ResourceManager.cs📄

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

/// <summary>
/// 资源加载模块
/// 
/// 1.异步加载
/// 2.委托和 lambda表达式
/// 3.协程
/// 4.泛型
/// </summary>
public class ResourceManager : Singleton<ResourceManager>
{
    public T Load<T>(string path) where T : Object
    {
        T res=Resources.Load<T>(path);
        //这里为了外部方便如果是加载实例化物体，我们帮外部进行实例化，后将引用给外部
        if (res is GameObject)
        {
            return GameObject.Instantiate(res);
        }
        else
        {
            return res;
        }
    }
    public void LoadAsync<T>(string path, UnityAction<T> callback) where T : Object
    {
        //开启异步加载的协程
        MonoManager.Instance.StartCoroutine(ReallyLoadAsync(path, callback));
    }
    //真正的协同程序函数  用于开启异步加载对应的资源
    private IEnumerator ReallyLoadAsync<T>(string path, UnityAction<T> callback) where T : Object
    {
        ResourceRequest r = Resources.LoadAsync<T>(path);
        yield return r;

        if (r.asset is GameObject)
            callback(GameObject.Instantiate(r.asset) as T);
        else
            callback(r.asset as T);
    }
}