1 files changed, 20 insertions, 21 deletions

diff --git a/lib/screens/level_selection.dart b/lib/screens/level_selection.dart
index 5984e65..0987063 100644
--- a/lib/screens/level_selection.dart
+++ b/lib/screens/level_selection.dart
@@ -17,36 +17,35 @@ class LevelSelection extends StatefulWidget {
 }
 
 class _LevelSelectionState extends State<LevelSelection> {
-  String? stepmaniaCoursesPath;
-  List<Simfile> stepmaniaCoursesFolders = [];
-  List<Simfile> stepmaniaCoursesFoldersFiltered = [];
-  String searchString = '';
+  String? _stepmaniaCoursesPath;
+  List<Simfile> _stepmaniaCoursesFolders = [];
+  List<Simfile> _stepmaniaCoursesFoldersFiltered = [];
 
   @override
   void initState() {
     super.initState();
-    loadFolderPath();
+    _loadFolderPath();
   }
 
   /// gets folder path from persistent storage and updates state with loaded simfiles
-  Future<void> loadFolderPath() async {
+  Future<void> _loadFolderPath() async {
     SharedPreferences prefs = await SharedPreferences.getInstance();
     final String? stepmaniaCoursesPathSetting =
         prefs.getString('stepmania_courses');
 
     if (stepmaniaCoursesPathSetting == null) return;
     List<Simfile> stepmaniaCoursesFoldersFuture =
-        await listFilesAndFolders(stepmaniaCoursesPathSetting);
+        await _listFilesAndFolders(stepmaniaCoursesPathSetting);
 
     setState(() {
-      stepmaniaCoursesPath = stepmaniaCoursesPathSetting;
-      stepmaniaCoursesFolders = stepmaniaCoursesFoldersFuture;
-      stepmaniaCoursesFoldersFiltered = stepmaniaCoursesFoldersFuture;
+      _stepmaniaCoursesPath = stepmaniaCoursesPathSetting;
+      _stepmaniaCoursesFolders = stepmaniaCoursesFoldersFuture;
+      _stepmaniaCoursesFoldersFiltered = stepmaniaCoursesFoldersFuture;
     });
   }
 
   /// open folder selection dialog and save selected folder in persistent storage
-  Future<void> selectFolder() async {
+  Future<void> _selectFolder() async {
     await Permission.manageExternalStorage.request();
     String? selectedFolder = await FilePicker.platform.getDirectoryPath();
 
@@ -55,12 +54,12 @@ class _LevelSelectionState extends State<LevelSelection> {
       SharedPreferences prefs = await SharedPreferences.getInstance();
       await prefs.setString('stepmania_courses', selectedFolder);
 
-      loadFolderPath();
+      _loadFolderPath();
     }
   }
 
   /// load all simfiles from a [directoryPath]
-  Future<List<Simfile>> listFilesAndFolders(String directoryPath) async {
+  Future<List<Simfile>> _listFilesAndFolders(String directoryPath) async {
     final directory = Directory(directoryPath);
     try {
       // List all files and folders in the directory
@@ -90,9 +89,9 @@ class _LevelSelectionState extends State<LevelSelection> {
   }
 
   /// filter stepmaniaCoursesFolders based on [input]
-  void filterLevels(String input) {
+  void _filterLevels(String input) {
     setState(() {
-      stepmaniaCoursesFoldersFiltered = stepmaniaCoursesFolders
+      _stepmaniaCoursesFoldersFiltered = _stepmaniaCoursesFolders
           .where((simfile) => simfile.tags["TITLE"]!
               .toLowerCase()
               .contains(input.toLowerCase()))
@@ -119,9 +118,9 @@ class _LevelSelectionState extends State<LevelSelection> {
         ],
       ),
       body: Builder(builder: (context) {
-        if (stepmaniaCoursesPath == null) {
+        if (_stepmaniaCoursesPath == null) {
           return Text('Add a Directory with Stepmania Songs on \'+\'');
-        } else if (stepmaniaCoursesFolders.isEmpty) {
+        } else if (_stepmaniaCoursesFolders.isEmpty) {
           return Text(
               'Folder empty. Add Stepmania Songs to Folder or select a different folder on \'+\'');
         } else {
@@ -131,7 +130,7 @@ class _LevelSelectionState extends State<LevelSelection> {
                 padding:
                     const EdgeInsets.symmetric(horizontal: 16.0, vertical: 0.0),
                 child: TextField(
-                  onChanged: filterLevels,
+                  onChanged: _filterLevels,
                   decoration: InputDecoration(
                       // icon: Icon(Icons.search),
                       hintText: 'Search'),
@@ -139,11 +138,11 @@ class _LevelSelectionState extends State<LevelSelection> {
               ),
               Expanded(
                 child: ListView.separated(
-                  itemCount: stepmaniaCoursesFoldersFiltered.length,
+                  itemCount: _stepmaniaCoursesFoldersFiltered.length,
                   separatorBuilder: (BuildContext context, int index) =>
                       const Divider(),
                   itemBuilder: (context, index) {
-                    Simfile simfile = stepmaniaCoursesFoldersFiltered[index];
+                    Simfile simfile = _stepmaniaCoursesFoldersFiltered[index];
                     return LevelListEntry(simfile: simfile);
                   },
                 ),
@@ -154,7 +153,7 @@ class _LevelSelectionState extends State<LevelSelection> {
       }),
       floatingActionButton: FloatingActionButton(
           onPressed: () {
-            selectFolder();
+            _selectFolder();
           },
           child: Icon(Icons.add)),
     );