Created
June 14, 2015 12:23
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Singleton<T>
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| using System; | |
| namespace com.qingyi | |
| { | |
| public class Singleton<T> | |
| where T : class, new() | |
| { | |
| private static T mUniqueInstance; | |
| public static bool Exists | |
| { | |
| get | |
| { | |
| return Singleton<T>.mUniqueInstance != null; | |
| } | |
| } | |
| public static T Instance | |
| { | |
| get | |
| { | |
| if (Singleton<T>.mUniqueInstance == null) | |
| { | |
| Singleton<T>.mUniqueInstance = Activator.CreateInstance<T>(); | |
| } | |
| return Singleton<T>.mUniqueInstance; | |
| } | |
| set | |
| { | |
| Singleton<T>.mUniqueInstance = value; | |
| } | |
| } | |
| static Singleton() | |
| { | |
| } | |
| public Singleton() | |
| { | |
| if (Singleton<T>.mUniqueInstance != null) | |
| { | |
| throw new InvalidOperationException(string.Concat("Singleton [", typeof(T), "] cannot be manually instantiated.")); | |
| } | |
| } | |
| public static T Instances() | |
| { | |
| if (Singleton<T>.mUniqueInstance == null) | |
| { | |
| Singleton<T>.mUniqueInstance = Activator.CreateInstance<T>(); | |
| if (Singleton<T>.mUniqueInstance == null) | |
| { | |
| } | |
| } | |
| return Singleton<T>.mUniqueInstance; | |
| } | |
| public static void Release() | |
| { | |
| if (Singleton<T>.Instance != null) | |
| { | |
| Singleton<T>.Instance = default(T); | |
| } | |
| } | |
| } | |
| public class SingletonMonoBehaviour<T> : MonoBehaviour | |
| where T : SingletonMonoBehaviour<T> | |
| { | |
| private static SingletonMonoBehaviour<T> uniqueInstance; | |
| public static bool Exists | |
| { | |
| get; | |
| private set; | |
| } | |
| public static T Instance | |
| { | |
| get | |
| { | |
| return (T)SingletonMonoBehaviour<T>.uniqueInstance; | |
| } | |
| } | |
| public SingletonMonoBehaviour() | |
| { | |
| } | |
| protected virtual void Awake() | |
| { | |
| if (SingletonMonoBehaviour<T>.uniqueInstance == null) | |
| { | |
| SingletonMonoBehaviour<T>.uniqueInstance = this; | |
| SingletonMonoBehaviour<T>.Exists = true; | |
| } | |
| else if (SingletonMonoBehaviour<T>.uniqueInstance != this) | |
| { | |
| throw new InvalidOperationException(string.Concat("Cannot have two instances of a SingletonMonoBehaviour : ", typeof(T).ToString(), ".")); | |
| } | |
| } | |
| protected virtual void OnDestroy() | |
| { | |
| if (SingletonMonoBehaviour<T>.uniqueInstance == this) | |
| { | |
| SingletonMonoBehaviour<T>.Exists = false; | |
| SingletonMonoBehaviour<T>.uniqueInstance = null; | |
| } | |
| } | |
| } | |
| } |
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