addToListString method
Implementation
void addToListString(var key, String value) async {
SharedPreferences sharedPreferences = await getSharedPreferencesInstance();
try {
List<String>? lS = sharedPreferences.getStringList(key);
lS?.add(value);
sharedPreferences.setStringList(key, lS!);
} catch (e) {
throw ("Problem in adding " + value + "to the String List, the error was" + e.toString());
}
}