定义

/frameworks/base/cmds/bootanimation/bootanim.rc

service bootanim /system/bin/bootanimation
    class core animation
    user graphics
    group graphics audio
    disabled
    oneshot
    ioprio rt 0
    task_profiles MaxPerformance

启动

system/core/rootdir/init.rc

on property:vold.decrypt=trigger_restart_framework
    # A/B update verifier that marks a successful boot.
    exec_start update_verifier
    class_start_post_data hal
    class_start_post_data core
    class_start main
    class_start late_start
    setprop service.bootanim.exit 0
    setprop service.bootanim.progress 0
    start bootanim

Android开机动画

原文：https://www.cnblogs.com/forrest-lin/p/14530804.html