/*
* 持久话数据
* */
import 'package:shared_preferences/shared_preferences.dart';

class Storage{
  ///存数据
  static Future<void> setData(key, value) async {
    SharedPreferences sp = await SharedPreferences.getInstance();
    if (value is int) {
      await sp.setInt(key, value);
    } else if (value is bool) {
      await sp.setBool(key, value);
    } else if (value is double) {
      await sp.setDouble(key, value);
    } else if (value is String) {
      await sp.setString(key, value);
    } else if (value is List<String>) {
      await sp.setStringList(key, value);
    }
  }

  ///取数据
  ///
  static Future<T?> getData<T>(key) async {
    SharedPreferences sp = await SharedPreferences.getInstance();
    switch(T){
      case int: return (sp.getInt(key) ?? 0) as T;
      case bool: return (sp.getBool(key) ?? false) as T;
      case double: return (sp.getDouble(key) ?? 0.0) as T;
      case String: return (sp.getString(key) ?? '') as T;
      case List: return (sp.getStringList(key) ?? []) as T;
      default: return null;
    }
  }


}