Audio slider doesn't change value

Question

For some reason, my slider and audio resets back to 0 when I stop and play the game after I changed the value. Here is the code, I can't spot anything wrong with it:

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

public class MainAudio : MonoBehaviour {

public Slider slider;

void Awake()
{
    PlayerPrefs.Save ();
    GetComponent<AudioSource> ().volume = PlayerPrefs.GetFloat ("CurVol");
    if (slider)
    slider.value = GetComponent<AudioSource> ().volume;
}
public void VolumeControl(float volumeControl)
{
    GetComponent<AudioSource> ().volume = volumeControl;
    PlayerPrefs.SetFloat ("CurVol", GetComponent<AudioSource> ().volume);
    PlayerPrefs.Save ();
}
}

Answer 1

You can use the Update method to update the current volume.

private void Update()
{
    VolumeControl(slider.value);
}

And use the OnApplicationQuit method to save your current volume to the PlayerPrefs. Receiving the saved volume from the PlayerPrefs in the Awake method can be done like in your code snippet, but without the PlayerPrefs.Save statement.