View CPU and memory in Android

The Android system is actually Linux, so you can call CAT/proc/meminfo and Cat in the program

/Proc/cpuino to view the memory and CPU conditions, the following is the program:

Public class cpuspeed extends activity {

/** Called when the activity is first created .*/

Private textview cpuinfo;

Private textview memoryinfo;

Public void oncreate (bundle savedinstancestate ){

Super. oncreate (savedinstancestate );

Setcontentview (R. layout. Main );

Cpuinfo = (textview) findviewbyid (R. Id. cpuinfo );

Cpuinfo. settext (getcpuinfo ());

Memoryinfo = (textview) findviewbyid (R. Id. memoryinfo );

Memoryinfo. settext (getmemoryinfo ());

}

Private string getmemoryinfo (){

Processbuilder cmd;

String result = new string ();

Try {

String [] ARGs = {"/system/bin/cat", "/proc/meminfo "};

Cmd = new processbuilder (ARGs );

Process = cmd. Start ();

Inputstream in = process. getinputstream ();

Byte [] Re = new byte [1024];

While (in. Read (re )! =-1)

{

System. Out. println (new string (re ));

Result = Result + new string (re );

}

In. Close ();

}

Catch (ioexception ex ){

Ex. printstacktrace ();

}

Return result;

}

Private string getcpuinfo ()

{

Processbuilder cmd;

String result = "";

Try {

String [] ARGs = {"/system/bin/cat", "/proc/cpuinfo "};

Cmd = new processbuilder (ARGs );

Process = cmd. Start ();

Inputstream in = process. getinputstream ();

Byte [] Re = new byte [1024];

While (in. Read (re )! =-1 ){

System. Out. println (new string (re ));

Result = Result + new string (re );

}

In. Close ();

} Catch (ioexception ex ){

Ex. printstacktrace ();

}

Return result;

}

}

In fact, the core is nothing more than the use of processbuilder, to start the command line to read the operating system,

String [] ARGs = {"/system/bin/cat", "/proc/cpuinfo "};

Cmd = new processbuilder (ARGs );

Process = cmd. Start ();

Inputstream in = process. getinputstream ();

Then read the IO input stream.