getTheme function
Implementation
Future<Map<String, dynamic>> getTheme() async {
if (theme != null) {
return theme ?? {};
}
final SharedPreferences prefs = await SharedPreferences.getInstance();
final String? themeFromStorage = prefs.getString(themeKey);
if (themeFromStorage != null && themeFromStorage.length > 5) {
theme = json.decode(themeFromStorage);
}
return theme ?? {};
}