78 lines
2.3 KiB
C#
78 lines
2.3 KiB
C#
using UnityEngine.Networking;
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using UnityEngine;
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namespace YooAsset
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{
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internal class UnityWebFileRequestOperation : UnityWebRequestOperation
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{
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protected enum ESteps
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{
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None,
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CreateRequest,
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Download,
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Done,
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}
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private UnityWebRequestAsyncOperation _requestOperation;
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private readonly string _fileSavePath;
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private ESteps _steps = ESteps.None;
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internal UnityWebFileRequestOperation(string url, string fileSavePath, int timeout = 60) : base(url, timeout)
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{
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_fileSavePath = fileSavePath;
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}
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internal override void InternalStart()
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{
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_steps = ESteps.CreateRequest;
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}
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internal override void InternalUpdate()
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{
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if (_steps == ESteps.None || _steps == ESteps.Done)
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return;
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if (_steps == ESteps.CreateRequest)
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{
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ResetTimeout();
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CreateWebRequest();
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_steps = ESteps.Download;
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}
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if (_steps == ESteps.Download)
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{
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DownloadProgress = _webRequest.downloadProgress;
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DownloadedBytes = (long)_webRequest.downloadedBytes;
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Progress = _requestOperation.progress;
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if (_requestOperation.isDone == false)
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{
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CheckRequestTimeout();
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return;
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}
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if (CheckRequestResult())
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Succeed;
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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}
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// 注意：最终释放请求器
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DisposeRequest();
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}
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}
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private void CreateWebRequest()
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{
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_webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
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DownloadHandlerFile handler = new DownloadHandlerFile(_fileSavePath);
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handler.removeFileOnAbort = true;
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_webRequest.downloadHandler = handler;
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_webRequest.disposeDownloadHandlerOnDispose = true;
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_requestOperation = _webRequest.SendWebRequest();
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}
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}
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} |