1 files changed, 35 insertions, 0 deletions
diff --git a/lib/settings/preferences.dart b/lib/settings/preferences.dart
new file mode 100644
index 0000000..3c0ef5d
--- /dev/null
+++ b/lib/settings/preferences.dart
@@ -0,0 +1,35 @@
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../settings/themes.dart';
+
+class Preferences {
+  static SharedPreferences? _prefs;
+
+  static Future<SharedPreferences> get prefs async {
+    _prefs ??= await SharedPreferences.getInstance();
+    return _prefs!;
+  }
+
+  static Future<ThemeData?> getTheme() async {
+    switch ((await prefs).getString('theme')) {
+      case 'light':
+        return ThemeSettings.lightTheme;
+      case 'dark':
+        return ThemeSettings.darkTheme;
+    }
+    return null;
+  }
+
+  static void setTheme(ThemeData? theme) {
+    prefs.then((p) {
+      if (theme == ThemeSettings.lightTheme) {
+        p.setString('theme', 'light');
+      } else if (theme == ThemeSettings.darkTheme) {
+        p.setString('theme', 'dark');
+      } else {
+        p.remove('theme');
+      }
+    });
+  }
+}