OnDemandResourcesRequest

描述

表示按需加载资源 (ODR) 的请求。它是一个 AsyncOperation，可在协同程序中生成。

**注意**：仅适用于 iOS。

创建 OnDemandResourcesRequest 等同于调用 NSBundleResourceRequest.beginAccessingResourcesWithCompletionHandler。该请求将使按需加载资源保持活动状态，直到调用 Dispose() 或者垃圾回收器收集该请求对象为止，这等同于调用 NSBundleResourceRequest.endAccessingResources。

using UnityEngine;
using UnityEngine.iOS;
using System;
using System.Collections;

public static class Loader
{
    public static IEnumerator LoadAsset(string resourceName)
    {
        // Create the request
        var request = OnDemandResources.PreloadAsync(new string[] { "Asset's ODR tag" });

        // Wait until request is completed
        yield return request;

        // Check for errors
        if (request.error != null)
            throw new Exception("ODR request failed: " + request.error);

        // Get path to the resource and use it
        var path = request.GetResourcePath(resourceName);
        Debug.Log(path);

        // Call Dispose() when resource is no longer needed.
        request.Dispose();
    }
}

变量

公共函数

继承的成员