// 卸载
public void unload()
{
ob = null;
obs = null;
if (status == XLoadStatus.LOADING || status == XLoadStatus.NONE)
{
status = XLoadStatus.FAIL;
}
XAssetKey key = new XAssetKey {
res = res, all = all, tp = tp
};
// 一般情况下都是属于bundle的，另外Editor模式是属于别的
if (bundle == null)
{
XLoad.instance.unloadAssetInfoFromCache(key);
}
else
{
// 属于bundle的
bundle.unloadAssetInfo(key);
}
}
public bool unloadAssetInfoFromCache(XAssetKey key)
{
if (assets.ContainsKey(key))
{
assets.Remove(key);
return(true);
}
return(false);
}
public XAssetInfo getAssetInfoFromCache(XAssetKey key, XLoadStatus status)
{
if (assets.ContainsKey(key))
{
return(assets[key]);
}
XAssetInfo value = new XAssetInfo {
res = key.res, all = key.all, tp = key.tp, status = status
};
assets[key] = value;
return(value);
}
// 获取一个依赖包的资源
public XAssetInfo getAssetInfo(XAssetKey key)
{
if (assets.ContainsKey(key))
{
return(assets[key]);
}
XAssetInfo value = new XAssetInfo {
res = key.res, all = key.all, tp = key.tp, status = XLoadStatus.NONE, bundle = this
};
assets[key] = value;
return(value);
}
public bool unloadAssetInfo(XAssetKey key)
{
if (assets.ContainsKey(key))
{
assets.Remove(key);
if (assets.Count == 0)
{
// 计时需要释放,说明曾经unload过，如果一次没有，那么不允许释放
lastAssetsEmpty = Time.realtimeSinceStartup;
}
return(true);
}
return(false);
}
public XAssetInfo getAssetInfo(XLoadRes res)
{
// 如果有了则直接返回
if (res.asset != null)
{
return(res.asset);
}
XAssetKey key = new XAssetKey {
res = res.res, all = res.all, tp = res.tp
};
if (string.IsNullOrEmpty(res.res))
{
res.asset = getAssetInfoFromCache(key, XLoadStatus.FAIL);
return(res.asset);
}
// 从AB里面获取一个
if (isLoadFromAB)
{
// 从AB包里面获取
XBundleInfo info = getAssetBundle(res.res);
if (info != null)
{
// 是否一定要在这里取？--1方便info做引用计数
res.asset = info.getAssetInfo(key);
}
else
{
res.asset = getAssetInfoFromCache(key, XLoadStatus.FAIL);
}
}
else
{
// 直接在上面在上面进行装载
res.asset = getAssetInfoFromCache(key, XLoadStatus.NONE);
}
return(res.asset);
}