I am developing my Android app and I want to use my own database file. My DB is about 115 MB so I have to split it to 1 MB parts to transfer it from assets into phone during installation. As you can understand my app is going to be huge so I decide to compress it, to transfer it into phone and then decompress it to the SD card and use it. When I compress the DB, the size is reduced from 115 MB to 41 MB and, because of asset max size, I split it also in 1 MB parts.
When I try to install my app in my testing device (not a VM), I face the following absurd:
when I put in assets file in android project all the uncompressed database parts (115 parts/ 115 MB size) I am taking Installation error: INSTALL_FAILED_INSUFFICIENT_STORAGE and this is normal. After that, I delete all that files from assets and copy only 50 parts of my uncompressed database, which size are 50 MB and the app run fine! After that, I delete again all that files from assets and copy the compressed database parts (41 parts/ 41 MB size) and I take the same error Installation error: INSTALL_FAILED_INSUFFICIENT_STORAGE. How is that possible? Is there any reason for that, any explanation because of the compressed files? I want to mention that while I try it, I am not doing any task when the app start. I only put the files in asset folder and start the app.
An app can only take 50 mb, if you want to use more space you need to use expansion files.