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suixinkan/Features/Main/Views/MainTabsView.swift

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+//
+//  MainTabsView.swift
+//  suixinkan
+//
+//  Created by Codex on 2026/6/18.
+//
+
+import SwiftUI
+
+/// 主 Tab 容器视图，为每个 Tab 创建独立的 NavigationStack。
+struct MainTabsView: View {
+    @Environment(AppRouter.self) private var appRouter
+
+    var body: some View {
+        @Bindable var appRouter = appRouter
+
+        TabView(selection: $appRouter.selectedTab) {
+            ForEach(AppTab.allCases) { tab in
+                NavigationStack(path: appRouter.binding(for: tab)) {
+                    tab.rootView
+                        .navigationTitle(tab.title)
+                        .navigationDestination(for: AppRoute.self) { route in
+                            route.destinationView
+                                .toolbar(route.hidesTabBarWhenPushed ? .hidden : .visible, for: .tabBar)
+                        }
+                }
+                .environment(appRouter.router(for: tab))
+                .tabItem { tab.label }
+                .tag(tab)
+            }
+        }
+    }
+}
+
+#Preview {
+    MainTabsView()
+        .environment(AppRouter())
+}