[#185] TodoDetailView에서 내비게이션타이틀의 라지 사이즈만큼 영역을 먹고 있는 현상을 해결한다

DevLog/UI/Common/NavigationBarConfigurator.swift

@@ -0,0 +1,74 @@
+//
+//  NavigationBarConfigurator.swift
+//  DevLog
+//
+//  Created by 최윤진 on 3/5/26.
+//
+
+import SwiftUI
+
+struct NavigationBarConfigurator: UIViewControllerRepresentable {
+    private let backgroundColor: UIColor
+
+    init(_ backgroundColor: UIColor = .systemBackground) {
+        self.backgroundColor = backgroundColor
+    }
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator()
+    }
+
+    func makeUIViewController(context: Context) -> UIViewController {
+        UIViewController()
+    }
+
+    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {
+        if #available(iOS 26, *) { return }
+        DispatchQueue.main.async {
+            guard let navigationBar = uiViewController.navigationController?.navigationBar else { return }
+            let coordinator = context.coordinator
+            if coordinator.originalShadowColor == nil {
+                coordinator.originalShadowColor = navigationBar.standardAppearance.shadowColor
+                coordinator.originalBackgroundColor = navigationBar.standardAppearance.backgroundColor
+            }
+            Self.applyAppearance(
+                to: navigationBar,
+                shadowColor: .clear,
+                backgroundColor: self.backgroundColor
+            )
+        }
+    }
+
+    static func dismantleUIViewController(_ uiViewController: UIViewController, coordinator: Coordinator) {
+        if #available(iOS 26, *) { return }
+        guard let navigationBar = uiViewController.navigationController?.navigationBar else { return }
+        applyAppearance(
+            to: navigationBar,
+            shadowColor: coordinator.originalShadowColor,
+            backgroundColor: coordinator.originalBackgroundColor
+        )
+    }
+
+    private static func applyAppearance(
+        to navigationBar: UINavigationBar,
+        shadowColor: UIColor?,
+        backgroundColor: UIColor?
+    ) {
+        let appearances = [
+            navigationBar.standardAppearance,
+            navigationBar.scrollEdgeAppearance,
+            navigationBar.compactAppearance,
+            navigationBar.compactScrollEdgeAppearance
+        ]
+
+        for appearance in appearances {
+            appearance?.shadowColor = shadowColor
+            appearance?.backgroundColor = backgroundColor
+        }
+    }
+
+    class Coordinator {
+        var originalShadowColor: UIColor?
+        var originalBackgroundColor: UIColor?
+    }
+}

DevLog/UI/Extension/View+.swift

@@ -7,6 +7,90 @@
 
 import SwiftUI
 
+extension View {
+    @ViewBuilder
+    func onScrollOffsetChange(action: @escaping (CGFloat) -> Void) -> some View {
+        if #available(iOS 18, *) {
+            self.onScrollGeometryChange(for: CGFloat.self) { geo in
+                geo.contentOffset.y + geo.contentInsets.top
+            } action: { _, newOffset in
+                action(newOffset)
+            }
+        } else {
+            self.background(ScrollViewOffsetTracker(onChange: action))
+        }
+    }
+}
+
+private struct ScrollViewOffsetTracker: UIViewRepresentable {
+    var onChange: (CGFloat) -> Void
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(onChange: onChange)
+    }
+
+    func makeUIView(context: Context) -> UIView {
+        let view = UIView()
+        view.isHidden = true
+        view.isUserInteractionEnabled = false
+        DispatchQueue.main.async {
+            guard let scrollView = Self.findScrollView(from: view) else { return }
+            context.coordinator.observe(scrollView)
+        }
+        return view
+    }
+
+    func updateUIView(_ uiView: UIView, context: Context) {}
+
+    private static func findScrollView(from view: UIView) -> UIScrollView? {
+        var current = view.superview
+        while let superview = current {
+            if let scrollView = superview as? UIScrollView {
+                return scrollView
+            }
+            for sibling in superview.subviews where sibling !== view {
+                if let scrollView = findScrollViewInSubviews(of: sibling) {
+                    return scrollView
+                }
+            }
+            current = superview.superview
+        }
+        return nil
+    }
+
+    private static func findScrollViewInSubviews(of view: UIView) -> UIScrollView? {
+        if let scrollView = view as? UIScrollView {
+            return scrollView
+        }
+        for subview in view.subviews {
+            if let scrollView = findScrollViewInSubviews(of: subview) {
+                return scrollView
+            }
+        }
+        return nil
+    }
+
+    class Coordinator: NSObject {
+        private var onChange: (CGFloat) -> Void
+        private var observation: NSKeyValueObservation?
+
+        init(onChange: @escaping (CGFloat) -> Void) {
+            self.onChange = onChange
+        }
+
+        func observe(_ scrollView: UIScrollView) {
+            observation = scrollView.observe(\.contentOffset, options: [.new]) { [weak self] scrollView, _ in
+                let offset = scrollView.contentOffset.y + scrollView.adjustedContentInset.top
+                self?.onChange(offset)
+            }
+        }
+
+        deinit {
+            observation?.invalidate()
+        }
+    }
+}
+
 extension View {
     @ViewBuilder
     func adaptiveButtonStyle(

DevLog/UI/Home/TodoDetailView.swift

@@ -23,6 +23,7 @@ struct TodoDetailView: View {
             }
         }
         .onAppear { viewModel.send(.onAppear) }
+        .navigationBarTitleDisplayMode(.inline)
         .sheet(isPresented: Binding(
             get: { viewModel.state.showInfo },
             set: { viewModel.send(.setShowInfo($0)) }

DevLog/UI/Home/TodoListView.swift

@@ -12,6 +12,8 @@ struct TodoListView: View {
     @Environment(NavigationRouter.self) var router
     @Environment(\.diContainer) var container: DIContainer
     @Environment(\.colorScheme) private var colorScheme
+    @State private var headerOffset: CGFloat = 0
+    @State private var isScrollTrackingEnabled = false
 
     var body: some View {
         Group {
@@ -106,14 +108,14 @@ struct TodoListView: View {
                 }
             }
         }
-        .toolbarBackground(.visible, for: .navigationBar)
+        .background(NavigationBarConfigurator())
         .task { viewModel.send(.onAppear) }
     }
 
     private var todoListContent: some View {
         ZStack {
             List {
-                Section {
+                Group {
                     if viewModel.state.todos.isEmpty, !viewModel.state.isLoading {
                         HStack {
                             Spacer()
@@ -123,14 +125,23 @@ struct TodoListView: View {
                         }
                         .listRowSeparator(.hidden)
                     } else {
-                        ForEach(viewModel.state.todos) { todo in
+                        let todos = viewModel.state.todos
+                        ForEach(Array(zip(todos.indices, todos)), id: \.1.id) { idx, todo in
                             Button {
                                 router.push(Path.detail(todo.id))
                             } label: {
                                 TodoItemRow(todo)
                             }
                             .listRowInsets(EdgeInsets(top: 0, leading: 16, bottom: 0, trailing: 16))
                             .alignmentGuide(.listRowSeparatorLeading) { _ in return 0 }
+                            .overlay(alignment: .top) {
+                                if #available(iOS 26.0, *) {
+                                    if idx == 0 {
+                                        Divider()
+                                            .padding(.horizontal, -16)
+                                    }
+                                }
+                            }
                             .onAppear {
                                 let lastID = viewModel.state.todos.last?.id
                                 if todo.id == lastID, viewModel.state.hasMore {
@@ -160,12 +171,32 @@ struct TodoListView: View {
                             }
                         }
                     }
-                } header: {
-                    headerView
                 }
                 .listRowBackground(Color.clear)
+                .listSectionSeparator(.hidden, edges: .top)
             }
             .listStyle(.plain)
+            .onScrollOffsetChange { offset in
+                guard isScrollTrackingEnabled else { return }
+                headerOffset = max(0, -offset)
+            }
+            .safeAreaInset(edge: .top) {
+                VStack(spacing: 4) {
+                    headerView
+                    if #unavailable(iOS 26) {
+                        Divider()
+                            .padding(.horizontal, -16)
+                    }
+                }
+                .background {
+                    if #available(iOS 26.0, *) {
+                        Color.clear
+                    } else {
+                        Color(.systemBackground)
+                    }
+                }
+                .offset(y: headerOffset)
+            }
             .refreshable { viewModel.send(.refresh) }
             .scrollDisabled(viewModel.state.todos.isEmpty || viewModel.state.isLoading)
 
@@ -266,6 +297,16 @@ struct TodoListView: View {
             }
         }
         .scrollIndicators(.never)
+        .scrollDisabled(!isScrollTrackingEnabled)
+        .contentMargins(.leading, 16, for: .scrollContent)
+        .frame(height: 36)
+        .onAppear {
+            headerOffset = 0
+            isScrollTrackingEnabled = false
+            DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
+                isScrollTrackingEnabled = true
+            }
+        }
     }
 
     private var sortMenu: some View {

DevLog/UI/PushNotification/PushNotificationListView.swift

@@ -13,11 +13,13 @@ struct PushNotificationListView: View {
     @Environment(\.sceneWidth) private var sceneWidth
     @Environment(\.colorScheme) private var colorScheme
     @Environment(\.diContainer) private var container: DIContainer
+    @State private var headerOffset: CGFloat = 0
+    @State private var isScrollTrackingEnabled = false
 
     var body: some View {
         NavigationStack(path: $router.path) {
             List {
-                Section {
+                Group {
                     if viewModel.state.notifications.isEmpty {
                         HStack {
                             Spacer()
@@ -27,11 +29,13 @@ struct PushNotificationListView: View {
                         }
                         .listRowSeparator(.hidden)
                     } else {
-                        ForEach(viewModel.state.notifications, id: \.id) { notification in
+                        let notifications = viewModel.state.notifications
+                        ForEach(Array(zip(notifications.indices, notifications)), id: \.1.id) { idx, notification in
                             Button {
                                 viewModel.send(.tapNotification(notification))
                             } label: {
                                 notificationRow(notification)
+                                    .padding(.vertical, 8)
                             }
                             .buttonStyle(.plain)
                             .onAppear {
@@ -40,14 +44,45 @@ struct PushNotificationListView: View {
                                     viewModel.send(.loadNextPage)
                                 }
                             }
+                            .listRowInsets(EdgeInsets(top: 0, leading: 16, bottom: 0, trailing: 16))
+                            .overlay(alignment: .top) {
+                                if #available(iOS 26.0, *) {
+                                    if idx == 0 {
+                                        Divider()
+                                            .padding(.horizontal, -16)
+                                    }
+                                }
+                            }
                         }
                     }
-                } header: {
-                    headerView
                 }
+                .listSectionSeparator(.hidden, edges: .top)
                 .listRowBackground(Color.clear)
             }
             .listStyle(.plain)
+            .background(NavigationBarConfigurator(.secondarySystemBackground))
+            .onScrollOffsetChange { offset in
+                guard isScrollTrackingEnabled else { return }
+                headerOffset = max(0, -offset)
+            }
+            .safeAreaInset(edge: .top) {
+                VStack(spacing: 4) {
+                    headerView
+                        .clipped()
+                    if #unavailable(iOS 26) {
+                        Divider()
+                            .padding(.horizontal, -16)
+                    }
+                }
+                .background {
+                    if #available(iOS 26.0, *) {
+                        Color.clear
+                    } else {
+                        Color(.secondarySystemBackground)
+                    }
+                }
+                .offset(y: headerOffset)
+            }
             .background(Color(.secondarySystemBackground))
             .onAppear { viewModel.send(.fetchNotifications) }
             .refreshable { viewModel.send(.fetchNotifications) }
@@ -167,8 +202,18 @@ struct PushNotificationListView: View {
                         .adaptiveButtonStyle(color: condition ? .blue : .clear)
                 }
             }
+            .frame(height: 36)
         }
         .scrollIndicators(.never)
+        .scrollDisabled(!isScrollTrackingEnabled)
+        .contentMargins(.leading, 16, for: .scrollContent)
+        .onAppear {
+            headerOffset = 0
+            isScrollTrackingEnabled = false
+            DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
+                isScrollTrackingEnabled = true
+            }
+        }
     }
 
     private var filterBadge: some View {