public AssetHandle(AssetBundleHandle abHandle, string assetName)
{
_abHandle = abHandle;
_obj = abHandle.assetBundle.LoadAsset(assetName);
_type = ParseStringToAssetType(assetName, out _tail);
_avaliable = _obj != null;
}
public AssetHandle(AssetBundleHandle abHandle, string name, string dictionaryKey)
{
this.abHandle = abHandle;
this.abHandle.IncrementReference();
this.name = name;
this.dictionaryKey = dictionaryKey;
}
private void OnCompleted(AsyncOperation ao)
{
AssetBundleCreateRequest request = ao as AssetBundleCreateRequest;
if (request.assetBundle == null)
{
return;
}
_selectedHandle = AddToAbDict(abPath, request.assetBundle);
RecalculateScrollViewAreaSize();
}
/// <summary>
/// 添加到ab包字典里
/// </summary>
/// <param name="abPath">ab包加载路径</param>
/// <param name="ab">加载后的ab包</param>
private AssetBundleHandle AddToAbDict(string abPath, AssetBundle ab)
{
if (_loadedAbDict.ContainsKey(abPath))
{
ShowNotification(new GUIContent("{0} 包已经在字典里了"));
return(_loadedAbDict[abPath]);
}
AssetBundleHandle handle = new AssetBundleHandle(ab, abPath);
_loadedAbDict.Add(abPath, handle);
Debug.LogFormat("{0}添加进AB字典", ab.name);
return(handle);
}
private void UnloadSelectedAb(bool unload)
{
if (_selectedHandle == null || !_selectedHandle.Avaliable)
{
return;
}
_loadedAbDict.Remove(_selectedHandle.AbPath);
_selectedHandle.Unload(unload);
_selectedHandle = null;
RecalculateScrollViewAreaSize();
}
/// <summary>
/// 为一个AB包里的所有资源生成资源操作句柄
/// </summary>
/// <param name="abHandle">AB包的操作句柄</param>
/// <returns></returns>
public static AssetHandle[] GetAssetHandles(AssetBundleHandle abHandle)
{
if (abHandle == null)
{
Debug.LogError("ab包不能为空");
return(null);
}
string[] names = abHandle.assetBundle.GetAllAssetNames();
List <AssetHandle> handles = new List <AssetHandle>();
foreach (string name in names)
{
handles.Add(new AssetHandle(abHandle, name));
}
return(handles.ToArray());
}
private void UnLoadAllAB()
{
foreach (AssetBundleHandle handle in _loadedAbDict.Values)
{
if (handle.Avaliable)
{
handle.Unload(true);
}
}
_loadedAbDict.Clear();
foreach (AssetBundle ab in AssetBundle.GetAllLoadedAssetBundles())
{
ab.Unload(true);
}
_selectedHandle = null;
RecalculateScrollViewAreaSize();
}
private void LoadAbAtPath(string path)
{
if (path == null || path == string.Empty)
{
return;
}
if (_loadedAbDict.ContainsKey(path))
{
this.ShowNotification(new GUIContent("ab包已在列表里"));
_selectedHandle = _loadedAbDict[path];
return;
}
AssetBundle ab = AssetBundle.LoadFromFile(path);
if (ab == null)
{
return;
}
_selectedHandle = AddToAbDict(path, ab);
}
private void DrawLeftBarContent()
{
if (_loadedAbDict.Count <= 0)
{
return;
}
foreach (AssetBundleHandle abHandle in _loadedAbDict.Values)
{
if (!abHandle.Avaliable)
{
continue;
}
bool selected = _selectedHandle == abHandle;
if (GUILayout.Toggle(selected, new GUIContent(abHandle.AbName), EditorStyles.toolbarButton, GUILayout.Width(200f)))
{
_selectedHandle = abHandle;
RecalculateScrollViewAreaSize();
}
}
}
public LoadHandle Load(
string identifier,
OnComplete onComplete = null,
GameObject holderGameObject = null)
{
string assetBundleName, assetName;
_database.ParseIdentifier(out assetBundleName, out assetName, identifier);
var abHandleDictionaryKey = assetBundleName;
var assetHandleDictionaryKey = identifier;
AssetHandle assetHandle = null;
lock (_lock)
{
// まず完了済みから探す
if (!_completeHandles.TryGetValue(assetHandleDictionaryKey, out assetHandle))
{
// ロード中から探す
_loadingHandles.TryGetValue(assetHandleDictionaryKey, out assetHandle);
}
}
// みつからなかったので生成
if (assetHandle == null)
{
// ないのでハンドル生成が確定
AssetBundleHandle abHandle = null;
if (!_abHandles.TryGetValue(abHandleDictionaryKey, out abHandle))
{
Hash128 hash;
uint crc;
_database.GetAssetBundleMetaData(out hash, out crc, assetBundleName);
var cachedAssetBundle = new CachedAssetBundle();
cachedAssetBundle.hash = hash;
cachedAssetBundle.name = assetBundleName;
var path = _downloadRoot + assetBundleName;
abHandle = new AssetBundleHandle(
assetBundleName,
ref cachedAssetBundle,
path);
_abHandles.Add(abHandleDictionaryKey, abHandle);
}
assetHandle = new AssetHandle(abHandle, assetName, assetHandleDictionaryKey);
_loadingHandles.Add(assetHandleDictionaryKey, assetHandle);
}
if (onComplete != null)
{
if (assetHandle.isDone)
{
onComplete(assetHandle.asset);
}
else
{
assetHandle.AddCallback(onComplete);
}
}
assetHandle.IncrementReferenceThreadSafe();
var handle = new LoadHandle(assetHandleDictionaryKey, this);
if (holderGameObject != null)
{
var holder = holderGameObject.GetComponent <LoadHandleHolder>();
if (holder == null)
{
holder = holderGameObject.AddComponent <LoadHandleHolder>();
}
holder.Add(handle);
}
return(handle);
}
