How to get the CPU usage details of an app for Android 8+

Hi all,

I am trying to get the amount of CPU being utilized by my app. I have searched for solutions online and all the answers suggest getting the details from /proc/stat which holds the details for all CPU numbers. I have tried the following solution posted on stackoverflow [link](https://stackoverflow.com/a/50088571/9359379) and the following [link](https://github.com/souch/AndroidCPU/blob/master/app/src/main/java/souch/androidcpu/CpuInfo.java).
However, It throws error `java.io.FileNotFoundException: /proc/stat: open failed: EACCES (Permission denied)`

On further searching of solution for this issue, I found out that the file /proc/stat/ has been disabled since Android 8.

So I request you kindly help me on getting the CPU usage details by this method or any alternate method.

Thank you