fixes

android/app/src/main/AndroidManifest.xml

@@ -11,7 +11,8 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
-            android:windowSoftInputMode="adjustResize">
+            android:windowSoftInputMode="adjustResize"
+            android:enableOnBackInvokedCallback="true">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
                  while the Flutter UI initializes. After that, this theme continues

android/settings.gradle

@@ -18,7 +18,7 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version "8.1.0" apply false
+    id "com.android.application" version "8.2.2" apply false
     id "org.jetbrains.kotlin.android" version "1.8.22" apply false
 }
 

lib/main.dart

@@ -97,14 +97,56 @@ class _NoteListScreenState extends State<NoteListScreen> {
     _loadNotes();
     searchController.addListener(() {
       final text = searchController.text.trim();
+
       if (text.startsWith(':')) {
         _handleCommand(text);
       } else {
-        _filterNotes();
+        _filterNotes(); // Only filter, do NOT create a note here!
       }
     });
   }
 
+  bool _isNewNote(String title) {
+    final safeTitle = _sanitizeFilename(title);
+    return !notes.any((note) => note.uri.pathSegments.last == '$safeTitle.md');
+  }
+
+  Future<void> _createNewNote(String title) async {
+    final dir = await getApplicationDocumentsDirectory();
+    final notesDir = Directory('${dir.path}/notes');
+
+    if (!notesDir.existsSync()) {
+      notesDir.createSync(recursive: true);
+    }
+
+    final safeTitle = _sanitizeFilename(title);
+    final newNote = File('${notesDir.path}/$safeTitle.md');
+
+    if (!newNote.existsSync()) {
+      newNote.writeAsStringSync('# $title\n\n'); // Pre-fill with title
+      setState(() {
+        notes.add(newNote);
+        filteredNotes.add(newNote);
+      });
+
+      Navigator.push(
+        context,
+        MaterialPageRoute(
+          builder: (context) => NoteEditorScreen(
+            note: newNote,
+            isDarkMode: widget.isDarkMode,
+          ),
+        ),
+      );
+    }
+  }
+
+  String _sanitizeFilename(String title) {
+    return title
+        .replaceAll(RegExp(r'[<>:"/\\|?*]'), '') // Remove invalid characters
+        .trim();
+  }
+
   void _handleCommand(String text) {
     switch (text) {
       case ':tags':
@@ -228,7 +270,9 @@ class _NoteListScreenState extends State<NoteListScreen> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: TextField(
+        title: Padding(
+          padding: EdgeInsets.symmetric(horizontal: 15),
+          child: TextField(
             enableInteractiveSelection: true,
             autocorrect: false,
             textInputAction: TextInputAction.done,
@@ -238,19 +282,29 @@ class _NoteListScreenState extends State<NoteListScreen> {
               border: InputBorder.none,
             ),
             style: GoogleFonts.ibmPlexMono(color: Colors.grey[300]),
+            onSubmitted: (text) {
+              final trimmedText = text.trim();
+              if (trimmedText.isNotEmpty && _isNewNote(trimmedText)) {
+                _createNewNote(trimmedText);
+                searchController.clear(); // Clears the search field after creation
+              }
+            },
+          ),
         ),
         actions: [
           IconButton(
-            icon: Icon(widget.showTags ? Icons.tag : Icons.circle_outlined),
+            icon: Icon(!widget.showTags ? Icons.tag : Icons.horizontal_rule),
             onPressed: widget.toggleTags,
           ),
-          IconButton(
-            icon: Icon(Icons.brightness_6),
-            onPressed: () => widget.toggleTheme(!widget.isDarkMode),
-          ),
         ],
       ),
-      body: ListView.builder(
+      floatingActionButton: IconButton(
+        icon: Icon(!widget.isDarkMode ? Icons.dark_mode : Icons.light_mode),
+        onPressed: () => widget.toggleTheme(!widget.isDarkMode),
+      ),
+      body: Padding(
+        padding: EdgeInsets.symmetric(horizontal: 15),
+        child: ListView.builder(
           itemCount: filteredNotes.length,
           itemBuilder: (context, index) {
             final noteFile = filteredNotes[index];
@@ -287,6 +341,7 @@ class _NoteListScreenState extends State<NoteListScreen> {
             );
           },
         ),
+      ),
     );
   }
 }