diff --git a/android/app/src/main/kotlin/com/dvox/gifunavi/LocationService.kt b/android/app/src/main/kotlin/com/dvox/gifunavi/LocationService.kt
index 0eb3875..e73914d 100644
--- a/android/app/src/main/kotlin/com/dvox/gifunavi/LocationService.kt
+++ b/android/app/src/main/kotlin/com/dvox/gifunavi/LocationService.kt
@@ -65,6 +65,26 @@ class LocationService : Service() {
 
         fusedLocationClient = LocationServices.getFusedLocationProviderClient(this)
 
+        // 位置情報の権限チェックとGPS有効化の確認を行う
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
+            val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
+            if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
+                val locationRequest = LocationRequest.create().apply {
+                    priority = LocationRequest.PRIORITY_HIGH_ACCURACY
+                    interval = 10000
+                    fastestInterval = 5000
+                }
+                fusedLocationClient.requestLocationUpdates(locationRequest, locationCallback, null)
+            } else {
+                Log.d("LocationService", "GPS is disabled.")
+                // GPSが無効の場合の処理を追加する（例: ユーザーにGPSを有効にするように促すなど）
+            }
+        } else {
+            Log.d("LocationService", "Location permission is not granted.")
+            // 位置情報の権限が許可されていない場合の処理を追加する
+        }
+
+        /*
         // GPSデバイスが有効になっているか確認する
         val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
         if (!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
@@ -73,6 +93,7 @@ class LocationService : Service() {
         }else{
             Log.d("LocationService", "GPS is enabled.")
         }
+         */
 
         // フォアグラウンドサービスの設定
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
@@ -185,6 +206,7 @@ class LocationService : Service() {
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
         Log.d("LocationService", "Android: onStartCommand.")
 
+        /* onCreate でやってるので除外。
         // 位置情報の権限チェックとGPS有効化の確認を行う
         if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
             val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
@@ -204,6 +226,8 @@ class LocationService : Service() {
             // 位置情報の権限が許可されていない場合の処理を追加する
         }
 
+         */
+
         // Foregroundサービスを開始
         startForeground(NOTIFICATION_ID, createNotification())
 
diff --git a/android/app/src/main/kotlin/com/dvox/gifunavi/MainActivity.kt b/android/app/src/main/kotlin/com/dvox/gifunavi/MainActivity.kt
index ea4b328..1011834 100644
--- a/android/app/src/main/kotlin/com/dvox/gifunavi/MainActivity.kt
+++ b/android/app/src/main/kotlin/com/dvox/gifunavi/MainActivity.kt
@@ -93,6 +93,7 @@ class MainActivity: FlutterActivity() {
         } else {
             Log.d("MainActivity", "Location permission is not granted.")
             // 位置情報の権限が許可されていない場合の処理を追加する
+            ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), PERMISSION_REQUEST_CODE)
         }
     }
 
diff --git a/lib/pages/index/index_controller.dart b/lib/pages/index/index_controller.dart
index 9d91d8d..6d77184 100644
--- a/lib/pages/index/index_controller.dart
+++ b/lib/pages/index/index_controller.dart
@@ -20,7 +20,7 @@ import 'package:shared_preferences/shared_preferences.dart';
 import '../../main.dart';
 
 
-class IndexController extends GetxController {
+class IndexController extends GetxController with WidgetsBindingObserver {
   List<GeoJSONFeatureCollection> locations = <GeoJSONFeatureCollection>[].obs;
   List<GeoJSONFeature> currentFeature = <GeoJSONFeature>[].obs;
   List<Destination> currentDestinationFeature = <Destination>[].obs;
@@ -183,6 +183,9 @@ class IndexController extends GetxController {
         _connectivity.onConnectivityChanged.listen(_updateConnectionStatus);
     super.onInit();
 
+    WidgetsBinding.instance?.addObserver(this);
+    _startLocationService(); // アプリ起動時にLocationServiceを開始する
+
     print('IndexController onInit called'); // デバッグ用の出力を追加
 
   }
@@ -196,9 +199,48 @@ class IndexController extends GetxController {
   @override
   void onClose() {
     _connectivitySubscription.cancel();
+    WidgetsBinding.instance?.removeObserver(this);
+    _stopLocationService(); // アプリ終了時にLocationServiceを停止する
     super.onClose();
   }
 
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+
+    if (state == AppLifecycleState.resumed) {
+      if (!_isLocationServiceRunning()) {
+        _startLocationService();
+      }
+    } else if (state == AppLifecycleState.paused) {
+      _stopLocationService();
+    }
+  }
+
+  bool _isLocationServiceRunning() {
+    // LocationServiceが実行中かどうかを確認する処理を実装する
+    // 例えば、SharedPreferencesにサービスの状態を保存するなど
+    // ここでは簡単のために、常にfalseを返すようにしています
+    return false;
+  }
+
+  void _startLocationService() async {
+    const platform = MethodChannel('location');
+    try {
+      await platform.invokeMethod('startLocationService');
+    } on PlatformException catch (e) {
+      print("Failed to start location service: '${e.message}'.");
+    }
+  }
+
+  void _stopLocationService() async {
+    const platform = MethodChannel('location');
+    try {
+      await platform.invokeMethod('stopLocationService');
+    } on PlatformException catch (e) {
+      print("Failed to stop location service: '${e.message}'.");
+    }
+  }
+
   /*
   @override
   void onReady() async {