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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:

1. public class CpuSpeed extends Activity {
   
2. /** Called when the activity is first created. */
   
3.  
4. private TextView cpuInfo;
   
5. private TextView memoryInfo;
   
6.  
7. public void onCreate(Bundle savedInstanceState) {
   
8. super.onCreate(savedInstanceState);
   
9. setContentView(R.layout.main);
   
10. cpuInfo=(TextView)findViewById(R.id.cpuinfo);
    
11. cpuInfo.setText(getCPUinfo());
    
12. memoryInfo = (TextView)findViewById(R.id.memoryinfo);
    
13. memoryInfo.setText(getMemoryInfo());
    
14.  
15. }
    
16. private String getMemoryInfo(){
    
17. ProcessBuilder cmd;
    
18. String result = new String();
    
19.  
20. try{
    
21. String[] args = {"/system/bin/cat", "/proc/meminfo"};
    
22. cmd = new ProcessBuilder(args);
    
23.  
24. Process process = cmd.start();
    
25. InputStream in = process.getInputStream();
    
26. byte[] re=new byte[1024];
    
27. while (in.read(re)!=-1)
    
28. {
    
29. System.out.println(new String(re));
    
30. result = result + new String(re);
    
31.  
32. }
    
33. in.close();
    
34. }
    
35. catch(IOException ex){
    
36. ex.printStackTrace();
    
37. }
    
38. return result;
    
39.  
40. }
    
41. private String getCPUinfo()
    
42. {
    
43. ProcessBuilder cmd;
    
44. String result="";
    
45.  
46. try{
    
47. String[] args = {"/system/bin/cat", "/proc/cpuinfo"};
    
48. cmd = new ProcessBuilder(args);
    
49.  
50. Process process = cmd.start();
    
51. InputStream in = process.getInputStream();
    
52. byte[] re = new byte[1024];
    
53. while(in.read(re) != -1){
    
54. System.out.println(new String(re));
    
55. result = result + new String(re);
    
56. }
    
57. in.close();
    
58. } catch(IOException ex){
    
59. ex.printStackTrace();
    
60. }
    
61. return result;
    
62. }

 

}

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"};

1. cmd = new ProcessBuilder(args);
   
2.  
3. Process process = cmd.start();
   
4. InputStream in = process.getInputStream();

 

然后再IO输入流读入就可以了