[游戏开发]Unity Task异步方式加载图片

using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.Networking;

public static class LoadHelper
{
    public static Sprite LoadSpriteAsyncResult(string path)
    {
        return LoadAsyncSprite(path).Result;
    }
    
    static async Task<Sprite> LoadAsyncSprite(string url)
    {
        string path = Path.Combine(Application.streamingAssetsPath, url + ".png");
        var getRequest = UnityWebRequest.Get(path);
        await getRequest.SendWebRequest();
        var imgData = getRequest.downloadHandler.data;
        Texture2D tex = new Texture2D(2, 2);
        tex.LoadImage(imgData);
        Vector2 pivot = new Vector2(0.5f, 0.5f);
        Sprite sprite = Sprite.Create(tex, new Rect(0.0f, 0.0f, tex.width, tex.height), pivot, 100.0f);
        return sprite;
    }
    
}

public static class ExtensionMethods
{
    public static TaskAwaiter GetAwaiter(this AsyncOperation asyncOp)
    {
        var tcs = new TaskCompletionSource<object>();
        asyncOp.completed += obj => { tcs.SetResult(null); };
        return ((Task)tcs.Task).GetAwaiter();
    }
}