLongPressGesture {
                             ThemeManager.applyTheme(DefaultTheme.SYSTEM_THEME_NAME)
                         }
-                    }
                 }
             }
+            .clipShape(sectionShape)
+            .padding(.horizontal, sectionHorizontalPadding)
+            .padding(.bottom, sectionSpacing)
         }
         .onAppear {
             // This check prevents the call of listUsers after the app is suspended, and the database is closed.
@@ -117,6 +107,9 @@ struct UserPicker: View {
                 }
             }
         }
+        .onChange(of: userPickerShown) {
+            if !$0 { resetScroll() }
+        }
         .modifier(ThemedBackground(grouped: true))
         .disabled(switchingProfile)
     }
@@ -133,15 +126,15 @@ struct UserPicker: View {
             Text(u.user.displayName).font(.title2).lineLimit(1)
         }
         .padding(rowPadding)
-        .background(Color(.secondarySystemGroupedBackground))
-        .clipShape(sectionShape)
-        .onTapGesture {
+        .modifier(ListRow {
             switchingProfile = true
-            dismiss()
             Task {
                 do {
                     try await changeActiveUserAsync_(u.user.userId, viewPwd: nil)
-                    await MainActor.run { switchingProfile = false }
+                    await MainActor.run {
+                        switchingProfile = false
+                        userPickerShown = false
+                    }
                 } catch {
                     await MainActor.run {
                         switchingProfile = false
@@ -152,19 +145,23 @@ struct UserPicker: View {
                     }
                 }
             }
-        }
+        })
+        .clipShape(sectionShape)
     }
-    
-    private func openSheetOnTap(_ icon: String, title: LocalizedStringKey, sheet: UserPickerSheet) -> some View {
-        Button {
-            activeSheet = sheet
-        } label: {
+
+    private func openSheetOnTap(_ icon: String, title: LocalizedStringKey, sheet: UserPickerSheet, showDivider: Bool = true) -> some View {
+        ZStack(alignment: .bottom) {
             settingsRow(icon, color: theme.colors.secondary) {
                 Text(title).foregroundColor(.primary)
             }
+            .frame(maxWidth: .infinity, alignment: .leading)
+            .padding(.horizontal, rowPadding)
+            .padding(.vertical, rowVerticalPadding)
+            .modifier(ListRow { activeSheet = sheet })
+            if showDivider {
+                Divider().padding(.leading, 52)
+            }
         }
-        .frame(maxWidth: .infinity, alignment: .leading)
-        .contentShape(Rectangle())
     }
     
     private func unreadBadge(_ u: UserInfo) -> some View {
@@ -179,6 +176,92 @@ struct UserPicker: View {
     }
 }
 
+struct ListRow: ViewModifier {
+    @Environment(\.colorScheme) private var colorScheme: ColorScheme
+    @State private var touchDown = false
+    let action: () -> Void
+
+    func body(content: Content) -> some View {
+        ZStack {
+            elevatedSecondarySystemGroupedBackground
+            Color(.systemGray4).opacity(touchDown ? 1 : 0)
+            content
+            TouchOverlay(touchDown: $touchDown, action: action)
+        }
+    }
+
+    var elevatedSecondarySystemGroupedBackground: Color {
+        switch colorScheme {
+        case .dark: Color(0xFF2C2C2E)
+        default:    Color(0xFFFFFFFF)
+        }
+    }
+
+    struct TouchOverlay: UIViewRepresentable {
+        @Binding var touchDown: Bool
+        let action: () -> Void
+
+        func makeUIView(context: Context) -> TouchView {
+            let touchView = TouchView()
+            let gesture = UILongPressGestureRecognizer(
+                target: touchView,
+                action: #selector(touchView.longPress(gesture:))
+            )
+            gesture.delegate = touchView
+            gesture.minimumPressDuration = 0
+            touchView.addGestureRecognizer(gesture)
+            return touchView
+        }
+
+        func updateUIView(_ touchView: TouchView, context: Context) {
+            touchView.representer = self
+        }
+
+        class TouchView: UIView, UIGestureRecognizerDelegate {
+            var representer: TouchOverlay?
+            private var startLocation: CGPoint?
+            private var task: Task<Void, Never>?
+
+            @objc
+            func longPress(gesture: UILongPressGestureRecognizer) {
+                switch gesture.state {
+                case .began:
+                    startLocation = gesture.location(in: nil)
+                    task = Task {
+                        do {
+                            try await Task.sleep(nanoseconds: 200_000000)
+                            await MainActor.run { representer?.touchDown = true }
+                        } catch { }
+                    }
+                case .ended:
+                    if hitTest(gesture.location(in: self), with: nil) == self {
+                        representer?.action()
+                    }
+                    task?.cancel()
+                    representer?.touchDown = false
+                case .changed:
+                    if let startLocation {
+                        let location = gesture.location(in: nil)
+                        let dx = location.x - startLocation.x
+                        let dy = location.y - startLocation.y
+                        if sqrt(pow(dx, 2) + pow(dy, 2)) > 10 { gesture.state = .failed }
+                    }
+                case .cancelled, .failed:
+                    task?.cancel()
+                    representer?.touchDown = false
+                default: break
+                }
+            }
+
+            func gestureRecognizer(
+                _: UIGestureRecognizer,
+                shouldRecognizeSimultaneouslyWith: UIGestureRecognizer
+            ) -> Bool { true }
+        }
+    }
+}
+
+
 struct UserPicker_Previews: PreviewProvider {
     static var previews: some View {
         @State var activeSheet: UserPickerSheet?
@@ -186,6 +269,7 @@ struct UserPicker_Previews: PreviewProvider {
         let m = ChatModel()
         m.users = [UserInfo.sampleData, UserInfo.sampleData]
         return UserPicker(
+            userPickerShown: .constant(true),
             activeSheet: $activeSheet
         )
         .environmentObject(m)

apps/ios/Shared/Views/Database/DatabaseView.swift

@@ -44,7 +44,7 @@ enum DatabaseAlert: Identifiable {
 struct DatabaseView: View {
     @EnvironmentObject var m: ChatModel
     @EnvironmentObject var theme: AppTheme
-    @Binding var showSettings: Bool
+    let dismissSettingsSheet: DismissAction
     @State private var runChat = false
     @State private var alert: DatabaseAlert? = nil
     @State private var showFileImporter = false
@@ -439,7 +439,7 @@ struct DatabaseView: View {
 
     private func startChat() {
         if m.chatDbChanged {
-            showSettings = false
+            dismissSettingsSheet()
             DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
                 resetChatCtrl()
                 do {
@@ -533,7 +533,9 @@ func deleteChatAsync() async throws {
 }
 
 struct DatabaseView_Previews: PreviewProvider {
+    @Environment(\.dismiss) static var mockDismiss
+
     static var previews: some View {
-        DatabaseView(showSettings: Binding.constant(false), chatItemTTL: .none)
+        DatabaseView(dismissSettingsSheet: mockDismiss, chatItemTTL: .none)
     }
 }

apps/ios/Shared/Views/Helpers/SheetRepresentable.swift

@@ -0,0 +1,188 @@
+//
+//  SwiftUISheet.swift
+//  SimpleX (iOS)
+//
+//  Created by user on 23/09/2024.
+//  Copyright © 2024 SimpleX Chat. All rights reserved.
+//
+
+import SwiftUI
+
+private let sheetAnimationDuration: Double = 0.35
+
+// Refrence: https://easings.net/
+private let easeOutCubic = UICubicTimingParameters(
+    controlPoint1: CGPoint(x: 0.215, y: 0.61),
+    controlPoint2: CGPoint(x: 0.355, y: 1)
+)
+
+struct Sheet<SheetContent: View>: ViewModifier {
+    @Binding var isPresented: Bool
+    @ViewBuilder let sheetContent: () -> SheetContent
+
+    func body(content: Content) -> some View {
+        ZStack {
+            content
+            SheetRepresentable(isPresented: $isPresented, content: sheetContent())
+                .allowsHitTesting(isPresented)
+                .ignoresSafeArea()
+        }
+    }
+}
+
+struct SheetRepresentable<Content: View>: UIViewControllerRepresentable {
+    @Binding var isPresented: Bool
+    let content:  Content
+
+    func makeUIViewController(context: Context) -> Controller<Content> {
+        Controller(content: content, representer: self)
+    }
+
+    func updateUIViewController(_ sheetController: Controller<Content>, context: Context) {
+        sheetController.animate(isPresented: isPresented)
+    }
+
+    class Controller<C: View>: UIViewController {
+        let hostingController: UIHostingController<C>
+        private let animator = UIViewPropertyAnimator(
+            duration: sheetAnimationDuration,
+            timingParameters: easeOutCubic
+        )
+        private let representer: SheetRepresentable<C>
+        private var retainedFraction: CGFloat = 0
+        private var sheetHeight: Double { hostingController.view.frame.height }
+        private var task: Task<Void, Never>?
+
+        init(content: C, representer: SheetRepresentable<C>) {
+            self.representer = representer
+            self.hostingController = UIHostingController(rootView: content)
+            super.init(nibName: nil, bundle: nil)
+        }
+
+        @available(*, unavailable)
+        required init?(coder: NSCoder) { fatalError("init(coder:) missing") }
+
+        deinit {
+            animator.stopAnimation(true)
+            animator.finishAnimation(at: .current)
+        }
+
+        func animate(isPresented: Bool) {
+            let alreadyAnimating = animator.isRunning && isPresented != animator.isReversed
+            let sheetFullyDismissed = animator.fractionComplete == (animator.isReversed ? 1 : 0)
+            let sheetFullyPresented = animator.fractionComplete == (animator.isReversed ? 0 : 1)
+
+            if !isPresented && sheetFullyDismissed ||
+                isPresented && sheetFullyPresented ||
+                alreadyAnimating {
+                return
+            }
+
+            animator.pauseAnimation()
+            animator.isReversed = !isPresented
+            animator.continueAnimation(
+                withTimingParameters: isPresented
+                ? easeOutCubic
+                : UICubicTimingParameters(animationCurve: .easeIn),
+                durationFactor: 1 - animator.fractionComplete
+            )
+            handleVisibility()
+        }
+
+        func handleVisibility() {
+            if animator.isReversed {
+                task = Task {
+                    do {
+                        let sleepDuration = UInt64(sheetAnimationDuration * Double(NSEC_PER_SEC))
+                        try await Task.sleep(nanoseconds: sleepDuration)
+                        view.isHidden = true
+                    } catch { }
+                }
+            } else {
+                task?.cancel()
+                task = nil
+                view.isHidden = false
+            }
+        }
+
+        override func viewDidLoad() {
+            view.isHidden = true
+            view.backgroundColor = .clear
+            view.addGestureRecognizer(
+                UITapGestureRecognizer(target: self, action: #selector(tap(gesture:)))
+            )
+            addChild(hostingController)
+            hostingController.didMove(toParent: self)
+            if let sheet = hostingController.view {
+                sheet.isHidden = true
+                sheet.clipsToBounds = true
+                sheet.layer.cornerRadius = 10
+                sheet.layer.maskedCorners = [.layerMaxXMinYCorner, .layerMinXMinYCorner]
+                sheet.addGestureRecognizer(UIPanGestureRecognizer(target: self, action: #selector(pan(gesture:))))
+                sheet.translatesAutoresizingMaskIntoConstraints = false
+                view.addSubview(sheet)
+                NSLayoutConstraint.activate([
+                    hostingController.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
+                    hostingController.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
+                    hostingController.view.bottomAnchor.constraint(equalTo: view.bottomAnchor),
+                ])
+            }
+        }
+
+        override func viewDidAppear(_ animated: Bool) {
+            // Ensures animations are only setup once
+            // on some iOS version `viewDidAppear` can get called on each state change.
+            if hostingController.view.isHidden {
+                hostingController.view.transform = CGAffineTransform(translationX: 0, y: self.sheetHeight)
+                hostingController.view.isHidden = false
+                animator.pausesOnCompletion = true
+                animator.addAnimations {
+                    self.hostingController.view.transform = .identity
+                    self.view.backgroundColor = UIColor {
+                        switch $0.userInterfaceStyle {
+                        case .dark: .black.withAlphaComponent(0.290)
+                        default:    .black.withAlphaComponent(0.121)
+                        }
+                    }
+                }
+                animator.startAnimation()
+                animator.pauseAnimation()
+            }
+        }
+
+        @objc
+        func pan(gesture: UIPanGestureRecognizer) {
+            switch gesture.state {
+            case .began:
+                animator.isReversed = false
+                animator.pauseAnimation()
+                retainedFraction = animator.fractionComplete
+            case .changed:
+                animator.fractionComplete = retainedFraction - gesture.translation(in: view).y / sheetHeight
+            case .ended, .cancelled:
+                let velocity = gesture.velocity(in: view).y
+                animator.isReversed = (velocity - (animator.fractionComplete - 0.5) * 100).sign == .plus
+                let defaultVelocity = sheetHeight / sheetAnimationDuration
+                let fractionRemaining = 1 - animator.fractionComplete
+                let durationFactor = min(max(fractionRemaining / (abs(velocity) / defaultVelocity), 0.5), 1)
+                animator.continueAnimation(withTimingParameters: nil, durationFactor: durationFactor * fractionRemaining)
+                handleVisibility()
+                DispatchQueue.main.asyncAfter(deadline: .now() + sheetAnimationDuration) {
+                    self.representer.isPresented = !self.animator.isReversed
+                }
+            default: break
+            }
+        }
+
+        @objc
+        func tap(gesture: UITapGestureRecognizer) {
+            switch gesture.state {
+            case .ended:
+                if gesture.location(in: view).y < view.frame.height - sheetHeight {
+                    representer.isPresented = false
+                }
+            default: break
+            }
+        }
+    }
+}

apps/ios/Shared/Views/Helpers/StickyScrollView.swift

@@ -9,6 +9,7 @@
 import SwiftUI
 
 struct StickyScrollView<Content: View>: UIViewRepresentable {
+    @Binding var resetScroll: ResetScrollAction
     @ViewBuilder let content: () -> Content
 
     func makeUIView(context: Context) -> UIScrollView {
@@ -18,6 +19,9 @@ struct StickyScrollView<Content: View>: UIViewRepresentable {
         sv.showsHorizontalScrollIndicator = false
         sv.addSubview(hc.view)
         sv.delegate = context.coordinator
+        DispatchQueue.main.async {
+            resetScroll = ResetScrollAction { sv.setContentOffset(.zero, animated: false) }
+        }
         return sv
     }
 
@@ -50,3 +54,8 @@ struct StickyScrollView<Content: View>: UIViewRepresentable {
         }
     }
 }
+
+struct ResetScrollAction {
+    var action = { }
+    func callAsFunction() { action() }
+}

apps/ios/Shared/Views/NewChat/NewChatView.swift

@@ -241,7 +241,6 @@ private struct InviteView: View {
     @Binding var choosingProfile: Bool
 
     @AppStorage(GROUP_DEFAULT_INCOGNITO, store: groupDefaults) private var incognitoDefault = false
-    @State private var showSettings: Bool = false
 
     var body: some View {
         List {
@@ -693,6 +692,7 @@ struct ScannerInView: View {
                             .frame(maxWidth: .infinity, maxHeight: .infinity)
                             .foregroundColor(Color.clear)
                         switch cameraAuthorizationStatus {
+                        case .authorized, nil: EmptyView()
                         case .restricted: Text("Camera not available")
                         case .denied:  Label("Enable camera access", systemImage: "camera")
                         default: Label("Tap to scan", systemImage: "qrcode")
@@ -712,21 +712,26 @@ struct ScannerInView: View {
                 .disabled(cameraAuthorizationStatus == .restricted)
             }
         }
-        .onAppear {
+        .task {
             let status = AVCaptureDevice.authorizationStatus(for: .video)
             cameraAuthorizationStatus = status
             if showQRCodeScanner {
                 switch status {
-                case .notDetermined: askCameraAuthorization()
+                case .notDetermined: await askCameraAuthorizationAsync()
                 case .restricted: showQRCodeScanner = false
                 case .denied: showQRCodeScanner = false
                 case .authorized: ()
-                @unknown default: askCameraAuthorization()
+                @unknown default: await askCameraAuthorizationAsync()
                 }
             }
         }
     }
 
+    func askCameraAuthorizationAsync() async {
+        await AVCaptureDevice.requestAccess(for: .video)
+        cameraAuthorizationStatus = AVCaptureDevice.authorizationStatus(for: .video)
+    }
+
     func askCameraAuthorization(_ cb: (() -> Void)? = nil) {
         AVCaptureDevice.requestAccess(for: .video) { allowed in
             cameraAuthorizationStatus = AVCaptureDevice.authorizationStatus(for: .video)

apps/ios/Shared/Views/NewChat/QRCode.swift

@@ -49,34 +49,34 @@ struct QRCode: View {
         ZStack {
             if let image = image {
                 qrCodeImage(image)
-            }
-            GeometryReader { geo in
-                ZStack {
-                    if withLogo {
-                        let w = geo.size.width
-                        Image("icon-light")
-                        .resizable()
-                        .scaledToFit()
-                        .frame(width: w * 0.16, height: w * 0.16)
-                        .frame(width: w * 0.165, height: w * 0.165)
-                        .background(.white)
-                        .clipShape(Circle())
+                GeometryReader { geo in
+                    ZStack {
+                        if withLogo {
+                            let w = geo.size.width
+                            Image("icon-light")
+                            .resizable()
+                            .scaledToFit()
+                            .frame(width: w * 0.16, height: w * 0.16)
+                            .frame(width: w * 0.165, height: w * 0.165)
+                            .background(.white)
+                            .clipShape(Circle())
+                        }
                     }
-                }
-                .onAppear {
-                    makeScreenshotFunc = {
-                        let size = CGSizeMake(1024 / UIScreen.main.scale, 1024 / UIScreen.main.scale)
-                        showShareSheet(items: [makeScreenshot(geo.frame(in: .local).origin, size)])
-                        onShare?()
+                    .onAppear {
+                        makeScreenshotFunc = {
+                            let size = CGSizeMake(1024 / UIScreen.main.scale, 1024 / UIScreen.main.scale)
+                            showShareSheet(items: [makeScreenshot(geo.frame(in: .local).origin, size)])
+                            onShare?()
+                        }
                     }
+                    .frame(width: geo.size.width, height: geo.size.height)
                 }
-                .frame(width: geo.size.width, height: geo.size.height)
+            } else {
+                Color.clear.aspectRatio(1, contentMode: .fit)
             }
         }
         .onTapGesture(perform: makeScreenshotFunc)
-        .onAppear {
-            image = image ?? generateImage(uri, tintColor: tintColor)
-        }
+        .task { image = await generateImage(uri, tintColor: tintColor) }
         .frame(maxWidth: .infinity, maxHeight: .infinity)
     }
 }
@@ -89,7 +89,7 @@ private func qrCodeImage(_ image: UIImage) -> some View {
         .textSelection(.enabled)
 }
 
-private func generateImage(_ uri: String, tintColor: UIColor) -> UIImage? {
+private func generateImage(_ uri: String, tintColor: UIColor) async -> UIImage? {
     let context = CIContext()
     let filter = CIFilter.qrCodeGenerator()
     filter.message = Data(uri.utf8)

apps/ios/Shared/Views/RemoteAccess/ConnectDesktopView.swift

@@ -14,7 +14,6 @@ struct ConnectDesktopView: View {
     @EnvironmentObject var m: ChatModel
     @EnvironmentObject var theme: AppTheme
     @Environment(\.dismiss) var dismiss: DismissAction
-    var viaSettings = false
     @AppStorage(DEFAULT_DEVICE_NAME_FOR_REMOTE_ACCESS) private var deviceName = UIDevice.current.name
     @AppStorage(DEFAULT_CONFIRM_REMOTE_SESSIONS) private var confirmRemoteSessions = false
     @AppStorage(DEFAULT_CONNECT_REMOTE_VIA_MULTICAST) private var connectRemoteViaMulticast = true
@@ -57,16 +56,6 @@ struct ConnectDesktopView: View {
     }
 
     var body: some View {
-        if viaSettings {
-            viewBody
-        } else {
-            NavigationView {
-                viewBody
-            }
-        }
-    }
-
-    var viewBody: some View {
         Group {
             let discovery = m.remoteCtrlSession?.discovery
             if discovery == true || (discovery == nil && !showConnectScreen) {

apps/ios/Shared/Views/UserSettings/SettingsView.swift

@@ -257,23 +257,18 @@ let networkProxyDefault: CodableDefault<NetworkProxy> = CodableDefault(defaults:
 
 struct SettingsView: View {
     @Environment(\.colorScheme) var colorScheme
+    @Environment(\.dismiss) var dismiss
     @EnvironmentObject var chatModel: ChatModel
     @EnvironmentObject var sceneDelegate: SceneDelegate
     @EnvironmentObject var theme: AppTheme
-    @Binding var showSettings: Bool
     @State private var showProgress: Bool = false
 
     var body: some View {
         ZStack {
-            NavigationView {
-                settingsView()
-            }
+            settingsView()
             if showProgress {
                 progressView()
             }
-            if let la = chatModel.laRequest {
-                LocalAuthView(authRequest: la)
-            }
         }
     }
 
@@ -347,7 +342,7 @@ struct SettingsView: View {
                 Section(header: Text("Help").foregroundColor(theme.colors.secondary)) {
                     if let user = user {
                         NavigationLink {
-                            ChatHelp(showSettings: $showSettings)
+                            ChatHelp(dismissSettingsSheet: dismiss)
                                 .navigationTitle("Welcome \(user.displayName)!")
                                 .modifier(ThemedBackground())
                                 .frame(maxHeight: .infinity, alignment: .top)
@@ -372,7 +367,7 @@ struct SettingsView: View {
                     }
                     settingsRow("number", color: theme.colors.secondary) {
                         Button("Send questions and ideas") {
-                            showSettings = false
+                            dismiss()
                             DispatchQueue.main.async {
                                 UIApplication.shared.open(simplexTeamURL)
                             }
@@ -429,7 +424,7 @@ struct SettingsView: View {
     
     private func chatDatabaseRow() -> some View {
         NavigationLink {
-            DatabaseView(showSettings: $showSettings, chatItemTTL: chatModel.chatItemTTL)
+            DatabaseView(dismissSettingsSheet: dismiss, chatItemTTL: chatModel.chatItemTTL)
                 .navigationTitle("Your chat database")
                 .modifier(ThemedBackground(grouped: true))
         } label: {
@@ -525,9 +520,7 @@ struct SettingsView_Previews: PreviewProvider {
     static var previews: some View {
         let chatModel = ChatModel()
         chatModel.currentUser = User.sampleData
-        @State var showSettings = false
-
-        return SettingsView(showSettings: $showSettings)
+        return SettingsView()
             .environmentObject(chatModel)
     }
 }

apps/ios/SimpleX.xcodeproj/project.pbxproj

@@ -211,6 +211,7 @@
 		CEE723F02C3D25C70009AE93 /* ShareView.swift in Sources */ = {isa = PBXBuildFile; fileRef = CEE723EF2C3D25C70009AE93 /* ShareView.swift */; };
 		CEE723F22C3D25ED0009AE93 /* ShareModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = CEE723F12C3D25ED0009AE93 /* ShareModel.swift */; };
 		CEEA861D2C2ABCB50084E1EA /* ReverseList.swift in Sources */ = {isa = PBXBuildFile; fileRef = CEEA861C2C2ABCB50084E1EA /* ReverseList.swift */; };
+		CEFB2EDF2CA1BCC7004B1ECE /* SheetRepresentable.swift in Sources */ = {isa = PBXBuildFile; fileRef = CEFB2EDE2CA1BCC7004B1ECE /* SheetRepresentable.swift */; };
 		D7197A1829AE89660055C05A /* WebRTC in Frameworks */ = {isa = PBXBuildFile; productRef = D7197A1729AE89660055C05A /* WebRTC */; };
 		D72A9088294BD7A70047C86D /* NativeTextEditor.swift in Sources */ = {isa = PBXBuildFile; fileRef = D72A9087294BD7A70047C86D /* NativeTextEditor.swift */; };
 		D741547829AF89AF0022400A /* StoreKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D741547729AF89AF0022400A /* StoreKit.framework */; };
@@ -553,6 +554,7 @@
 		CEE723EF2C3D25C70009AE93 /* ShareView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareView.swift; sourceTree = "<group>"; };
 		CEE723F12C3D25ED0009AE93 /* ShareModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareModel.swift; sourceTree = "<group>"; };
 		CEEA861C2C2ABCB50084E1EA /* ReverseList.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ReverseList.swift; sourceTree = "<group>"; };
+		CEFB2EDE2CA1BCC7004B1ECE /* SheetRepresentable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SheetRepresentable.swift; sourceTree = "<group>"; };
 		D72A9087294BD7A70047C86D /* NativeTextEditor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NativeTextEditor.swift; sourceTree = "<group>"; };
 		D741547729AF89AF0022400A /* StoreKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = StoreKit.framework; path = Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS16.1.sdk/System/Library/Frameworks/StoreKit.framework; sourceTree = DEVELOPER_DIR; };
 		D741547929AF90B00022400A /* PushKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = PushKit.framework; path = Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS16.1.sdk/System/Library/Frameworks/PushKit.framework; sourceTree = DEVELOPER_DIR; };
@@ -799,6 +801,7 @@
 				CE7548092C622630009579B7 /* SwipeLabel.swift */,
 				CE176F1F2C87014C00145DBC /* InvertedForegroundStyle.swift */,
 				CEDB245A2C9CD71800FBC5F6 /* StickyScrollView.swift */,
+				CEFB2EDE2CA1BCC7004B1ECE /* SheetRepresentable.swift */,
 			);
 			path = Helpers;
 			sourceTree = "<group>";
@@ -1449,6 +1452,7 @@
 				5CB634B129E5EFEA0066AD6B /* PasscodeView.swift in Sources */,
 				8C69FE7D2B8C7D2700267E38 /* AppSettings.swift in Sources */,
 				5C2E260F27A30FDC00F70299 /* ChatView.swift in Sources */,
+				CEFB2EDF2CA1BCC7004B1ECE /* SheetRepresentable.swift in Sources */,
 				5C2E260B27A30CFA00F70299 /* ChatListView.swift in Sources */,
 				6442E0BA287F169300CEC0F9 /* AddGroupView.swift in Sources */,
 				5CF937232B2503D000E1D781 /* NSESubscriber.swift in Sources */,