Android 11 (R) [API 30] : Zlib not compatible on this system

[aravindakv]

isCompatible is giving false in Android R version. Is there any reason?

if (!DefaultDeflateCompatibilityWindow().isCompatible) {
Logger.W("Zlib not compatible on this system")
return false
}

Also can we bundle zlib with apkpatcher as a library and make not to use system zlib to avoid these kind of issues during upgrade?

[hamid97m]

Any solution?

[hamid97m]

I change the Zlib version.
You can see in my PR

[berlix]

Is there any reason?

The reason is that Deflater on Android R and up is in fact incompatible and yields bad results upon patch application.

Inspired by @hamid97m's solution, we addressed this issue by bundling zlib 1.2.13 binaries (the currently latest version) and creating a version of Deflater that uses those.

Sources: https://github.com/EIDU/archive-patcher-android

The library is on Maven Central. See the repo's README.md for usage instructions.