public IEnumerator LoadAssetAsync <T>(string url, Action <T> callback) where T : Object
{
string path = url;
string localPath = CacheManager.instance.GetLocalPath(url);
if (!string.IsNullOrEmpty(localPath))
{
path = localPath;
}
//Debug.Log("==开始使用WWW下载==:" + path);
path = FilePathTools.normalizePath(path);
WWW www = new WWW(path);
yield return(www);
if (string.IsNullOrEmpty(www.error))
{
object res;
Type type = typeof(T);
if (type == typeof(Texture2D))
{
Texture2D tex = new Texture2D(4, 4);
www.LoadImageIntoTexture(tex);
res = tex;
}
else if (type == typeof(AssetBundle))
{
res = www.assetBundle;
}
else if (type == typeof(string))
{
res = www.text;
}
else if (type == typeof(TextAsset))
{
res = www.text;
}
else
{
res = www.bytes;
}
CacheManager.instance.AddCache(url, www.bytes);
www.Dispose();
callback((T)res);
}
else
{
Debug.Log(url);
Debug.Log(www.error);
www.Dispose();
}
}
public void LoadAssetWithWWW(string url, Action <WWW> callback)
{
string path = url;
path = FilePathTools.normalizePath(path);
queue.Enqueue(() =>
{
TryClearCache();
StartCoroutine(LoadWithWWW(url, callback));
});
}
/// <summary>
/// 加载一个本地资源（file）
/// </summary>
/// <param name="path"></param>
public void LoadAsset <T>(string url, Action <T> callback, bool isCache = true)
{
string path = url;
path = FilePathTools.normalizePath(path);
//为了保证后请求的图片就在后面刷新，避免列表复用时下载没结束被新的缓存图片覆盖，加载结束又被之前的图片覆盖掉，这里即使有缓存图片也要加入队列排队
queue.Enqueue(() =>
{
TryClearCache();
StartCoroutine(loadAsync <T>(path, callback, isCache));
});
}
/// <summary>
/// 加载一个本地资源（file）
/// </summary>
/// <param name="path"></param>
public void LoadAsset <T>(string url, Action <T> callback) where T : Object
{
string path = url;
path = FilePathTools.normalizePath(path);
CacheObject co;
if (callback != null && dicCacheObject.TryGetValue(path, out co) && co != null)
{
callback(co.obj as T);
co.time = Time.time;
}
else
{
queue.Enqueue(() =>
{
TryClearCache();
StartCoroutine(loadAsync <T>(path, callback));
});
}
}
/// <summary>
/// 异步加载资源
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="path">资源的相对路径</param>
/// <param name="callback"></param>
/// <returns></returns>
public IEnumerator LoadAssetAsync <T>(string path, Action <T> callback) where T : Object
{
path = FilePathTools.normalizePath(path);
Debug.Log("===AssetBundleLoader.loadAsync:" + path);
string assetBundleName = path;
path = FilePathTools.root + path;//改成绝对路径
#if UNITY_EDITOR
bool isUseAssetBundle = GameSetting.isUseAssetBundle;
if (!isUseAssetBundle)
{
path = FilePathTools.getRelativePath(path); //绝对路径转为相对Assets文件夹的相对路径
Object Obj = UnityEditor.AssetDatabase.LoadAssetAtPath(path, typeof(T));
if (Obj == null)
{
Debug.LogError("Asset not found at path:" + path);
}
callback((T)Obj);
yield break;
}
#endif
//打的ab包都资源名称和文件名都是小写的
AssetBundleRequest assetRequest;
AssetBundleCreateRequest createRequest;
//1加载Manifest文件
if (manifest == null)
{
string manifestPath = FilePathTools.manifestPath;
Debug.Log("start load Manifest:" + manifestPath);
createRequest = AssetBundle.LoadFromFileAsync(manifestPath);
yield return(createRequest);
if (createRequest.isDone)
{
AssetBundle manifestAB = createRequest.assetBundle;
yield return(assetRequest = manifestAB.LoadAssetAsync <AssetBundleManifest>("AssetBundleManifest"));
manifest = assetRequest.asset as AssetBundleManifest;
manifestAB.Unload(false);
}
else
{
Debug.Log("Manifest加载出错");
}
}
//2获取文件依赖列表
string[] dependencies = manifest.GetAllDependencies(assetBundleName);
//3加载依赖资源
Dictionary <string, AssetBundle> dependencyAssetBundles = new Dictionary <string, AssetBundle>();
//Debug.Log("---开始加载依赖资源:" + dependencies.Length.ToString());
foreach (string fileName in dependencies)
{
string dependencyPath = FilePathTools.root + "/" + fileName;
Debug.Log("开始加载依赖资源:" + dependencyPath);
createRequest = AssetBundle.LoadFromFileAsync(dependencyPath);
yield return(createRequest);
if (createRequest.isDone)
{
dependencyAssetBundles.Add(dependencyPath, createRequest.assetBundle);
}
else
{
Debug.Log("加载依赖资源出错");
}
}
//4加载目标资源
obj = null;
Debug.Log("---开始加载目标资源:" + path);
createRequest = AssetBundle.LoadFromFileAsync(path);
yield return(createRequest);
List <AssetBundle> abList = new List <AssetBundle>();
if (createRequest.isDone)
{
AssetBundle assetBundle = createRequest.assetBundle;
yield return(assetRequest = assetBundle.LoadAssetAsync(Path.GetFileNameWithoutExtension(path), typeof(T)));
obj = assetRequest.asset;
//5释放目标资源
//Debug.Log("---释放目标资源:" + path);
abList.Add(assetBundle);
}
else
{
Debug.Log("加载目标资源出错 ");
}
if (dependencyAssetBundles != null)
{
//6释放依赖资源
foreach (string key in dependencyAssetBundles.Keys)
{
//Debug.Log("---释放依赖资源:" + key);
AssetBundle dependencyAB = dependencyAssetBundles[key];
abList.Add(dependencyAB);
}
}
callback((T)obj);
UnloadAssetbundle(abList);
//Debug.Log("---end loadAsync:AssetBundleLoader.loadAsync" + path);
yield return(null);
}
/// <summary>
/// 加载资源
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="path">资源的相对路径</param>
/// <returns></returns>
public T LoadAsset <T>(string path) where T : Object
{
path = FilePathTools.normalizePath(path);
Debug.Log("===AssetBundleLoader.Load:" + path);
string assetBundleName = path;
path = FilePathTools.root + path;//改成绝对路径
#if UNITY_EDITOR
if (!GameSetting.isUseAssetBundle)
{
path = FilePathTools.getRelativePath(path);
Object Obj = UnityEditor.AssetDatabase.LoadAssetAtPath(path, typeof(T));
if (Obj == null)
{
Debug.LogError("Asset not found at path:" + path);
}
return((T)Obj);
}
#endif
//打的ab包都资源名称和文件名都是小写的
//1加载Manifest文件
if (manifest == null)
{
string manifestPath = FilePathTools.manifestPath;
Debug.Log("start load Manifest:" + manifestPath);
AssetBundle manifestAB = AssetBundle.LoadFromFile(manifestPath);
manifest = manifestAB.LoadAsset <AssetBundleManifest>("AssetBundleManifest");
manifestAB.Unload(false);
}
//2获取文件依赖列表
string[] dependencies = manifest.GetAllDependencies(assetBundleName);
//3加载依赖资源
Dictionary <string, AssetBundle> dependencyAssetBundles = new Dictionary <string, AssetBundle>();
//Debug.Log("---开始加载依赖资源:" + dependencies.Length.ToString());
foreach (string fileName in dependencies)
{
string dependencyPath = FilePathTools.root + "/" + fileName;
Debug.Log("开始加载依赖资源:" + dependencyPath);
dependencyAssetBundles.Add(dependencyPath, AssetBundle.LoadFromFile(dependencyPath));
}
//4加载目标资源
//Object obj = null;
Debug.Log("---开始加载目标资源:" + path);
AssetBundle assetBundle = AssetBundle.LoadFromFile(path);
obj = assetBundle.LoadAsset <T>(Path.GetFileNameWithoutExtension(path));;
//5释放目标资源
//Debug.Log("---释放目标资源:" + path);
List <AssetBundle> abList = new List <AssetBundle>();
abList.Add(assetBundle);
if (dependencyAssetBundles != null)
{
//6释放依赖资源
foreach (string key in dependencyAssetBundles.Keys)
{
//Debug.Log("---释放依赖资源:" + key);
AssetBundle dependencyAB = dependencyAssetBundles[key];
abList.Add(dependencyAB);
}
}
UnloadAssetbundle(abList);
return((T)obj);
}
private IEnumerator loadAsync <T>(string path, Action <T> callback) where T : Object
{
CacheObject co;
if (callback != null && dicCacheObject.TryGetValue(path, out co) && co != null)
{
callback(co.obj as T);
co.time = Time.time;
yield break;
}
isLoading = true;
path = FilePathTools.normalizePath(path);
Debug.Log("===AssetBundleLoader.loadAsync:" + path);
string assetBundleName = FilePathTools.getAssetBundleNameWithPath(path);
bool isUseAssetBundle = GameSetting.isUseAssetBundle;
if (!isUseAssetBundle)
{
#if UNITY_EDITOR
path = FilePathTools.getRelativePath(path);
Object Obj = UnityEditor.AssetDatabase.LoadAssetAtPath(path, typeof(T));
if (Obj == null)
{
Debug.LogError("Asset not found at path:" + path);
}
callback((T)Obj);
#endif
}
else
{
//打的ab包都资源名称和文件名都是小写的
AssetBundleRequest assetRequest;
AssetBundleCreateRequest createRequest;
//1加载Manifest文件
if (manifest == null)
{
string manifestPath = FilePathTools.manifestPath;
Debug.Log("start load Manifest:" + manifestPath);
createRequest = AssetBundle.LoadFromFileAsync(manifestPath);
yield return(createRequest);
if (createRequest.isDone)
{
AssetBundle manifestAB = createRequest.assetBundle;
yield return(assetRequest = manifestAB.LoadAssetAsync <AssetBundleManifest>("AssetBundleManifest"));
manifest = assetRequest.asset as AssetBundleManifest;
manifestAB.Unload(false);
}
else
{
Debug.Log("Manifest加载出错");
}
}
//2获取文件依赖列表
string[] dependencies = manifest.GetAllDependencies(assetBundleName);
//3加载依赖资源
Dictionary <string, AssetBundle> dependencyAssetBundles = new Dictionary <string, AssetBundle>();
//Debug.Log("---开始加载依赖资源:" + dependencies.Length.ToString());
foreach (string fileName in dependencies)
{
string dependencyPath = FilePathTools.root + "/" + fileName;
if (!GameMainManager.instance.preloader.Contains(dependencyPath))
{
Debug.Log("开始加载依赖资源:" + dependencyPath);
createRequest = AssetBundle.LoadFromFileAsync(dependencyPath);
yield return(createRequest);
if (createRequest.isDone)
{
dependencyAssetBundles.Add(dependencyPath, createRequest.assetBundle);
}
else
{
Debug.Log("加载依赖资源出错");
}
}
}
//4加载目标资源
Object obj = null;
Debug.Log("---开始加载目标资源:" + path);
createRequest = AssetBundle.LoadFromFileAsync(path);
yield return(createRequest);
List <AssetBundle> abList = new List <AssetBundle>();
if (createRequest.isDone)
{
AssetBundle assetBundle = createRequest.assetBundle;
yield return(assetRequest = assetBundle.LoadAssetAsync(Path.GetFileNameWithoutExtension(path), typeof(T)));
obj = assetRequest.asset;
AddCache(path, obj);
//5释放目标资源
//Debug.Log("---释放目标资源:" + path);
abList.Add(assetBundle);
}
else
{
Debug.Log("加载目标资源出错 ");
}
if (dependencyAssetBundles != null)
{
//6释放依赖资源
foreach (string key in dependencyAssetBundles.Keys)
{
//Debug.Log("---释放依赖资源:" + key);
AssetBundle dependencyAB = dependencyAssetBundles[key];
abList.Add(dependencyAB);
}
}
callback((T)obj);
StartCoroutine(UnloadAssetbundle(abList));
}
//Debug.Log("---end loadAsync:AssetBundleLoader.loadAsync" + path);
yield return(null);
isLoading = false;
}
private IEnumerator loadAsync <T>(string url, Action <T> callback, bool isCache)
{
string path = url;
if (isCache)
{
CacheObject obj;
if (callback != null && cache.TryGetValue(url, out obj) && obj != null)
{
callback((T)obj.obj);
obj.time = Time.time;
yield break;
}
string localPath = CacheManager.instance.GetLocalPath(url);
if (!string.IsNullOrEmpty(localPath))
{
path = localPath;
}
}
isLoading = true;
//Debug.Log("==开始使用WWW下载==:" + path);
path = FilePathTools.normalizePath(path);
WWW www = new WWW(path);
yield return(www);
if (string.IsNullOrEmpty(www.error))
{
object res;
Type type = typeof(T);
if (type == typeof(Texture2D))
{
Texture2D tex = new Texture2D(4, 4);
www.LoadImageIntoTexture(tex);
res = tex;
}
else if (type == typeof(AssetBundle))
{
res = www.assetBundle;
}
else if (type == typeof(string))
{
res = www.text;
}
else
{
res = www.bytes;
}
if (isCache)
{
if (!cache.ContainsKey(url))
{
AddCache(url, res);
}
CacheManager.instance.AddCache(url, www.bytes);
}
www.Dispose();
isLoading = false;
callback((T)res);
}
else
{
Debug.Log(url);
Debug.Log(www.error);
www.Dispose();
isLoading = false;
}
}
