// 从AssetBundle中加载资源
public void LoadAssetFromBundle(LoaderGroup group, string path, string name, Type type,
GroupLoadedCallback onLoaded,
bool async = true, bool persistent = false,
LoadPriority priority = LoadPriority.Normal)
{
path = path.ToLower();
LoadAssetBundle(group, path, (group1, data) => {
AssetBundleInfo cache = data as AssetBundleInfo;
LoadBundleAsset(group1, cache, name, type, onLoaded, async);
}, async, persistent, true, priority);
}
// ------------------------------------------------------------------------------------------
// 从AssetBundle里加载资源
private void LoadBundleAsset(LoaderGroup group, AssetBundleInfo info, string name, Type type,
GroupLoadedCallback onLoaded,
bool async = true, LoadPriority priority = LoadPriority.Normal)
{
if (info == null || string.IsNullOrEmpty(name))
{
if (onLoaded != null)
{
onLoaded(group, null);
}
return;
}
if (!async)
{
// 同步,直接加载
//Logger.Log(string.Format("-->LoadBundleAsset: {0}", name));
Object asset = info.LoadAsset(name, type);
if (onLoaded != null)
{
onLoaded(group, asset);
}
}
else
{
// 异步,创建一个加载器后加载
BundleAssetLoadParam param = new BundleAssetLoadParam {
Bundle = info.Bundle,
Type = type
};
m_task.AddLoadTask(group, Loader.LoaderType.BundleAsset, name, param, (group1, data1) => {
// 加载回调
if (onLoaded != null)
{
onLoaded(group1, data1);
}
}, true, priority, true);
}
}
// 加载AssetBundle(先从persistentData读,没有找到则从streamingAssets读,带后缀)
private void LoadAssetBundle(LoaderGroup group, string path, GroupLoadedCallback onLoaded,
bool async = true, bool persistent = false, bool manifest = true,
LoadPriority priority = LoadPriority.Normal)
{
path = path.ToLower();
if (async && group == null)
{
group = m_task.PopGroup(priority);
}
if (manifest)
{
if (!HasBundle(path))
{
// Manifest里没有这个AssetBundle,说明是一个错误的路径
Logger.LogError(string.Format("ab不存在:{0}", path));
if (onLoaded != null)
{
if (!async)
{
onLoaded(group, null);
}
else
{
m_task.AddAsyncCallback(onLoaded, group, null);
}
}
return;
}
// 加载依赖
LoadDependencies(group, path, async, persistent);
}
// 检查是否有缓存
if (m_cache.CheckAssetBundleInfo(group, path, onLoaded, persistent, async))
{
return;
}
// 添加加载任务
m_task.AddLoadTask(group, Loader.LoaderType.Bundle, path, null, (group1, data) => {
AssetBundle ab = data as AssetBundle;
AssetBundleInfo info = null;
if (ab != null)
{
info = m_cache.SetAssetBundle(path, ab);
#if UNITY_EDITOR
RefreshShader(ab);
#endif
}
// 加载回调
if (onLoaded != null)
{
onLoaded(group1, info);
}
}, async, priority);
}
