c# - NullReferenceException : Object reference not set to an instance of an object - UNITY SOUNDS

Question

这个问题在这里已经有了答案:





What is a NullReferenceException, and how do I fix it?

(27 个回答)


5年前关闭。




我对统一的声音有疑问。这是我的代码:

[RequireComponent(typeof(AudioSource))]

公共(public)类 SoundManager : MonoBehaviour
{
公共(public)静态 SoundManager 实例；

private AudioSource source;
public Dictionary<SOUND_TYPE,AudioClip> sounds;
public enum SOUND_TYPE
{
    DEATCH,
    CATCHED
}

// Use this for initialization
void Start()
{
    source = GetComponent<AudioSource>();

    loadSounds();
}

// Update is called once per frame
void Update ()
{
}

public void playSound(SOUND_TYPE type)
{
    source.clip = sounds[type];
    source.Play();  
}

public void loadSounds()
{
    //loading sounds
    sounds.Add(SOUND_TYPE.DEATCH, Resources.Load<AudioClip>("Sounds/AccelerationLow"));
}

}

我有一个错误，与 source.Add() 一致.

Error: NullReferenceException: Object reference not set to an instance of an object

我不知道发生了什么以及如何修复它。

Answer 1

您忘记了 sounds 的构造函数:

public Dictionary<SOUND_TYPE,AudioClip> sounds = new Dictionary<SOUND_TYPE,AudioClip>();