android系统其实是linux,那么可以在程序中去调用cat /proc/meminfo和cat
/proc/cpuino去查看内存和CPU等情况的,下面是程序:
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 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 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;
}
}
其实核心无非就是ProcessBuilder的运用,去启动命令行去读操作系统,
String[] args = {"/system/bin/cat", "/proc/cpuinfo"};
cmd = new ProcessBuilder(args);
Process process = cmd.start();
InputStream in = process.getInputStream();
然后再IO输入流读入就可以了