可卸载预安装功能的配置步骤有哪些呢

预安装分为可卸载预安装和不可卸载预安装，本文主要阐述的是可卸载预安装的功能。配置步骤如下：

1)若是希望可卸载预安装，新增文件夹 device/rockchip/rk3288/preinstall_del；

若是不可卸载预安装，新增文件夹 device/rockchip/rk3288/preinstall。

2)拷贝需要预制的第三方应用到上述文件夹，注意APK文件名尽量使用英文，避免空格。

3)编译结束后会将预制的文件拷贝至system固件中。烧录后，系统会自动安装这些应用。

4)需要注意的是，在preinstall_del目录中的应用，即使用户在使用过程中将其卸载，但在恢复出厂设置后，应用又会自动安装。

如果希望恢复出厂设置后不再恢复预安装应用，可以将上述文件夹名字改为 preinstall_del_forever 即可实现。

device/rockchip/rk3288/preinstall_del_forever 文件夹。

root@ubuntu:~/rk3288/device/rockchip/rk3288$ ll

total 156

drwxrwxr-x 12 root root 4096 Aug 22 09:40 ./

drwxrwxr-x 4 root root 4096 Jul 20 08:19 ../

-rw-rw-r-- 1 root root 80 Jul 20 08:19 Android.mk

-rw-rw-r-- 1 root root 728 Jul 20 08:19 AndroidProducts.mk

drwxrwxr-x 2 root root 4096 Jul 20 08:19 bluetooth/

-rw-rw-r-- 1 root root 2555 Jul 20 08:19 BoardConfig.mk

-rwxrwxr-x 1 root root 4523 Jul 20 08:19 build.sh*

-rw-rw-r-- 1 root root 4221 Jul 20 08:19 buildspec-rk3288-box.mk

-rw-rw-r-- 1 root root 4213 Jul 20 08:19 buildspec-rk3288-mid.mk

-rw-rw-r-- 1 root root 4219 Jul 20 08:19 buildspec-rk3288-vr.mk

-rwxrwxr-x 1 root root 2317 Jul 20 08:19 device.mk*

-rw-rw-r-- 1 root root 2100 Jul 20 08:19 fstab.rk30board.bootmode.emmc

-rw-rw-r-- 1 root root 1918 Jul 20 08:19 fstab.rk30board.bootmode.unknown

drwxrwxr-x 2 root root 4096 Jul 20 08:19 .git/

-rwxrwxr-x 1 root root 532 Jul 20 08:19 .gitignore*

-rw-rw-r-- 1 root root 3682 Jul 20 08:19 init.rk30board.u***.rc

-rwxrwxr-x 1 root root 1027 Jul 20 08:19 init.rk3288.rc*

drwxrwxr-x 4 root root 4096 Jul 20 08:19 ota/

drwxrwxr-x 3 root root 4096 Jul 20 08:19 overlay/

drwxrwxr-x 3 root root 4096 Jul 20 08:19 overlay_screenoff/

-rw-rw-r-- 1 root root 202 Jul 20 08:19 package_performance.xml

-rw-rw-r-- 1 root root 710 Jul 20 08:19 parameter.txt

drwxrwxr-x 3 root root 4096 Aug 22 09:34 preinstall/

drwxrwxr-x 3 root root 4096 Aug 22 09:34 preinstall_del/

drwxrwxr-x 3 root root 4096 Aug 22 09:34 preinstall_del_forever/

-rw-rw-r-- 1 root root 2742 Jul 20 08:19 recovery.emmc.fstab

drwxrwxr-x 3 root root 4096 Jul 20 08:19 rk3288_box/

-rw-rw-r-- 1 root root 917 Jul 20 08:19 rk3288_box.mk

-rw-rw-r-- 1 root root 1326 Jul 20 08:19 rk3288.mk

drwxrwxr-x 2 root root 4096 Jul 20 08:19 rk3288_vr/

-rw-rw-r-- 1 root root 1287 Jul 20 08:19 rk3288_vr.mk

-rw-rw-r-- 1 root root 1152 Jul 20 08:19 system.prop

-rw-rw-r-- 1 root root 793 Jul 20 08:19 vendorsetup.sh

-rw-rw-r-- 1 root root 284 Jul 20 08:19 wake_lock_filter.xml

-rw-rw-r-- 1 root root 1180 Jul 20 08:19 wifi_bt.mk

root@ubuntu:~/rk3288/device/rockchip/rk3288$

root@ubuntu:~/rk3288/device/rockchip/rk3288/preinstall$ ll

total 24

drwxrwxr-x 3 root root 4096 Aug 22 09:34 ./

drwxrwxr-x 12 root root 4096 Aug 22 09:40 ../

-rw-rw-r-- 1 root root 38 Aug 22 09:34 Android.mk

-rw-rw-r-- 1 root root 27 Aug 22 09:34 preinstall.mk

-rwxrwxr-x 1 root root 78 Jul 20 08:19 README.txt*

drwxrwxr-x 3 root root 4096 Aug 22 09:31 wechat/

root@ubuntu:~/rk3288/device/rockchip/rk3288/preinstall$ cd ../preinstall_del

root@ubuntu:~/rk3288/device/rockchip/rk3288/preinstall_del$ ll

total 24

drwxrwxr-x 3 root root 4096 Aug 22 09:34 ./

drwxrwxr-x 12 root root 4096 Aug 22 09:40 ../

-rw-rw-r-- 1 root root 38 Aug 22 09:34 Android.mk

drwxrwxr-x 3 root root 4096 Aug 22 09:31 ifeng/

-rw-rw-r-- 1 root root 26 Aug 22 09:34 preinstall.mk

-rwxrwxr-x 1 root root 105 Jul 20 08:19 README.txt*

root@ubuntu:~/rk3288/device/rockchip/rk3288/preinstall_del$ cd ../preinstall_del_forever/

root@ubuntu:~/rk3288/device/rockchip/rk3288/preinstall_del_forever$ ll

total 24

drwxrwxr-x 3 root root 4096 Aug 22 09:34 ./

drwxrwxr-x 12 root root 4096 Aug 22 09:40 ../

-rw-rw-r-- 1 root root 38 Aug 22 09:34 Android.mk

drwxrwxr-x 3 root root 4096 Aug 22 09:31 cloudmusic_98/

-rw-rw-r-- 1 root root 34 Aug 22 09:34 preinstall.mk

-rwxrwxr-x 1 root root 108 Jul 20 08:19 README.txt*

root@ubuntu:~/rk3288/device/rockchip/rk3288/preinstall_del_forever$

  

将这个三个apk，分别放入到相应的文件夹

再重新编译Android，之后再烧录固件，开机则可看见效果。