96 lines
3.1 KiB
C#
96 lines
3.1 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 UnityWebDataRequestOperation : 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 ESteps _steps = ESteps.None;
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/// <summary>
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/// 响应的超时时间（单位：秒），在经过Timeout的秒数后尝试中止。
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/// 注意：当Timeout设置为0时，不会应用超时。
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/// 注意：设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
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/// </summary>
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private readonly int _timeout;
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/// <summary>
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/// 请求结果
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/// </summary>
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public byte[] Result { private set; get; }
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internal UnityWebDataRequestOperation(string url, int timeout) : base(url)
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{
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_timeout = timeout;
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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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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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return;
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if (CheckRequestResult())
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{
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var fileData = _webRequest.downloadHandler.data;
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if (fileData == null || fileData.Length == 0)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"URL : {_requestURL} Download handler data is null or empty !";
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}
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else
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{
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_steps = ESteps.Done;
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Result = fileData;
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Status = EOperationStatus.Succeed;
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}
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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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DownloadHandlerBuffer handler = new DownloadHandlerBuffer();
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_webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
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_webRequest.timeout = _timeout;
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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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} |