Initial commit: Penyerahan final Source code Tugas Akhir

lib/providers/theme_provider.dart

@@ -0,0 +1,60 @@
+import 'package:flutter/material.dart';
+import 'package:initial_folder/theme.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class ThemeProvider with ChangeNotifier {
+  ThemeData _themeData = ThemeClass.darkmode;
+
+  ThemeProvider() {
+    loadTheme();
+  }
+
+  ThemeData get themeData => _themeData;
+
+  set themeData(ThemeData themeData) {
+    _themeData = themeData;
+    notifyListeners();
+  }
+
+  void toggleTheme() {
+    if (_themeData == ThemeClass.lightmode) {
+      themeData = ThemeClass.darkmode;
+      _saveTheme('dark');
+    } else {
+      themeData = ThemeClass.lightmode;
+      _saveTheme('light');
+    }
+  }
+
+  Future<void> loadTheme() async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    String? theme = prefs.getString('theme');
+    if (theme == null) {
+      var brightness =
+          WidgetsBinding.instance.platformDispatcher.platformBrightness;
+
+      if (brightness == Brightness.light) {
+        themeData = ThemeClass.lightmode;
+        _saveTheme('light');
+      } else {
+        themeData = ThemeClass.darkmode;
+        _saveTheme('dark');
+      }
+    } else if (theme == 'dark') {
+      themeData = ThemeClass.darkmode;
+    } else {
+      themeData = ThemeClass.lightmode;
+    }
+    notifyListeners();
+  }
+
+  Future<void> saveCurrentTheme() async {
+    String theme = _themeData == ThemeClass.darkmode ? 'dark' : 'light';
+    await _saveTheme(theme);
+  }
+
+  Future<void> _saveTheme(String theme) async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    await prefs.setString('theme', theme);
+  }
+}