How to use FileObserver for System files [Android]

Question

I wan to monitor changes in android system file
"/sys/class/net/eth0/operstate" for monitoring ethernet state.

I have written an File Observer class but i am not getting any events in public void onEvent(int event, String path) call back function.

Do we need any special type of permissions for observing android system files?
Do i need to run my APK as root.

Thanks.

Answer 1

我们不能用于观察Android系统文件，我们需要root权限。