Version: 2019.2
  • C#


class in UnityEngine.Networking


Implemented in:UnityEngine.UnityWebRequestModule

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Manage and process HTTP response body data received from a remote server.

DownloadHandler objects are helper objects. When attached to a UnityWebRequest, they define how to handle HTTP response body data received from a remote server. Generally, they are used to buffer, stream and/or process response bodies.

DownloadHandler is a base class. Depending on usage scenario, different specialized classes are available. DownloadHandlerBuffer provides basic buffering, while DownloadHandlerTexture and DownloadHandlerAssetBundle provide more efficient solutions for Texture and AssetBundle downloads.

For custom use cases, see DownloadHandlerScript.

See Also: UnityWebRequest, DownloadHandlerBuffer, DownloadHandlerTexture, DownloadHandlerAudioClip, DownloadHandlerAssetBundle, DownloadHandlerScript.


dataReturns the raw bytes downloaded from the remote server, or null. (Read Only)
isDoneReturns true if this DownloadHandler has been informed by its parent UnityWebRequest that all data has been received, and this DownloadHandler has completed any necessary post-download processing. (Read Only)
textConvenience property. Returns the bytes from data interpreted as a UTF8 string. (Read Only)

Public Methods

DisposeSignals that this DownloadHandler is no longer being used, and should clean up any resources it is using.

Protected Methods

CompleteContentCallback, invoked when all data has been received from the remote server.
GetDataCallback, invoked when the data property is accessed.
GetProgressCallback, invoked when UnityWebRequest.downloadProgress is accessed.
GetTextCallback, invoked when the text property is accessed.
ReceiveContentLengthHeaderCallback, invoked with a Content-Length header is received.
ReceiveDataCallback, invoked as data is received from the remote server.