Update tabs for current Flet API

app/main.py

@@ -88,12 +88,22 @@ def main(page: ft.Page) -> None:
         actions=[ft.IconButton(ft.Icons.SETTINGS_OUTLINED, on_click=open_settings)],
     )
     tabs = ft.Tabs(
+        content=ft.Column(
+            [
+                ft.TabBar(
+                    tabs=[ft.Tab(label="VPN"), ft.Tab(label="Белые списки")],
+                    scrollable=False,
+                ),
+                ft.TabBarView(
+                    controls=[vpn_screen, white_lists_screen],
+                    expand=True,
+                ),
+            ],
+            expand=True,
+        ),
+        length=2,
         expand=True,
         selected_index=0,
-        tabs=[
-            ft.Tab(text="VPN", content=vpn_screen),
-            ft.Tab(text="Белые списки", content=white_lists_screen),
-        ],
         on_change=tab_changed,
     )
     page.add(

app/screens/vpn.py

@@ -106,11 +106,15 @@ def build_vpn_screen(
         content.controls = [
             section_title("VPN", "Выберите стратегию и потяните слайдер вправо"),
             ft.Tabs(
-                selected_index=0 if controller.strategy is Strategy.BASIC else 1,
+                content=ft.TabBar(
                     tabs=[
-                    ft.Tab(text="Основная", icon=ft.Icons.LIGHT_MODE),
+                        ft.Tab(label="Основная", icon=ft.Icons.LIGHT_MODE),
-                    ft.Tab(text="Усиленная", icon=ft.Icons.SHIELD),
+                        ft.Tab(label="Усиленная", icon=ft.Icons.SHIELD),
                     ],
+                    scrollable=False,
+                ),
+                length=2,
+                selected_index=0 if controller.strategy is Strategy.BASIC else 1,
                 on_change=strategy_changed,
             ),
             ft.SegmentedButton(

tests/test_ui_startup.py

@@ -0,0 +1,32 @@
+import flet as ft
+
+from app.main import main
+
+
+class FakePage:
+    platform = ft.PagePlatform.LINUX
+
+    def add(self, *controls: ft.Control) -> None:
+        self.controls = controls
+
+    def update(self) -> None:
+        pass
+
+    def open(self, control: ft.Control) -> None:
+        pass
+
+    def close(self, control: ft.Control) -> None:
+        pass
+
+    def launch_url(self, url: str) -> None:
+        pass
+
+    def run_task(self, handler) -> None:
+        pass
+
+
+def test_ui_control_tree_builds_with_current_flet_api() -> None:
+    page = FakePage()
+    main(page)  # type: ignore[arg-type]
+    assert len(page.controls) == 1
+    assert isinstance(page.controls[0], ft.SafeArea)