Khởi tạo ban đầu

app/(tabs)/_layout.tsx

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+import { Tabs, useSegments } from "expo-router";
+
+import { HapticTab } from "@/components/haptic-tab";
+import { IconSymbol } from "@/components/ui/icon-symbol";
+import { Colors } from "@/constants/theme";
+import { useI18n } from "@/hooks/use-i18n";
+import { useColorScheme } from "@/hooks/use-theme-context";
+import { useEffect, useRef } from "react";
+
+export default function TabLayout() {
+  const colorScheme = useColorScheme();
+  const segments = useSegments() as string[];
+  const prev = useRef<string | null>(null);
+  const currentSegment = segments[1] ?? segments[segments.length - 1] ?? null;
+  const { t, locale } = useI18n();
+  useEffect(() => {
+    if (prev.current !== currentSegment) {
+      // console.log("Tab changed ->", { from: prev.current, to: currentSegment });
+      // TODO: xử lý khi chuyển tab ở đây
+      if (prev.current === "(tabs)" && currentSegment !== "(tabs)") {
+        // stopEvents();
+        // console.log("Stop events");
+      } else if (prev.current !== "(tabs)" && currentSegment === "(tabs)") {
+        // we came back into the tabs group — restart polling
+        // startEvents();
+        // console.log("start events");
+      }
+      prev.current = currentSegment;
+    }
+  }, [currentSegment]);
+
+  return (
+    <Tabs
+      screenOptions={{
+        tabBarActiveTintColor: Colors[colorScheme ?? "light"].tint,
+        headerShown: false,
+        tabBarButton: HapticTab,
+      }}
+    >
+      <Tabs.Screen
+        name="index"
+        options={{
+          title: t("navigation.home"),
+          tabBarIcon: ({ color }) => (
+            <IconSymbol size={28} name="map.fill" color={color} />
+          ),
+        }}
+      />
+
+      <Tabs.Screen
+        name="tripInfo"
+        options={{
+          title: t("navigation.trip"),
+          tabBarIcon: ({ color }) => (
+            <IconSymbol size={28} name="ferry.fill" color={color} />
+          ),
+        }}
+      />
+      <Tabs.Screen
+        name="diary"
+        options={{
+          title: t("navigation.diary"),
+          tabBarIcon: ({ color }) => (
+            <IconSymbol size={28} name="book.closed.fill" color={color} />
+          ),
+        }}
+      />
+      <Tabs.Screen
+        name="sensor"
+        options={{
+          title: t("navigation.sensor"),
+          tabBarIcon: ({ color }) => (
+            <IconSymbol
+              size={28}
+              name="dot.radiowaves.left.and.right"
+              color={color}
+            />
+          ),
+        }}
+      />
+      <Tabs.Screen
+        name="setting"
+        options={{
+          title: t("navigation.setting"),
+          tabBarIcon: ({ color }) => (
+            <IconSymbol size={28} name="gear" color={color} />
+          ),
+        }}
+      />
+    </Tabs>
+  );
+}