//Save local values manually.
//･To be saved value is only the 'key & value' pairs (Dictionary <string, string>).
public void SavePrefs()
{
Dictionary <string, string> dic = items.ToDictionary(e => e.key, e => e.value.ToString()); //Duplicate key is not allowed.
XPlayerPrefs.SetDictionary(SaveKey, dic); //compatible 'Param' class
PlayerPrefs.Save();
}
//Set a software volume to PlayerPrefs (*) It does not affect the current software volume
//外部からの設定保存（保存された PlayerPrefs のみ更新：現在の音量には影響しない）
public void SetPrefs(Dictionary <string, int> pref)
{
if (pref != null && pref.Count > 0)
{
XPlayerPrefs.SetDictionary(SaveKey, pref);
}
}
/// <summary>
/// Convert it to JSON format (string type) as a Dictionary and save it in PlayerPrefs
///(*) Param class is basically the same as a dictionary, and it is the same as XPlayerPrefs.SetDictionary(), because content classes (which inherit Dictionary) are handled easily.
///･In JSON, it is stored as a key array and value array (= XPlayerPrefs.TryGetArrayPair() can also be obtained as an array of pairs).
///
/// 辞書として JSON 形式（文字列型）に変換して PlayerPrefs に保存する
///※Param は基本的に辞書と同じでパラメタを簡単に扱うクラス（Dictionary を継承している）ため、内容的には XPlayerPrefs.SetDictionary() と同じ。
///・JSON ではキー配列と値配列として保存される（＝TryGetArrayPair()でペアの配列としても取得できる）。
/// </summary>
/// <param name="key">Save key</param>
/// <param name="param">Save value (Param)</param>
public static void SetPlayerPrefs(string key, Param param)
{
XPlayerPrefs.SetDictionary(key, param);
}
//Save local values manually.
//･To be saved value is only the 'key & value' pairs (Dictionary <string, string>).
public void SavePrefs()
{
XPlayerPrefs.SetDictionary(SaveKey, GetValue()); //compatible 'Param' class
PlayerPrefs.Save();
}
