53 lines
1.4 KiB
Dart
53 lines
1.4 KiB
Dart
|
import 'package:shared_preferences/shared_preferences.dart';
|
||
|
|
|
||
|
|
class StorageService {
|
||
|
|
StorageService._internal();
|
||
|
|
static final StorageService instance = StorageService._internal();
|
||
|
|
|
||
|
|
late final SharedPreferences _prefs;
|
||
|
|
|
||
|
|
/// 启动时调用一次，确保 prefs 已就绪
|
||
|
|
Future<void> init() async {
|
||
|
|
_prefs = await SharedPreferences.getInstance();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// 存储 String
|
||
|
|
Future<bool> setString(String key, String value) =>
|
||
|
|
_prefs.setString(key, value);
|
||
|
|
|
||
|
|
/// 读取 String
|
||
|
|
String? getString(String key) => _prefs.getString(key);
|
||
|
|
|
||
|
|
/// 存储 String 列表
|
||
|
|
Future<bool> setStringList(String key, List<String> value) =>
|
||
|
|
_prefs.setStringList(key, value);
|
||
|
|
|
||
|
|
/// 读取 String 列表
|
||
|
|
List<String>? getStringList(String key) => _prefs.getStringList(key);
|
||
|
|
|
||
|
|
/// 存储 int
|
||
|
|
Future<bool> setInt(String key, int value) => _prefs.setInt(key, value);
|
||
|
|
|
||
|
|
/// 读取 int
|
||
|
|
int? getInt(String key) => _prefs.getInt(key);
|
||
|
|
|
||
|
|
/// 存储 bool
|
||
|
|
Future<bool> setBool(String key, bool value) => _prefs.setBool(key, value);
|
||
|
|
|
||
|
|
/// 读取 bool
|
||
|
|
bool? getBool(String key) => _prefs.getBool(key);
|
||
|
|
|
||
|
|
/// 存储 double
|
||
|
|
Future<bool> setDouble(String key, double value) =>
|
||
|
|
_prefs.setDouble(key, value);
|
||
|
|
|
||
|
|
/// 读取 double
|
||
|
|
double? getDouble(String key) => _prefs.getDouble(key);
|
||
|
|
|
||
|
|
/// 删除单个 key
|
||
|
|
Future<bool> remove(String key) => _prefs.remove(key);
|
||
|
|
|
||
|
|
/// 清空所有
|
||
|
|
Future<bool> clear() => _prefs.clear();
|
||
|
|
}
|