public Action loadBundleByNameHash(string bundleName, DelegateVoidAssetBundle userCallBack)
{
int id = ++_uuId;
_uuIdSet.Add(id);
//引用计数+1
if (_name2RefCnt.ContainsKey(bundleName))
{
_name2RefCnt[bundleName]++;
}
else
{
_name2RefCnt.Add(bundleName, 1);
}
if (_name2AssetBundle.TryGetValue(bundleName, out var ab))
{
log(
$"loadBundle: {bundleName}, refCnt:{_name2RefCnt[bundleName]}, bundle is loaded, return to user");
userCallBack?.Invoke(ab);
}
else
{
if (_loadingBundles.Contains(bundleName))
{
log(
$"loadBundle: {bundleName}, refCnt:{_name2RefCnt[bundleName]}, bundle is loading already");
}
else
{
log($"loadBundle: {bundleName}, refCnt:{_name2RefCnt[bundleName]}, start coroutine");
_name2OnLoadDone.Add(bundleName, null);
_loadingBundles.Add(bundleName);
StartCoroutine(LoadBundleCoroutine(bundleName));
}
//设置监听
if (!_name2OnLoadDone.ContainsKey(bundleName))
{
_name2OnLoadDone.Add(bundleName, null);
}
_name2OnLoadDone[bundleName] += userCallBack;
}
//返回dispose方法. 如果需要在userCallBack里释放，新加一个loadBundle方法，userCallBack的时候把dispose作为参数
return(() =>
{
if (!_uuIdSet.Contains(id))
{
Debug.LogWarning($"{bundleName} has been disposed already");
return;
}
_uuIdSet.Remove(id);
_name2RefCnt[bundleName]--;
_name2OnLoadDone[bundleName] -= userCallBack;
if (_name2RefCnt[bundleName] == 0)
{
if (_name2AssetBundle.ContainsKey(bundleName))
{
log($"release bundle: {bundleName}, refCnt:0, Unload bundle");
_name2AssetBundle[bundleName].Unload(true);
_name2AssetBundle.Remove(bundleName);
_name2RefCnt.Remove(bundleName);
_name2OnLoadDone[bundleName] = null;
_name2OnLoadDone.Remove(bundleName);
}
else
{
log($"release bundle: {bundleName}, refCnt:0，but it is still loading");
_name2OnLoadDone[bundleName] = null;
_name2OnLoadDone.Remove(bundleName);
_name2RefCnt.Remove(bundleName);
}
}
else
{
log($"release bundle: {bundleName}, refCnt:{_name2RefCnt[bundleName]}");
}
});
}
