Fixed Location Permission issue on Android - 1

lib/widgets/current_position_widget.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:permission_handler/permission_handler.dart';
 import 'package:rogapp/pages/destination/destination_controller.dart';
 import 'package:rogapp/routes/app_pages.dart'; // これを追加
 
@@ -14,8 +15,34 @@ class _CurrentPositionState extends State<CurrentPosition> {
   final DestinationController destinationController =
       Get.find<DestinationController>();
 
-  void _onLongPress() {
-    Get.toNamed(AppPages.SETTINGS); // これを追加
+  void _onLongPress() async {
+    PermissionStatus status = await Permission.location.status;
+    if (!status.isGranted) {
+      await showDialog(
+        context: context,
+        builder: (BuildContext context) {
+          return AlertDialog(
+            title: Text('位置情報の許可が必要です'),
+            content: Text('現在位置を表示するには、位置情報の許可が必要です。「設定」からアプリの権限を許可してください。'),
+            actions: [
+              TextButton(
+                child: Text('キャンセル'),
+                onPressed: () => Navigator.of(context).pop(),
+              ),
+              TextButton(
+                child: Text('設定'),
+                onPressed: () {
+                  Navigator.of(context).pop();
+                  openAppSettings();
+                },
+              ),
+            ],
+          );
+        },
+      );
+    } else {
+      Get.toNamed(AppPages.SETTINGS);
+    }
   }
 
   @override

lib/widgets/map_widget.dart

@@ -6,6 +6,7 @@ import 'package:flutter_polyline_points/flutter_polyline_points.dart';
 import 'package:geojson_vi/geojson_vi.dart';
 import 'package:get/get.dart';
 import 'package:latlong2/latlong.dart';
+import 'package:rogapp/pages/permission/permission.dart';
 import 'package:rogapp/pages/settings/settings_binding.dart';
 import 'package:rogapp/model/destination.dart';
 import 'package:rogapp/pages/destination/destination_controller.dart';
@@ -75,7 +76,8 @@ class _MapWidgetState extends State<MapWidget> with WidgetsBindingObserver {
         indexController.isMapControllerReady.value = true;
       });
       // MapControllerの初期化が完了したら、IndexControllerのonInitを呼び出す
-      indexController.checkPermission();
+      //indexController.checkPermission();
+      PermissionController.checkAndRequestPermissions();
     });
 
     late MapResetController mapResetController = MapResetController();

lib/widgets/permission_handler_screen.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:rogapp/pages/permission/permission.dart';
+
+class PermissionHandlerScreen extends StatefulWidget {
+  @override
+  _PermissionHandlerScreenState createState() => _PermissionHandlerScreenState();
+}
+
+class _PermissionHandlerScreenState extends State<PermissionHandlerScreen> {
+  @override
+  void initState() {
+    super.initState();
+
+    WidgetsBinding.instance.addPostFrameCallback((_) async {
+      await PermissionController.checkAndRequestPermissions();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('権限の確認'),
+      ),
+      body: Center(
+        child: Text('権限の確認中...'),
+      ),
+    );
+  }
+}