转载：http://blog.csdn.net/lyh916/article/details/45898343
参考链接：http://www.redblack.cn/?p=100
在unity中有两种单例类型，一种是普通单例，即普通c#类，另一种是继承了MonoBehaviour的单例。
普通单例：
[csharp] view plain copy public abstract class CSharpSingletion<T> where T : new() { private static T instance; public static T Instance { get { if (instance == null) { instance = new T(); } return instance; } } }
[csharp] view plain copy using UnityEngine; using System.Collections; public class AudioSingletion : CSharpSingletion<AudioSingletion> { public int i = 1; }
继承了MonoBehaviour的单例：
[csharp] view plain copy using UnityEngine; using System.Collections; public abstract class MonoSingletion<T> : MonoBehaviour where T : MonoBehaviour { private static string rootName = "MonoSingletionRoot"; private static GameObject monoSingletionRoot; private static T instance; public static T Instance { get { if (monoSingletionRoot == null) { monoSingletionRoot = GameObject.Find(rootName); if (monoSingletionRoot == null) Debug.Log("please create a gameobject named " + rootName); } if (instance == null) { instance = monoSingletionRoot.GetComponent<T>(); if (instance == null) instance = monoSingletionRoot.AddComponent<T>(); } return instance; } } }
[csharp] view plain copy using UnityEngine; using System.Collections; public class MusicSingletion : MonoSingletion<MusicSingletion> { public void PrintInfo() { print("Music!!!!!!!!!!"); } }
