Reboot programmatically Android Things

Question

I want to use this code in order to reboot my RPI3 running Android Things:

public static void Reboot()
{
    try {
        Process proc = R         


        

Answer 1

/system/bin/reboot binary in DP 4, so as in all the previous dev previews, has world-executable permission, i.e. the following yields

adb shell ls -l /system/bin | grep reboot
-rwxr-xr-x 1 root shell   ... reboot

That said, it is yet possible to execute the binary for any user (a.k.a app process in Android) without a need to grab su. Just execute in Java for

rebooting

Runtime.getRuntime().exec("reboot");

or for powering off

Runtime.getRuntime().exec("reboot -p");

No permission's needed in AndroidManifest.xml to run the binary successfully.

Caution: in case of security model changes in newer OS versions this approach may not work.