Android下获取CPU信息的办法

1、最简单的是使用Build的信息。

import android.os.Build;

String cpu = Build.CPU_ABI;
cpu.startWith("arm");

2、使用系统文件/proc/cpuinfo

1. try {  
2.         InputStream is = new FileInputStream("/proc/cpuinfo");  
3.         InputStreamReader ir = new InputStreamReader(is);  
4.         BufferedReader br = new BufferedReader(ir);  
5.         try {  
6.             String nameProcessor = "Processor";  
7.             String nameFeatures = "Features";  
8.             String nameModel = "model name";  
9.             String nameCpuFamily = "cpu family";  
10.             while (true) {  
11.                 String line = br.readLine();  
12.                 String[] pair = null;  
13.                 if (line == null) {  
14.                     break;  
15.                 }  
16.                 pair = line.split(":");  
17.                 if (pair.length != 2)  
18.                     continue;  
19.                 String key = pair[0].trim();  
20.                 String val = pair[1].trim();  
21.                 if (key.compareTo(nameProcessor) == 0) {  
22.                     String n = "";  
23.                     for (int i = val.indexOf("ARMv") + 4; i < val.length(); i++) {  
24.                         String temp = val.charAt(i) + "";  
25.                         if (temp.matches("\\d")) {  
26.                             n += temp;  
27.                         } else {  
28.                             break;  
29.                         }  
30.                     }  
31.                     mArmArchitecture[0] = "ARM";  
32.                     mArmArchitecture[1] = Integer.parseInt(n);  
33.                     continue;  
34.                 }  
35.   
36.                 if (key.compareToIgnoreCase(nameFeatures) == 0) {  
37.                     if (val.contains("neon")) {  
38.                         mArmArchitecture[2] = "neon";  
39.                     }  
40.                     continue;  
41.                 }  
42.   
43.                 if (key.compareToIgnoreCase(nameModel) == 0) {  
44.                     if (val.contains("Intel")) {  
45.                         mArmArchitecture[0] = "INTEL";  
46.                         mArmArchitecture[2] = "atom";  
47.                     }  
48.                     continue;  
49.                 }  
50.   
51.                 if (key.compareToIgnoreCase(nameCpuFamily) == 0) {  
52.                     mArmArchitecture[1] = Integer.parseInt(val);  
53.                     continue;  
54.                 }  
55.             }  
56.         } finally {  
57.             br.close();  
58.             ir.close();  
59.             is.close();  
60.         }  
61.     } catch (Exception e) {  
62.         e.printStackTrace();  
63.     }