TapCommon-Unity/Runtime/Internal/UI/Base/MonoSingleton.cs

102 lines
2.3 KiB
C#

using System;
using UnityEngine;
namespace TapTap.UI
{
public class MonoSingleton<T> : MonoBehaviour where T : Component
{
private static T _instance;
public static T Instance
{
get
{
if (_instance == null && Application.isPlaying)
{
CreateInstance();
}
return _instance;
}
}
private static void CreateInstance()
{
Type theType = typeof(T);
_instance = (T)FindObjectOfType(theType);
if (_instance == null)
{
var go = new GameObject(typeof(T).Name);
_instance = go.AddComponent<T>();
GameObject rootObj = GameObject.Find("TapSDKSingletons");
if (rootObj == null)
{
rootObj = new GameObject("TapSDKSingletons");
DontDestroyOnLoad(rootObj);
}
go.transform.SetParent(rootObj.transform);
}
}
public static void DestroyInstance()
{
if (_instance != null)
{
Destroy(_instance.gameObject);
}
}
public static bool HasInstance()
{
return _instance != null;
}
protected virtual void Awake()
{
if (_instance != null && _instance.gameObject != gameObject)
{
if (Application.isPlaying)
{
Destroy(gameObject);
}
else
{
DestroyImmediate(gameObject); // UNITY_EDITOR
}
return;
}
else if (_instance == null)
{
_instance = GetComponent<T>();
}
DontDestroyOnLoad(gameObject);
Init();
}
protected virtual void OnDestroy()
{
Uninit();
if (_instance != null && _instance.gameObject == gameObject)
{
_instance = null;
}
}
public virtual void Init()
{
}
public virtual void Uninit()
{
}
}
}