PlayerPrefsHelper

using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using System.Collections;
using System;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;

public class PlayerPrefsHelper {
	public static void SetList<T>(string key, List<T> list) {
		var b = new BinaryFormatter();
		var m = new MemoryStream();
		b.Serialize(m, list);

		PlayerPrefs.SetString(key, Convert.ToBase64String(m.GetBuffer()));
	}

	public static List<T> GetList<T>(string key) {
		List<T> list;

		var data = PlayerPrefs.GetString(key);

		if(!string.IsNullOrEmpty(data))
		{
			var b = new BinaryFormatter();
			var m = new MemoryStream(Convert.FromBase64String(data));
			list = (List<T>)b.Deserialize(m);
			return list;
		}

		return null;
	}	

	public static void SetBool(string key, bool b) {
		PlayerPrefs.SetInt(key, b ? 1 : 0);
	}

	public static bool GetBool(string key, bool defaultBool = false) {
		return PlayerPrefs.GetInt(key, defaultBool ? 1 : 0) == 1;
	}
}