diff --git a/lib/checker/checker.dart b/lib/checker/checker.dart
index 31e31be91..2f4a90a73 100644
--- a/lib/checker/checker.dart
+++ b/lib/checker/checker.dart
@@ -7,6 +7,7 @@ import 'package:path_provider/path_provider.dart';
 import 'package:sqflite/sqflite.dart';
 import 'package:violet/database/query.dart';
 import 'package:violet/log/log.dart';
+import 'package:violet/settings/path.dart';
 
 class VioletChecker {
   static Future<bool> checkArticleDatabase() async {
@@ -18,17 +19,8 @@ class VioletChecker {
       //  0. get database path
       //
       var dbPath = Platform.isAndroid
-          ? '${(await getApplicationDocumentsDirectory()).path}/data/data.db'
-          : '${await getDatabasesPath()}/data.db';
-      if(Platform.isLinux){
-        var home = '';
-        Platform.environment.forEach((key, value) {
-          if(key == 'HOME'){
-            home = value;
-          }
-        });
-        dbPath = '${home}/.violet/data.db';
-      }
+          ? '${(await DefaultPathProvider.getBaseDirectory())}/data/data.db'
+          : '${(await DefaultPathProvider.getBaseDirectory())}/data.db';
 
       //
       // 1. check file exists
@@ -106,19 +98,7 @@ class VioletChecker {
       //
       //  0. get database path
       //
-      var dir;
-      if(Platform.isAndroid || Platform.isIOS){
-        var d = await getApplicationDocumentsDirectory();
-        dir = d.path;
-      } else if(Platform.isLinux){
-        var home = '';
-        Platform.environment.forEach((key, value) {
-          if(key == 'HOME'){
-            home = value;
-          }
-        });
-        dir = '${home}/.violet';
-      }
+      var dir = DefaultPathProvider.getBaseDirectory();
       var dbPath = '${dir}/user.db';
 
       //
diff --git a/lib/component/hitomi/hitomi.dart b/lib/component/hitomi/hitomi.dart
index 15d73ee5e..b8b1cf21d 100644
--- a/lib/component/hitomi/hitomi.dart
+++ b/lib/component/hitomi/hitomi.dart
@@ -11,6 +11,7 @@ import 'package:violet/algorithm/distance.dart';
 import 'package:violet/component/hitomi/displayed_tag.dart';
 import 'package:violet/component/hitomi/tag_translate.dart';
 import 'package:violet/script/script_manager.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/variables.dart';
 
@@ -27,18 +28,7 @@ class HitomiManager {
   static int? getArticleCount(String classification, String name) {
     if (tagmap == null) {
       final subdir = Platform.isAndroid ? '/data' : '';
-      late final path;
-      if(Platform.isAndroid || Platform.isIOS){
-        path = File('${Variables.applicationDocumentsDirectory}$subdir/index.json');
-      } else if(Platform.isLinux){
-        var home = '';
-        Platform.environment.forEach((key, value) {
-          if(key == 'HOME'){
-            home = value;
-          }
-        });
-        path = File('${home}/.violet$subdir/index.json');
-      }
+      final path = File('${Variables.applicationDocumentsDirectory}$subdir/index.json');
       final text = path.readAsStringSync();
       tagmap = jsonDecode(text);
     }
@@ -101,21 +91,8 @@ class HitomiManager {
         tagmap = jsonDecode(await file.readAsString());
       } else {
         final subdir = Platform.isAndroid ? '/data' : '';
-        late final directory;
-        late final path;
-        if(Platform.isAndroid || Platform.isIOS){
-          directory = await getApplicationDocumentsDirectory();
-          path = File('${directory.path}$subdir/index.json');
-        } else if(Platform.isLinux){
-          var home = '';
-          Platform.environment.forEach((key, value) {
-            if(key == 'HOME'){
-              home = value;
-            }
-          });
-          directory = '${home}/.violet';
-          path = File('${directory}$subdir/index.json');
-        }
+        final directory = (await (DefaultPathProvider.getDocumentsDirectory()));
+        final path = File('${directory}$subdir/index.json');
         final text = path.readAsStringSync();
         tagmap = jsonDecode(text);
       }
diff --git a/lib/component/hitomi/indexs.dart b/lib/component/hitomi/indexs.dart
index bdb488a5f..830f78b6e 100644
--- a/lib/component/hitomi/indexs.dart
+++ b/lib/component/hitomi/indexs.dart
@@ -10,6 +10,7 @@ import 'package:tuple/tuple.dart';
 import 'package:violet/algorithm/distance.dart';
 import 'package:violet/component/hitomi/tag_translate.dart';
 import 'package:violet/log/log.dart';
+import 'package:violet/settings/path.dart';
 
 // This is used for estimation similiar Aritst/Group/Uplaoder with each others.
 class HitomiIndexs {
@@ -40,19 +41,7 @@ class HitomiIndexs {
   static late Map<String, dynamic> relatedTag;
 
   static Future<void> init() async {
-    late final directory;
-    if(Platform.isAndroid || Platform.isIOS){
-      var d = await getApplicationDocumentsDirectory();
-      directory = d.path;
-    } else if(Platform.isLinux){
-      var home = '';
-      Platform.environment.forEach((key, value) {
-        if(key == 'HOME'){
-          home = value;
-        }
-      });
-      directory = '${home}/.violet';
-    }
+    final directory = await DefaultPathProvider.getDocumentsDirectory();
     final subdir = Platform.isAndroid ? '/data' : '';
 
     // No data on first run.
diff --git a/lib/component/hitomi/series_finder.dart b/lib/component/hitomi/series_finder.dart
index 7e23aff91..5eb1fe7fc 100644
--- a/lib/component/hitomi/series_finder.dart
+++ b/lib/component/hitomi/series_finder.dart
@@ -9,25 +9,13 @@ import 'package:tuple/tuple.dart';
 import 'package:violet/component/hitomi/hitomi.dart';
 import 'package:violet/component/hitomi/title_cluster.dart';
 import 'package:violet/database/query.dart';
+import 'package:violet/settings/path.dart';
 
 class SeriesFinder {
   static Future<void> doFind1() async {
     final subdir = Platform.isAndroid ? '/data' : '';
-    late final directory;
-    late final path;
-    if(Platform.isAndroid || Platform.isIOS){
-      directory = await getApplicationDocumentsDirectory();
-      path = File('${directory.path}$subdir/index.json');
-    } else if(Platform.isLinux){
-      var home = '';
-      Platform.environment.forEach((key, value) {
-        if(key == 'HOME'){
-          home = value;
-        }
-      });
-      directory = '${home}/.violet';
-      path = '${directory}$subdir/index.json';
-    }
+    final directory = await DefaultPathProvider.getDocumentsDirectory();
+    final path = File('${directory}$subdir/index.json');
     final text = path.readAsStringSync();
     final tagmap = jsonDecode(text);
     final artists = tagmap['artist'] as Map<String, dynamic>;
diff --git a/lib/database/database.dart b/lib/database/database.dart
index aae44be3e..8fa98a377 100644
--- a/lib/database/database.dart
+++ b/lib/database/database.dart
@@ -7,6 +7,7 @@ import 'package:flutter/material.dart';
 import 'package:path/path.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:sqflite/sqflite.dart';
+import 'package:violet/settings/path.dart';
 
 class DataBaseManager {
   String? dbPath;
@@ -33,19 +34,9 @@ class DataBaseManager {
       if (Platform.environment.containsKey('FLUTTER_TEST')) {
         dbPath = join(Directory.current.path, 'test/db/data.db');
       } else {
-        if(Platform.isAndroid || Platform.isIOS){
-        dbPath = Platform.isAndroid
-            ? '${(await getApplicationDocumentsDirectory()).path}/data/data.db'
-            : '${await getDatabasesPath()}/data.db';
-        } else if(Platform.isLinux){
-          var home = '';
-          Platform.environment.forEach((key, value) {
-            if(key == 'HOME'){
-              home = value;
-            }
-          });
-          dbPath = '${home}/.violet/data.db';
-        }
+        dbPath = Platform.isAndroid 
+          ? '${(await DefaultPathProvider.getBaseDirectory())}/data/data.db'
+          : '${(await DefaultPathProvider.getBaseDirectory())}/data.db';
       }
       _instance = create(dbPath);
       await _instance!.open();
diff --git a/lib/database/user/user.dart b/lib/database/user/user.dart
index 2d070b1af..5ba33104d 100644
--- a/lib/database/user/user.dart
+++ b/lib/database/user/user.dart
@@ -6,24 +6,15 @@ import 'dart:io';
 
 import 'package:path_provider/path_provider.dart';
 import 'package:violet/database/database.dart';
+import 'package:violet/settings/path.dart';
 
 class CommonUserDatabase extends DataBaseManager {
   static DataBaseManager? _instance;
 
   static Future<DataBaseManager> getInstance() async {
     if (_instance == null) {
-      var home = '';
-      if(Platform.isAndroid || Platform.isIOS){
-        var dir = await getApplicationDocumentsDirectory();
-        _instance = DataBaseManager.create('${dir.path}/user.db');
-      } else if(Platform.isLinux){
-        Platform.environment.forEach((key, value) => {
-          if(key == 'HOME'){
-            home = value
-          }
-        });
-        _instance = DataBaseManager.create('${home}/.violet/user.db');
-      }
+      var dir = await DefaultPathProvider.getDocumentsDirectory();
+      _instance = DataBaseManager.create('${dir}/user.db');
       await _instance!.open();
     }
     return _instance!;
diff --git a/lib/log/act_log.dart b/lib/log/act_log.dart
index 81a94cd1e..1a6009a30 100644
--- a/lib/log/act_log.dart
+++ b/lib/log/act_log.dart
@@ -9,6 +9,7 @@ import 'package:crypto/crypto.dart';
 import 'package:path/path.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:synchronized/synchronized.dart' as sync;
+import 'package:violet/settings/path.dart';
 
 enum ActLogType {
   none,
@@ -109,19 +110,7 @@ class ActLogger {
     if (Platform.environment.containsKey('FLUTTER_TEST')) {
       logFile = File('act-log.txt');
     } else {
-      late final dir;
-      if(Platform.isAndroid || Platform.isIOS){
-        var d = await getApplicationDocumentsDirectory();
-        dir = d.path;
-      } else if(Platform.isLinux){
-        var home = '';
-        Platform.environment.forEach((key, value) {
-          if(key == 'HOME'){
-            home = value;
-          }
-        });
-        dir = '${home}/.violet';
-      }
+      final dir = await DefaultPathProvider.getDocumentsDirectory();
       logFile = File(join(dir, 'act-log.txt'));
     }
 
@@ -150,21 +139,7 @@ class ActLogger {
   }
 
   static Future<void> exportLog() async {
-    late final ext;
-    if(Platform.isAndroid || Platform.isIOS){
-      var d = Platform.isIOS
-        ? await getApplicationSupportDirectory()
-        : await getExternalStorageDirectory();
-      ext = d!.path;
-    } else if(Platform.isLinux){
-      var home = '';
-      Platform.environment.forEach((key, value) {
-        if(key == 'HOME'){
-          key = value;
-        }
-      });
-      ext = '${home}/.violet';
-    }
+    final ext = await DefaultPathProvider.getExportDirectory();
     final extpath = '${ext}/act-log.txt';
     await logFile.copy(extpath);
   }
diff --git a/lib/log/log.dart b/lib/log/log.dart
index 4c20cf7e0..a56d5bfb4 100644
--- a/lib/log/log.dart
+++ b/lib/log/log.dart
@@ -7,6 +7,7 @@ import 'package:intl/intl.dart';
 import 'package:path/path.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:synchronized/synchronized.dart' as sync;
+import 'package:violet/settings/path.dart';
 
 class LogEvent {
   DateTime? dateTime;
@@ -48,19 +49,8 @@ class Logger {
     if (Platform.environment.containsKey('FLUTTER_TEST')) {
       logFile = File('log.txt');
     } else {
-      if(Platform.isAndroid || Platform.isIOS){
-        final dir = await getApplicationDocumentsDirectory();
-        logFile = File(join(dir.path, 'log.txt'));
-      } else if(Platform.isLinux){
-        var home = '';
-        Platform.environment.forEach((key, value) {
-          if(key == 'HOME'){
-            home = value;
-          }
-        });
-        final dir = '${home}/.violet';
-        logFile = File(join(dir, 'log.txt'));
-      }
+      final dir = await DefaultPathProvider.getDocumentsDirectory();
+      logFile = File(join(dir, 'log.txt'));
     }
 
     if (!await logFile.exists()) {
@@ -121,12 +111,10 @@ class Logger {
   }
 
   static Future<void> exportLog() async {
-    final ext = Platform.isIOS
-        ? await getApplicationSupportDirectory()
-        : await getExternalStorageDirectory();
+    final ext = await DefaultPathProvider.getExportDirectory();
     // final dateFormat = DateFormat("yyyy-MM-dd HH:mm:ss");
     // final extpath = '${ext.path}/log-${dateFormat.format(DateTime.now())}.log';
-    final extpath = '${ext!.path}/log.txt';
+    final extpath = '${ext}/log.txt';
     await logFile.copy(extpath);
   }
 }
diff --git a/lib/pages/database_download/database_download_page.dart b/lib/pages/database_download/database_download_page.dart
index 8c49812aa..53c6d6020 100644
--- a/lib/pages/database_download/database_download_page.dart
+++ b/lib/pages/database_download/database_download_page.dart
@@ -21,6 +21,7 @@ import 'package:violet/locale/locale.dart';
 import 'package:violet/log/log.dart';
 import 'package:violet/pages/database_download/decompress.dart';
 import 'package:violet/platform/misc.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/variables.dart';
 import 'package:violet/version/sync.dart';
@@ -62,32 +63,10 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
       final prefs = await MultiPreferences.getInstance();
       if ((await prefs.getInt('db_exists')) == 1) {
         var dbPath = Platform.isAndroid
-            ? '${(await getApplicationDocumentsDirectory()).path}/data/data.db'
-            : '${await getDatabasesPath()}/data.db';
-        if(Platform.isLinux){
-          var home = '';
-          Platform.environment.forEach((key, value) {
-            if(key == 'HOME'){
-              home = value;
-            }
-          });
-          dbPath = '${home}/.violet/data.db';
-        }
+          ? '${(await DefaultPathProvider.getBaseDirectory())}/data/data.db'
+          : '${(await DefaultPathProvider.getBaseDirectory())}/data.db';
         if (await File(dbPath).exists()) await File(dbPath).delete();
-        var dir;
-        if(Platform.isAndroid || Platform.isIOS){
-          var d = await getApplicationDocumentsDirectory();
-          dir = d.path;
-        }
-        if(Platform.isLinux){
-          var home = '';
-          Platform.environment.forEach((key, value) {
-            if(key == 'HOME'){
-              home = value;
-            }
-          });
-          dir = '${home}/.violet';
-        }
+        var dir = '${(await DefaultPathProvider.getDocumentsDirectory())}';
         if (await Directory('${dir}/data').exists()) {
           await Directory('${dir}/data').delete(recursive: true);
         }
@@ -140,9 +119,9 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
     int tnu = 0;
 
     try {
-      var dir = await getApplicationDocumentsDirectory();
-      if (await File('${dir.path}/db.sql.7z').exists()) {
-        await File('${dir.path}/db.sql.7z').delete();
+      var dir = await DefaultPathProvider.getBaseDirectory();
+      if (await File('${dir}/db.sql.7z').exists()) {
+        await File('${dir}/db.sql.7z').delete();
       }
       switch(target){
         case 'latest': await SyncManager.checkSyncLatest(_throw); break;
@@ -166,7 +145,7 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
               }));
       await dio.download(
           SyncManager.getLatestDB().getDBDownloadUrl(widget.dbType!),
-          '${dir.path}/db.sql.7z', onReceiveProgress: (rec, total) {
+          '${dir}/db.sql.7z', onReceiveProgress: (rec, total) {
         nu += rec - latest;
         tnu += rec - latest;
         latest = rec;
@@ -193,23 +172,23 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
       });
 
       final p7zip = P7zip();
-      if (await Directory('${dir.path}/data2').exists()) {
-        await Directory('${dir.path}/data2').delete(recursive: true);
+      if (await Directory('${dir}/data2').exists()) {
+        await Directory('${dir}/data2').delete(recursive: true);
       }
       await p7zip.decompress(
-        ['${dir.path}/db.sql.7z'],
-        path: '${dir.path}/data2',
+        ['${dir}/db.sql.7z'],
+        path: '${dir}/data2',
       );
       Variables.databaseDecompressed = true;
-      if (await Directory('${dir.path}/data').exists()) {
-        await Directory('${dir.path}/data').delete(recursive: true);
+      if (await Directory('${dir}/data').exists()) {
+        await Directory('${dir}/data').delete(recursive: true);
       }
-      await Directory('${dir.path}/data2').rename('${dir.path}/data');
-      if (await Directory('${dir.path}/data2').exists()) {
-        await Directory('${dir.path}/data2').delete(recursive: true);
+      await Directory('${dir}/data2').rename('${dir}/data');
+      if (await Directory('${dir}/data2').exists()) {
+        await Directory('${dir}/data2').delete(recursive: true);
       }
 
-      await File('${dir.path}/db.sql.7z').delete();
+      await File('${dir}/db.sql.7z').delete();
 
       final prefs = await MultiPreferences.getInstance();
       await prefs.setInt('db_exists', 1);
@@ -266,7 +245,7 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
     int tnu = 0;
 
     try {
-      var dir = await getDatabasesPath();
+      var dir = await DefaultPathProvider.getBaseDirectory();
       if (await File('$dir/data.db').exists()) {
         await File('$dir/data.db').delete();
       }
@@ -369,15 +348,7 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
     int tnu = 0;
 
     try {
-      var dir = '';
-      if(Platform.isLinux){
-        Platform.environment.forEach((key, value) => {
-          if(key == 'HOME'){
-            dir = value
-          }
-        });
-        dir = '${dir}/.violet';
-      }
+      var dir = await DefaultPathProvider.getBaseDirectory();
       if (await File('$dir/data.db').exists()) {
         await File('$dir/data.db').delete();
       }
@@ -675,19 +646,7 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
           'class': classes,
         };
 
-        late final directory;
-        if(Platform.isAndroid || Platform.isIOS){
-          var d = await getApplicationDocumentsDirectory();
-          directory = d.path;
-        } else if(Platform.isLinux){
-          var home = '';
-          Platform.environment.forEach((key, value) {
-            if(key == 'HOME'){
-              home = value;
-            }
-          });
-          directory = '${home}/.violet';
-        }
+        final directory = await DefaultPathProvider.getDocumentsDirectory();
         final path1 = File('${directory}/index.json');
         path1.writeAsString(jsonEncode(index));
 
diff --git a/lib/pages/download/download_page.dart b/lib/pages/download/download_page.dart
index 6e82d6ec5..c8ce0a92f 100644
--- a/lib/pages/download/download_page.dart
+++ b/lib/pages/download/download_page.dart
@@ -33,6 +33,7 @@ import 'package:violet/pages/segment/filter_page.dart';
 import 'package:violet/pages/segment/filter_page_controller.dart';
 import 'package:violet/pages/segment/platform_navigator.dart';
 import 'package:violet/script/script_manager.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
 import 'package:violet/widgets/search_bar.dart';
@@ -124,19 +125,8 @@ class _DownloadPageState extends ThemeSwitchableState<DownloadPage>
     /// to
     /// /var/mobile/Containers/Data/Application/<new-app-code>/Documents
 
-    late final newPath;
-    if(Platform.isAndroid || Platform.isIOS){
-      newPath = (await getApplicationDocumentsDirectory()).path;
-    } else if(Platform.isLinux){
-      var home = '';
-      Platform.environment.forEach((key, value) {
-        if(key == 'HOME'){
-          home = value;
-        }
-      });
-      newPath = '${home}/.violet';
-    } else { newPath = ''; }
-
+    final newPath = await DefaultPathProvider.getBaseDirectory();
+    
     for (var item in items) {
       if (item.files() == null) continue;
 
diff --git a/lib/pages/download/download_routine.dart b/lib/pages/download/download_routine.dart
index b7298e713..688a8457f 100644
--- a/lib/pages/download/download_routine.dart
+++ b/lib/pages/download/download_routine.dart
@@ -13,6 +13,7 @@ import 'package:violet/component/downloadable.dart';
 import 'package:violet/component/hentai_download_manager.dart';
 import 'package:violet/database/user/download.dart';
 import 'package:violet/downloader/isolate_downloader.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 
 class DownloadRoutine {
@@ -87,7 +88,7 @@ class DownloadRoutine {
   }
 
   Future<void> extractFilePath() async {
-    final inner = (await getApplicationDocumentsDirectory()).path;
+    final inner = (await DefaultPathProvider.getDocumentsDirectory());
     final files = tasks!
         .map((e) => join(
             Settings.useInnerStorage ? inner : Settings.downloadBasePath,
@@ -123,7 +124,7 @@ class DownloadRoutine {
     var basepath = Settings.downloadBasePath;
 
     if (Settings.useInnerStorage) {
-      basepath = (await getApplicationDocumentsDirectory()).path;
+      basepath = (await DefaultPathProvider.getDocumentsDirectory());
     }
 
     downloader.appendTasks(tasks!.map((e) {
@@ -150,7 +151,7 @@ class DownloadRoutine {
     var basepath = Settings.downloadBasePath;
 
     if (Settings.useInnerStorage) {
-      basepath = (await getApplicationDocumentsDirectory()).path;
+      basepath = (await DefaultPathProvider.getDocumentsDirectory());
     }
 
     final filenames = tasks!
@@ -190,7 +191,7 @@ class DownloadRoutine {
     var basepath = Settings.downloadBasePath;
 
     if (Settings.useInnerStorage) {
-      basepath = (await getApplicationDocumentsDirectory()).path;
+      basepath = (await DefaultPathProvider.getDocumentsDirectory());
     }
 
     downloader.appendTasks(invalidIndex.map((e) => tasks![e]).map((e) {
diff --git a/lib/pages/main/info/lab/bookmark/bookmarks.dart b/lib/pages/main/info/lab/bookmark/bookmarks.dart
index a3d69bb9a..f2c64dee7 100644
--- a/lib/pages/main/info/lab/bookmark/bookmarks.dart
+++ b/lib/pages/main/info/lab/bookmark/bookmarks.dart
@@ -13,6 +13,7 @@ import 'package:violet/pages/main/info/lab/bookmark/bookmarks_article_list.dart'
 import 'package:violet/pages/main/info/lab/bookmark/bookmarks_records.dart';
 import 'package:violet/pages/segment/platform_navigator.dart';
 import 'package:violet/server/violet.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
 
@@ -173,19 +174,7 @@ class _BookmarkPageState extends State<LabBookmarkPage> {
                       DateTime.parse(data.datetime()));
 
 
-                  var dir;
-                  if(Platform.isAndroid || Platform.isIOS){
-                    var d = await getApplicationDocumentsDirectory();
-                    dir = d.path;
-                  } else if(Platform.isLinux){
-                    var home = '';
-                    Platform.environment.forEach((key, value) {
-                      if(key == 'HOME'){
-                        home = value;
-                      }
-                    });
-                    dir = '${home}/.violet';
-                  }
+                  var dir = await DefaultPathProvider.getDocumentsDirectory();
                   var dbraw = await openDatabase('${dir}/user.db');
                   await dbraw.transaction((txn) async {
                     final batch = txn.batch();
diff --git a/lib/pages/main/info/lab_page.dart b/lib/pages/main/info/lab_page.dart
index e5311ad14..7852a16da 100644
--- a/lib/pages/main/info/lab_page.dart
+++ b/lib/pages/main/info/lab_page.dart
@@ -32,6 +32,7 @@ import 'package:violet/pages/segment/platform_navigator.dart';
 import 'package:violet/pages/settings/log_page.dart';
 import 'package:violet/server/violet.dart';
 import 'package:violet/server/wsalt.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
 
@@ -348,20 +349,8 @@ class _LaboratoryPageState extends State<LaboratoryPage> {
                       'prefs.json',
                       jsonEncode(Map.fromEntries(values_itr.toList(growable: false))));
 
-                  late final dir;
-                  if(Platform.isAndroid || Platform.isIOS) {
-                    dir = await getApplicationDocumentsDirectory();
-                    await VioletServer.uploadFile('${dir.path}/user.db');
-                  } else if(Platform.isLinux) {
-                    var home = '';
-                    Platform.environment.forEach((key, value) {
-                      if(key == 'HOME'){
-                        home = value;
-                      }
-                    });
-                    dir = '${home}/.violet';
-                    await VioletServer.uploadFile('${dir}/user.db');
-                  }
+                  final dir = await DefaultPathProvider.getDocumentsDirectory();
+                  await VioletServer.uploadFile('${dir}/user.db');
                   await Future.delayed(const Duration(milliseconds: 500));
                   await VioletServer.uploadFile(ActLogger.logFile.path);
                 },
diff --git a/lib/pages/main/main_page.dart b/lib/pages/main/main_page.dart
index 431d154a7..b866a4e40 100644
--- a/lib/pages/main/main_page.dart
+++ b/lib/pages/main/main_page.dart
@@ -39,6 +39,7 @@ import 'package:violet/pages/segment/double_tap_to_top.dart';
 import 'package:violet/pages/segment/platform_navigator.dart';
 import 'package:violet/pages/splash/splash_page.dart';
 import 'package:violet/platform/android_external_storage_directory.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
 import 'package:violet/variables.dart';
@@ -534,19 +535,7 @@ class _VersionAreaWidgetState extends State<_VersionAreaWidget> {
       return;
     }
 
-    var dir;
-    if(Platform.isAndroid || Platform.isIOS){
-      var d = await getApplicationDocumentsDirectory();
-      dir = d.path;
-    } else if(Platform.isLinux){
-      var home = '';
-      Platform.environment.forEach((key, value) {
-        if(key == 'HOME'){
-          home = value;
-        }
-      });
-      dir = '${home}/.violet';
-    }
+    var dir = await DefaultPathProvider.getDocumentsDirectory();
 
     try {
       await ((await openDatabase('${dir}/data/data.db')).close());
@@ -566,21 +555,9 @@ class _VersionAreaWidgetState extends State<_VersionAreaWidget> {
                 )))
         .then((value) async {
       HitomiIndexs.init();
-      late final directory;
-      late final path;
-      if(Platform.isAndroid || Platform.isIOS){
-        directory = await getApplicationDocumentsDirectory();
-        path = File('${directory.path}/data/index.json');
-      } else if(Platform.isLinux){
-        var home = '';
-        Platform.environment.forEach((key, value) {
-          if(key == 'HOME'){
-            home = value;
-          }
-        });
-        directory = '${home}/.violet';
-        path = File('${directory}/index.json');
-      }
+      final subdir = Platform.isAndroid ? '/data' : '';
+      final directory = await DefaultPathProvider.getDocumentsDirectory();
+      final path = File('${directory}$subdir/index.json');
       final text = path.readAsStringSync();
       HitomiManager.tagmap = jsonDecode(text);
       await DataBaseManager.reloadInstance();
diff --git a/lib/pages/settings/restore_bookmark.dart b/lib/pages/settings/restore_bookmark.dart
index 9c2fd0f45..a129b7170 100644
--- a/lib/pages/settings/restore_bookmark.dart
+++ b/lib/pages/settings/restore_bookmark.dart
@@ -10,6 +10,7 @@ import 'package:sqflite/sqflite.dart';
 import 'package:violet/database/user/bookmark.dart';
 import 'package:violet/database/user/record.dart';
 import 'package:violet/log/log.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
 import 'package:violet/widgets/toast.dart';
@@ -60,18 +61,7 @@ class _RestoreBookmarkPageState extends State<RestoreBookmarkPage> {
         }
 
         // 북마크 작품 처리
-        var dir;
-        if(Platform.isAndroid || Platform.isIOS){
-          dir = await getApplicationDocumentsDirectory();
-        } else if(Platform.isLinux){
-          var home = '';
-          Platform.environment.forEach((key, value) {
-            if(key == 'HOME'){
-              home = value;
-            }
-          });
-          dir = '${home}/.violet';
-        }
+        var dir = await DefaultPathProvider.getDocumentsDirectory();
         var dbraw = await openDatabase('${dir}/user.db');
         await dbraw.transaction((txn) async {
           final batch = txn.batch();
diff --git a/lib/pages/settings/settings_page.dart b/lib/pages/settings/settings_page.dart
index adf2cfb71..ca7e93fc2 100644
--- a/lib/pages/settings/settings_page.dart
+++ b/lib/pages/settings/settings_page.dart
@@ -61,6 +61,7 @@ import 'package:violet/pages/settings/version_page.dart';
 import 'package:violet/pages/splash/splash_page.dart';
 import 'package:violet/platform/misc.dart';
 import 'package:violet/server/violet.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
 import 'package:violet/variables.dart';
@@ -1231,19 +1232,7 @@ class _SettingsPageState extends State<SettingsPage>
                       return;
                     }
 
-                    var dir;
-                    if(Platform.isAndroid || Platform.isIOS){
-                      var d = await getApplicationDocumentsDirectory();
-                      dir = d.path;
-                    } else if(Platform.isLinux){
-                      var home = '';
-                      Platform.environment.forEach((key, value) {
-                        if(key == 'HOME'){
-                          home = value;
-                        }
-                      });
-                      dir = '${home}/.violet';
-                    }
+                    var dir = await DefaultPathProvider.getDocumentsDirectory();
                     try {
                       await ((await openDatabase('${dir}/data/data.db'))
                           .close());
@@ -1261,20 +1250,8 @@ class _SettingsPageState extends State<SettingsPage>
                         .then(
                       (value) async {
                         HitomiIndexs.init();
-                        late final directory;
-                        if(Platform.isAndroid || Platform.isIOS){
-                          var d = await getApplicationDocumentsDirectory();
-                          directory = d.path;
-                        } else if(Platform.isLinux){
-                          var home = '';
-                          Platform.environment.forEach((key, value) {
-                            if(key == 'HOME'){
-                              home = value;
-                            }
-                          });
-                          directory = '${home}/.violet';
-                        }
-                        final path = File('${directory.path}/data/index.json');
+                        final directory = await DefaultPathProvider.getDocumentsDirectory();
+                        final path = File('${directory}/data/index.json');
                         final text = path.readAsStringSync();
                         HitomiManager.tagmap = jsonDecode(text);
                         await DataBaseManager.reloadInstance();
@@ -1966,23 +1943,9 @@ class _SettingsPageState extends State<SettingsPage>
               }
 
               final pickedFile = File(pickedFilePath);
-              late final db;
-              if(Platform.isAndroid || Platform.isIOS){
-                db = Platform.isIOS
-                    ? await getApplicationSupportDirectory()
-                    : (await getApplicationDocumentsDirectory());
-
-                await pickedFile.copy('${db.path}/user.db');
-              } else if(Platform.isLinux){
-                var home = '';
-                Platform.environment.forEach((key, value) {
-                  if(key == 'HOME'){
-                    home = value;
-                  }
-                });
-                db = '${home}/.violet';
-                await pickedFile.copy('${db}/user.db');
-              }
+              final db = await DefaultPathProvider.getSupportDirectory();
+                
+              await pickedFile.copy('${db}/user.db');
               await Bookmark.getInstance();
 
               flutterToast.showToast(
@@ -2004,23 +1967,8 @@ class _SettingsPageState extends State<SettingsPage>
             title: Text(Translations.of(context).trans('exportingbookmark')),
             trailing: const Icon(Icons.keyboard_arrow_right),
             onTap: () async {
-              late final dir;
-              late final bookmarkDatabaseFile;
-              if(Platform.isAndroid || Platform.isIOS) {
-                dir = Platform.isIOS
-                  ? await getApplicationSupportDirectory()
-                  : (await getApplicationDocumentsDirectory());
-                bookmarkDatabaseFile = File('${dir.path}/user.db');
-              } else if(Platform.isLinux){
-                var home = '';
-                Platform.environment.forEach((key, value) {
-                  if(key == 'HOME'){
-                    home = value;
-                  }
-                });
-                dir = '${home}/.violet';
-                bookmarkDatabaseFile = File('${dir}/user.db');
-              }
+              final dir = await DefaultPathProvider.getSupportDirectory();
+              final bookmarkDatabaseFile = File('${dir}/user.db');
 
               if (Platform.isAndroid) {
                 await PlatformMiscMethods.instance.exportFile(
diff --git a/lib/pages/settings/tag_rebuild_page.dart b/lib/pages/settings/tag_rebuild_page.dart
index 4b24dd75b..5db154a99 100644
--- a/lib/pages/settings/tag_rebuild_page.dart
+++ b/lib/pages/settings/tag_rebuild_page.dart
@@ -9,6 +9,7 @@ import 'package:path_provider/path_provider.dart';
 import 'package:violet/component/hitomi/hitomi.dart';
 import 'package:violet/database/query.dart';
 import 'package:violet/locale/locale.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
 
@@ -354,19 +355,7 @@ class _TagRebuildPageState extends State<TagRebuildPage> {
         final subdir = Platform.isAndroid ? '/data' : '';
 
 
-        late final directory;
-        if(Platform.isAndroid || Platform.isIOS){
-          var d = await getApplicationDocumentsDirectory();
-          directory = d.path;
-        } else if(Platform.isLinux){
-          var home = '';
-          Platform.environment.forEach((key, value) {
-            if(key == 'HOME'){
-              home = value;
-            }
-          });
-          directory = '${home}/.violet';
-        }
+        final directory  = await DefaultPathProvider.getDocumentsDirectory();
         final path1 = File('${directory}$subdir/index.json');
         if (path1.existsSync()) path1.deleteSync();
         path1.writeAsString(jsonEncode(index));
diff --git a/lib/pages/splash/splash_page.dart b/lib/pages/splash/splash_page.dart
index 8d433e6d5..8b6026397 100644
--- a/lib/pages/splash/splash_page.dart
+++ b/lib/pages/splash/splash_page.dart
@@ -32,6 +32,7 @@ import 'package:violet/other/named_color.dart';
 import 'package:violet/pages/database_download/database_download_page.dart';
 import 'package:violet/pages/settings/settings_page.dart';
 import 'package:violet/script/script_manager.dart';
+import 'package:violet/settings/path.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/variables.dart';
 import 'package:violet/version/sync.dart';
@@ -569,19 +570,7 @@ class _SplashPageState extends State<SplashPage> {
       }
     }
     if (widget.switching) {
-      var dir;
-      if(Platform.isAndroid || Platform.isIOS){
-        var d = await getApplicationDocumentsDirectory();
-        dir = d.path;
-      } else if(Platform.isLinux){
-        var home = '';
-        Platform.environment.forEach((key, value) {
-          if(key == 'HOME'){
-            home = value;
-          }
-        });
-        dir = '${home}/.violet';
-      }
+      var dir = await DefaultPathProvider.getDocumentsDirectory();
       try {
         await ((await openDatabase('${dir}/data/data.db')).close());
         await deleteDatabase('${dir}/data/data.db');
diff --git a/lib/variables.dart b/lib/variables.dart
index 6071f2c4e..cdb007621 100644
--- a/lib/variables.dart
+++ b/lib/variables.dart
@@ -5,6 +5,7 @@ import 'dart:io';
 import 'dart:math';
 
 import 'package:path_provider/path_provider.dart';
+import 'package:violet/settings/path.dart';
 
 class Variables {
   static late String applicationDocumentsDirectory;
@@ -12,7 +13,7 @@ class Variables {
 
   static Future<void> init() async {
     applicationDocumentsDirectory =
-        (await getApplicationDocumentsDirectory()).path;
+        (await DefaultPathProvider.getDocumentsDirectory());
   }
 
   static double statusBarHeight = 0;