🎯 Unity大型项目资源管理:低端机检测后自动切换资源框架(大厂风格)
🧩 框架目标
-
✅ 启动时检测机型性能,判定设备等级
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✅ 同一资源有高配/中配/低配不同压缩格式
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✅ 根据设备等级,加载对应资源包(AB)
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✅ 支持动态切换(可用来切换特效/贴图分辨率/模型LOD)
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✅ 保证:
- 📦 包体小(AB按需拆分)
- 🚀 加载快(AB有版本管理)
- 🎯 体验好(资源按需降级)
🧩 框架结构概览
DeviceLevelDetector (设备检测器)↓
ResourceVersionManager(资源版本管理)↓
AssetBundleLoader(AB加载器)↓
Resource (Texture/Model/Shader/Prefab)
🧩 核心概念
模块 | 作用 |
---|---|
DeviceLevelDetector | 启动时检测设备性能,判定设备等级 |
ResourceVersionManager | 根据设备等级,确定要加载的资源版本(高配/中配/低配) |
AssetBundleLoader | 按需加载正确版本的AssetBundle(带缓存机制、异步加载) |
版本化资源命名规则 | 每份资源分高/中/低版本,按规则命名: xxx_high.ab , xxx_mid.ab , xxx_low.ab |
✅ 低端机检测器(DeviceLevelDetector)
(同之前提供的)
→ 返回设备等级:Low / Mid / High / Ultra
✅ 资源版本管理器(ResourceVersionManager)
public class ResourceVersionManager
{public enum DeviceLevel{Low,Mid,High,Ultra}private static DeviceLevel _deviceLevel;private static Dictionary<string, string> _resourceMap = new Dictionary<string, string>();public static void Init(){_deviceLevel = DeviceLevelDetector.GetDeviceLevel();Debug.Log($"[ResourceVersionManager] Device Level: {_deviceLevel}");}// 根据资源名返回对应版本的资源路径public static string GetResourcePath(string baseName){if (_resourceMap.TryGetValue(baseName, out var path)){return path;}string suffix = GetSuffix();string versionedName = $"{baseName}_{suffix}";_resourceMap[baseName] = versionedName;return versionedName;}private static string GetSuffix(){switch (_deviceLevel){case DeviceLevel.Low: return "low";case DeviceLevel.Mid: return "mid";case DeviceLevel.High:case DeviceLevel.Ultra: return "high";default: return "mid";}}
}
✅ AB加载器(AssetBundleLoader)
using System.Collections;
using UnityEngine;public class AssetBundleLoader : MonoBehaviour
{private string abBasePath = Application.streamingAssetsPath + "/AssetBundles/";public IEnumerator LoadAssetAsync<T>(string baseName, string assetName, System.Action<T> onLoaded) where T : UnityEngine.Object{string versionedName = ResourceVersionManager.GetResourcePath(baseName);string abPath = abBasePath + versionedName;AssetBundleCreateRequest abRequest = AssetBundle.LoadFromFileAsync(abPath);yield return abRequest;AssetBundle bundle = abRequest.assetBundle;if (bundle == null){Debug.LogError($"[AssetBundleLoader] Failed to load AB: {abPath}");yield break;}AssetBundleRequest assetRequest = bundle.LoadAssetAsync<T>(assetName);yield return assetRequest;if (assetRequest.asset != null){onLoaded?.Invoke(assetRequest.asset as T);}else{Debug.LogError(