Version: 2017.4
LanguageEnglish
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

DownloadHandlerAssetBundle Constructor

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

public DownloadHandlerAssetBundle(url: string, crc: uint)
public DownloadHandlerAssetBundle(string url, uint crc);

Parameters

urlThe nominal (pre-redirect) URL at which the asset bundle is located.
crcA checksum to compare to the downloaded data for integrity checking, or zero to skip integrity checking.

Description

Standard constructor for non-cached asset bundles.

This constructor will bypass the caching system and simply download the AssetBundle from url.

If the crc argument is non-zero, then the crc argument will be compared to the checksum of the downloaded data. If the CRCs do not match, an error will be logged, the asset bundle will not be loaded, and assetBundle will return null.

If you do not wish to use CRC integrity checking, pass zero as the crc argument.


public DownloadHandlerAssetBundle(url: string, version: uint, crc: uint)
public DownloadHandlerAssetBundle(string url, uint version, uint crc);

Parameters

urlThe nominal (pre-redirect) URL at which the asset bundle is located.
crcA checksum to compare to the downloaded data for integrity checking, or zero to skip integrity checking.
versionCurrent version number of the asset bundle at url. Increment to redownload.

Description

Simple versioned constructor. Caches downloaded asset bundles.

When this constructor is used, the DownloadHandlerAssetBundle will first check to see if there is a cached AssetBundle from url.

If there is no cached asset bundle, or if the cached asset bundle's version matches the version argument, then the system will skip downloading the asset bundle and instead load it from the cache.

If there is a cached asset bundle, but the cached bundle's version does not match the version argument, then the system will re-download the asset bundle from url.

If the crc argument is non-zero, then the crc argument will be compared to the checksum of the downloaded data. If the CRCs do not match, an error will be logged, the asset bundle will not be loaded, and assetBundle will return null.

If you do not wish to use CRC integrity checking, pass zero as the crc argument.


public DownloadHandlerAssetBundle(url: string, hash: Hash128, crc: uint)
public DownloadHandlerAssetBundle(string url, Hash128 hash, uint crc);

Parameters

urlThe nominal (pre-redirect) URL at which the asset bundle is located.
crcA checksum to compare to the downloaded data for integrity checking, or zero to skip integrity checking.
hashA hash object defining the version of the asset bundle.

Description

Versioned constructor. Caches downloaded asset bundles.

When this constructor is used, the DownloadHandlerAssetBundle will first check to see if there is a cached AssetBundle from url.

If there is no cached asset bundle, or if the cached asset bundle's hash matches the hash argument, then the system will skip downloading the asset bundle and instead load it from the cache.

If there is a cached asset bundle, but the cached bundle's hash does not match the hash argument, then the system will re-download the asset bundle from url.

If the crc argument is non-zero, then the crc argument will be compared to the checksum of the downloaded data. If the CRCs do not match, an error will be logged, the asset bundle will not be loaded, and assetBundle will return null.

If you do not wish to use CRC integrity checking, pass zero as the crc argument.