YooAsset/Docs/YooAssetUpdater.md

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# 资源更新
**更新补丁清单**
对于联机运行模式,在初始化资源系统之后,需要立刻更新资源清单。
在此之前需要获取更新的资源版本号一般通过HTTP访问游戏服务器来获取。
````c#
private IEnumerator UpdatePatchManifest()
{
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int updateResourceVersion = 123;
int timeout = 30;
UpdateManifestOperation operation = YooAssets.UpdateManifestAsync(updateResourceVersion, timeout);
yield return operation;
if (operation.Status == EOperationStatus.Succeed)
{
//更新成功
}
else
{
//更新失败
Debug.LogError(operation.Error);
}
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}
````
**补丁包下载**
在补丁清单更新完毕后,就可以更新资源文件了。
根据产品需求,可以选择更新全部资源,或者只更新部分资源。
````c#
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private DownloaderOperation _downloader;
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/// <summary>
/// 创建下载器
/// </summary>
private void CreateDownloader()
{
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string[] tags = { "buildin", "config" };
int downloadingMaxNum = 10;
int failedTryAgain = 3;
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_downloader = YooAssets.CreatePatchDownloader(tags, downloadingMaxNum, failedTryAgain);
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if (_downloader.TotalDownloadCount == 0)
{
//没有需要下载的资源
}
else
{
//需要下载的文件总数和总大小
int totalDownloadCount = _downloader.TotalDownloadCount;
long totalDownloadBytes = _downloader.TotalDownloadBytes;
}
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}
/// <summary>
/// 开启下载
/// </summary>
private IEnumerator Download()
{
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//注册回调方法
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_downloader.OnDownloadFileFailedCallback = OneDownloadFileFailed;
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_downloader.OnDownloadProgressCallback = OnDownloadProgressUpdate;
_downloader.OnDownloadOverCallback = OnDownloadOver;
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//开启下载
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_downloader.BeginDownload();
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yield return _downloader;
//检测下载结果
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if (_downloader.States == EOperationStatus.Succeed)
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{
//下载成功
}
else
{
//下载失败
}
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}
````