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Foxy Boot

Android boot animation replacement which displays the kernel ring buffer or Android log.

Screenshot

Configuration

Foxy Boot uses black background color and white foreground color by default. The font scale is dependent on display DPI. These values can be changed using the following system properties:

  • foxy.boot.scale — scale factor, can take integer values from 1 to 9
  • foxy.boot.background ­— background color in hex format (e.g. #000000)
  • foxy.boot.foreground ­— foreground color in hex format (e.g. #ffffff)
  • foxy.boot.source ­— message source (kmsg for the kernel ring buffer or logd for Android log)

These properties can be changed using init shell script. For instance, you can create foxy-boot.sh in /sbin/.magisk/img/.core/post-fs-data.d (don't forget to make it executable via chmod a+x) with the following commands:

resetprop 'foxy.boot.scale' 2
resetprop 'foxy.boot.background' '#ffffff'
resetprop 'foxy.boot.foreground' '#000000'
resetprop 'foxy.boot.source' 'logd'

ABI and Linking Issues

Foxy Boot works with private Android API which is not available in NDK. It's dynamically linked against stub libraries which should resemble the real libraries in the system, however successful linking and full ABI compatibility on the real Android system cannot be guaranteed.

The program is also dynamically linked against libc++.so, which may be unavailable on some Android devices.

The installer script will perform necessary checks and patch the binaries accordingly. It will also report linker errors so they could be reported at my GitHub repo.

License

Foxy Boot is available under the terms of GNU General Public License v3 or later. Copyright (C) 2019 kitsunyan.

The program is partially based on bootanimation from the AOSP. Copyright (C) 2007 The Android Open Source Project.