getAssets().openFd() throw exception

[ottersss]

Hello all,
I place 2 files in assets folder

• res.bin (650 MB)
• res_LITE.bin(200 MB)

Then i use getAssets().openFd("filename") to load these files, but i have a trouble.

• In Android version 8,9,10,11,12,13: It was fine
• In Android version 6,7 (Nexus 6 - Android 6.0.1, Samsung J2 Pro - Android 7.1.1):
  • For "res_LITE.bin": Load success
  • For "res.bin": I got an exception "java.io.FileNotFoundException: res.bin"

Can anyone please explain why it thow exception? (I guess cause of large file but I'm not found information about that)
Thanks a lot!

 

[olbriar]

Welcome to Android Forums @ottersss . I moved your thread here for best assistance.

 

[James_Watson]

Have a test to verify the cause of large file at first.

copy res_LITE.bin res.bin
getAssets().openFd("res.bin")
check whether you will get the FileNotFoundException again.

 

[ottersss]

For your recommend, No exeption.

 

[James_Watson]

For your recommend, No exeption.

It seems that the AssetManager compressed the large asset file when you built for Android 6/7.
Place that files in res/raw folder instead of assets folder, and get it in your code like this:
activity.getResources().openRawResourceFd(rawId);

 

[ottersss]

It's a good idea but unfortunately i need place that files in assets folder cause i using "play asset delivery" feature