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Issue ID




[Android] Cache.expirationDelay does not remove expired Asset Bundles from the cache

Asset Bundles


Steps to reproduce:
1. Open the attached project "TestForTrunk"
2. Build it to Android and run the app
3. Press the "Load Cube" button few times (a white cube should appear )
4. Use terminal or cmd and type "adb shell" to access the device storage
5. Use "cd storage/emulated/0/Android/data/com.unity.test/files/UnityCache/Shared"
6. Use ls to get a specific location which is written in a HashNumber
7. Use "cd (The first HashNumber from step 6 )"
8. Use ls to get another location that is named as a HashNumber
9. Use "cd (HashNumber from step 8)"
10. Use "stat __data"
11. Take a note of the timesteps
12. Close the app and wait for 10 or more seconds
13. Launch the app
14. Repeat step 9

Expected results: Timestamps are different
Actual results: Timestamps are the same(meaning __data file is not replaced but rather the older one is used)

Reproducible with: 2019.4.21f1, 2020.3.0f1, 2021.1.0b5, 2021.2.0a7
Unable to test with: 2018.4.31f1 due to project breaking

Reproducible devices:
VLNQA00264, Samsung Galaxy S10+ (SM-G975F), Android 10, CPU: NOT FOUND, GPU: Mali-G76
VLNQA00279, Samsung Galaxy S10+ (SM-G975U), Android 9, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
------------------- Huawei P40 Pro 10 HiSilicon Kirin 9000 Mali-G78
------------------- Huawei Mate 40 Pro 10 HiSilicon Kirin 990 5G Mali-G76

Unable to reproduce with:
iPhone 12 Mini and iPhone XR running iOS 14.4 and 14.3
Windows standalone

Unable to test with the device due to Asset BUndle fails to load::
----------, Xiaomi Redmi 4 (Redmi 4), Android 6.0.1, CPU: Snapdragon 430 MSM8937, GPU: Adreno (TM) 505
----------, Motorola Nexus 6 (Nexus 6), Android 7.1.1, CPU: Snapdragon 805 APQ8084AB, GPU: Adreno (TM) 420

  1. Resolution Note:

    This feature is planned for deprecation in the near future. We recommend allowing the cache to be cleared out based on cache size as opposed to expiration time.

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