//----------------------------------------------------------------------------------------------------------------------------
protected void onLoadWechatHead(Object tex, Object[] subAssets, byte[] bytes, object userData, string loadPath)
{
string openID = userData as string;
Texture head = tex as Texture;
HeadLoadInfo info = mHeadTextureList[openID];
if (head != null)
{
info.mTexture = head;
info.mState = LOAD_STATE.LS_LOADED;
}
int callbackCount = info.mCallbackList.Count;
for (int i = 0; i < callbackCount; ++i)
{
info.mCallbackList[i](head, openID);
}
info.mCallbackList.Clear();
// 头像下载失败,删除下载信息,当有再次请求头像时再重新下载
if (tex == null)
{
mHeadTextureList.Remove(openID);
}
}
public void requestLoadTexture(string url, string openID, HeadDownloadCallback doneCallback)
{
if (isEmpty(url) || isEmpty(openID))
{
doneCallback?.Invoke(null, openID);
return;
}
if (mHeadTextureList.ContainsKey(openID))
{
HeadLoadInfo info = mHeadTextureList[openID];
if (info.mURL == url)
{
if (doneCallback != null)
{
// 已经下载过了,则直接调用回调
if (info.mState == LOAD_STATE.LS_LOADED)
{
doneCallback(info.mTexture, openID);
}
// 正在下载,则将回调添加到列表中
else if (info.mState == LOAD_STATE.LS_LOADING)
{
if (!info.mCallbackList.Contains(doneCallback))
{
info.mCallbackList.Add(doneCallback);
}
}
}
}
else
{
// 头像链接修改了,则需要重新下载
if (info.mState == LOAD_STATE.LS_LOADED)
{
// 先销毁旧头像
destroyGameObject(ref info.mTexture);
// 下载新头像
info.mState = LOAD_STATE.LS_LOADING;
info.mURL = url;
if (doneCallback != null)
{
info.mCallbackList.Add(doneCallback);
}
mResourceManager.loadAssetsFromUrl <Texture>(url, onLoadWechatHead, openID);
}
// 如果头像正在下载,则只能等待头像下载完毕
else if (info.mState == LOAD_STATE.LS_LOADING)
{
if (!info.mCallbackList.Contains(doneCallback))
{
info.mCallbackList.Add(doneCallback);
}
}
}
}
else
{
HeadLoadInfo info = new HeadLoadInfo();
info.mOpenID = openID;
info.mTexture = null;
info.mState = LOAD_STATE.LS_LOADING;
info.mURL = url;
if (doneCallback != null)
{
info.mCallbackList.Add(doneCallback);
}
mHeadTextureList.Add(openID, info);
mResourceManager.loadAssetsFromUrl <Texture>(url, onLoadWechatHead, openID);
}
}