AIRFLY/Assets/Scripts/PanelSet.cs

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class PanelSet : MonoBehaviour {
    private Button backBtn;
    private Slider musicsli;
    private Slider audiosli;
	// Use this for initialization
	void Start () {
        backBtn = transform.Find("BackBtn").GetComponent<Button>();
        backBtn.onClick.RemoveAllListeners();
        backBtn.onClick.AddListener(backBtnEvent);
        musicsli = transform.Find("MusicSli").GetComponent<Slider>();
        musicsli.value = ScoreManager.instance.BGM;
        audiosli = transform.Find("AudioSli").GetComponent<Slider>();
        audiosli.value = ScoreManager.instance.AM;
    }

    private void backBtnEvent()
    {
        UIManager.instance.CreatePanel("PanelStart");
        UIManager.instance.DestroyPanel("PanelSet");
        PlayerPrefs.SetFloat("BGM",musicsli.value);
        PlayerPrefs.SetFloat("AM",audiosli.value);
    }

    // Update is called once per frame
    void Update () {
        ScoreManager.instance.BGM = musicsli.value;
        ScoreManager.instance.AM = audiosli.value;
	}
}