Fix Android issues

lib/pages/destination/destination_controller.dart

@@ -44,6 +44,9 @@ import 'package:path_provider/path_provider.dart';
 // 目的地に関連する状態管理とロジックを担当するクラスです。
 //
 class DestinationController extends GetxController {
+  Timer? _checkForCheckinTimer;
+  final int _checkInterval = 3000; // ミリ秒単位でチェック間隔を設定
+
   late LocationSettings locationSettings;		// 位置情報の設定を保持する変数です。
 
   //late TeamController teamController = TeamController();
@@ -1019,15 +1022,16 @@ class DestinationController extends GetxController {
   // 2024-8-24 ... 佐伯呼び出しが必要なのか？
   //
   Future<void> checkForCheckin() async {
-    //print("--- Start of checkForCheckin function ---");
-    dbService.updateDatabase();
-    await Future.delayed(const Duration(milliseconds: 3000));
-    game_started = true;
+    if (!game_started) {
+      game_started = true;
+      dbService.updateDatabase();
+    }
 
     try {
       // ここで、エラー
       if( indexController.locations.isNotEmpty ) {
-        indexController.locations[0].features.forEach((fs) async {
+        for (var fs in indexController.locations[0].features) {
+        //indexController.locations[0].features.forEach((fs) async {
           GeoJSONMultiPoint mp = fs!.geometry as GeoJSONMultiPoint;
           LatLng pt = LatLng(mp.coordinates[0][1], mp.coordinates[0][0]);
 
@@ -1045,10 +1049,11 @@ class DestinationController extends GetxController {
             await startTimerLocation(fs, distFs);
             // Note: You cannot break out of forEach. If you need to stop processing, you might have to reconsider using forEach.
           }
-        });
+        }
 
         if (gps_push_started == false) {
-          unawaited(pushGPStoServer());
+          pushGPStoServer();
+          //unawaited(pushGPStoServer());
         }
       }
       //print("--- 123 ---- $skip_gps----");
@@ -1071,14 +1076,19 @@ class DestinationController extends GetxController {
     //     "^^^^^^^^ ${DateFormat('kk:mm:ss \n EEE d MMM').format(DateTime.now())}");
     try {
       gps_push_started = true;
-      ExternalService().pushGPS();
+      await ExternalService().pushGPS();
     } catch (e) {
+      print("An error occurred in pushGPStoServer: $e");
       //print("An error occurred: $e");
       //await pushGPStoServer();
     } finally {
-      //print("--- End of pushGPStoServer function, calling recursively ---");
-      await Future.delayed(const Duration(seconds: 5 * 60));
-      await pushGPStoServer();
+      if (gps_push_started) {
+        Future.delayed(Duration(minutes: 5), pushGPStoServer);
+      }
+
+        //print("--- End of pushGPStoServer function, calling recursively ---");
+      //await Future.delayed(const Duration(seconds: 5 * 60));
+      //await pushGPStoServer();
     }
   }
 
@@ -1332,12 +1342,13 @@ class DestinationController extends GetxController {
   @override
   void onInit() async {
     super.onInit();
+    startCheckForCheckinTimer();
 
-
+    /*
     WidgetsBinding.instance.addPostFrameCallback((_) async {
       await PermissionController.checkAndRequestPermissions();
     });
-     
+     */
 
     startGPSCheckTimer();
 
@@ -1415,6 +1426,18 @@ class DestinationController extends GetxController {
     //checkGPSDataReceived();
   }
 
+  void startCheckForCheckinTimer() {
+    _checkForCheckinTimer = Timer.periodic(Duration(milliseconds: _checkInterval), (_) {
+      checkForCheckin();
+    });
+  }
+
+  void stopCheckForCheckinTimer() {
+    _checkForCheckinTimer?.cancel();
+    _checkForCheckinTimer = null;
+  }
+
+
   void restartGPS(){
     // GPSデータのListenを再開する処理を追加
     Future.delayed(const Duration(seconds: 5), () {
@@ -1427,8 +1450,9 @@ class DestinationController extends GetxController {
   //
   @override
   void onClose() {
-    gpsCheckTimer?.cancel();
-    locationController.stopPositionStream();
+    stopCheckForCheckinTimer();
+    //gpsCheckTimer?.cancel();
+    //locationController.stopPositionStream();
     super.onClose();
   }