First of all, thank you for the first answer @didikee
Following this idea, I found an Android Process class. This class seems to obtain various process information by reading the information in the proc folder. Please go to github for details.
1.CPU frequency, CPU information: /proc/cpuinfo和/proc/stat 2.内存：/proc/meminfo 3.proc/This information file in the directory is only readable, not writable.
I took a screenshot, you can take a look for yourself: (Of course I hope you can take a look with your phone)
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First of all, thank you for the first answer @didikee
Following this idea, I found an Android Process class. This class seems to obtain various process information by reading the information in the proc folder. Please go to github for details.
Another: Extended reading
1.CPU frequency, CPU information:
/proc/cpuinfo和/proc/stat2.内存：
/proc/meminfo3.
proc/This information file in the directory is only readable, not writable.I took a screenshot, you can take a look for yourself: (Of course I hope you can take a look with your phone)
Reference: http://www.cnblogs.com/brainy/archive/2012/05/30/2526752.html