使用GSON本地存储读取列表

private final String LAW_HOLIDAYS_DATA_GSON = "law_holidays_data_gson";
private List<String> lawHolidays = new ArrayList<String>();

存储数据

Gson gson = new Gson();
String lawHolidaysData = gson.toJson(lawHolidays);
SharedPreferencesUtil.saveString(LAW_HOLIDAYS_DATA_GSON, lawHolidaysData);

读取数据

String lawHolidaysData = SharedPreferencesUtil.getString(LAW_HOLIDAYS_DATA_GSON);
Gson gson = new Gson();
Type listType = new TypeToken<List<String>>() {}.getType();
List<String> list = gson.fromJson(lawHolidaysData, listType);