//CPU个数private int getNumCores() {
//Private Class to display only CPU devices in the directory listing
class CpuFilter implements FileFilter {
@Override
public boolean accept(File pathname) {
//Check if filename is "cpu", followed by a single digit number
if(Pattern.matches("cpu[0-9]", pathname.getName())) {
return true;
}
return false;
}
}
try {
//Get directory containing CPU info
File dir = new File("/sys/devices/system/cpu/");
//Filter to only list the devices we care about
File[] files = dir.listFiles(new CpuFilter());
Log.d(TAG, "CPU Count: "+files.length);
//Return the number of cores (virtual CPU devices)
return files.length;
} catch(Exception e) {
//Print exception
Log.d(TAG, "CPU Count: Failed.");
e.printStackTrace();
//Default to return 1 core
return 1;
}
}不需要root权限。
/sys/devices/system/cpu/cpu0 ----------Cpu1
/sys/devices/system/cpu/cpu1 ----------Cpu2
获取CPU最大频率：
// "/system/bin/cat" 命令行
1. public static long getCpuFrequence() {
2. ProcessBuilder cmd;
3. try {
4. String[] args = { "/system/bin/cat",
5. "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq" };
6. cmd = new ProcessBuilder(args);
7.
8. Process process = cmd.start();
9. BufferedReader reader = new BufferedReader(new InputStreamReader(
10. process.getInputStream()));
11. String line = reader.readLine();
12. return StringUtils.parseLongSafe(line, 10, 0);
13. } catch (IOException ex) {
14. ex.printStackTrace();
15. }
16. return 0;
17. }
// 获取CPU最小频率（单位KHZ）：
1. public static String getMinCpuFreq() {
2. String result = "";
3. ProcessBuilder cmd;
4. try {
5. String[] args = { "/system/bin/cat",
6. "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq" };
7. cmd = new ProcessBuilder(args);
8. Process process = cmd.start();
9. InputStream in = process.getInputStream();
10. byte[] re = new byte[24];
11. while (in.read(re) != -1) {
12. result = result + new String(re);
13. }
14. in.close();
15. } catch (IOException ex) {
16. ex.printStackTrace();
17. result = "N/A";
18. }
19. return result.trim();
20. }
// 实时获取CPU当前频率（单位KHZ）：
1. public static String getCurCpuFreq() {
2. String result = "N/A";
3. try {
4. FileReader fr = new FileReader(
5. "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
6. BufferedReader br = new BufferedReader(fr);
7. String text = br.readLine();
8. result = text.trim();
9. } catch (FileNotFoundException e) {
10. e.printStackTrace();
11. } catch (IOException e) {
12. e.printStackTrace();
13. }
14. return result;
15. }
/ 获取CPU名字：
1. public static String getCpuName() {
2. try {
3. FileReader fr = new FileReader("/proc/cpuinfo");
4. BufferedReader br = new BufferedReader(fr);
5. String text = br.readLine();
6. String[] array = text.split(":\\s+", 2);
7. for (int i = 0; i < array.length; i++) {
8. }
9. return array[1];
10. } catch (FileNotFoundException e) {
11. e.printStackTrace();
12. } catch (IOException e) {
13. e.printStackTrace();
14. }
15. return null;
16. }
内存：/proc/meminfo：
1. public void getTotalMemory() {
2. String str1 = "/proc/meminfo";
3. String str2="";
4. try {
5. FileReader fr = new FileReader(str1);
6. BufferedReader localBufferedReader = new BufferedReader(fr, 8192);
7. while ((str2 = localBufferedReader.readLine()) != null) {
8. Log.i(TAG, "---" + str2);
9. }
10. } catch (IOException e) {
11. }
12. }
1. public long[] getRomMemroy() {
2. long[] romInfo = new long[2];
3. //Total rom memory
4. romInfo[0] = getTotalInternalMemorySize();
5.
6. //Available rom memory
7. File path = Environment.getDataDirectory();
8. StatFs stat = new StatFs(path.getPath());
9. long blockSize = stat.getBlockSize();
10. long availableBlocks = stat.getAvailableBlocks();
11. romInfo[1] = blockSize * availableBlocks;
12. getVersion();
13. return romInfo;
14. }
15.
16. public long getTotalInternalMemorySize() {
17. File path = Environment.getDataDirectory();
18. StatFs stat = new StatFs(path.getPath());
19. long blockSize = stat.getBlockSize();
20. long totalBlocks = stat.getBlockCount();
21. return totalBlocks * blockSize;
22. }
sdCard大小：
1. public long[] getSDCardMemory() {
2. long[] sdCardInfo=new long[2];
3. String state = Environment.getExternalStorageState();
4. if (Environment.MEDIA_MOUNTED.equals(state)) {
5. File sdcardDir = Environment.getExternalStorageDirectory();
6. StatFs sf = new StatFs(sdcardDir.getPath());
7. long bSize = sf.getBlockSize();
8. long bCount = sf.getBlockCount();
9. long availBlocks = sf.getAvailableBlocks();
10.
11. sdCardInfo[0] = bSize * bCount;//总大小
12. sdCardInfo[1] = bSize * availBlocks;//可用大小
13. }
14. return sdCardInfo;
15. }
系统的版本信息：
1. public String[] getVersion(){
2. String[] version={"null","null","null","null"};
3. String str1 = "/proc/version";
4. String str2;
5. String[] arrayOfString;
6. try {
7. FileReader localFileReader = new FileReader(str1);
8. BufferedReader localBufferedReader = new BufferedReader(
9. localFileReader, 8192);
10. str2 = localBufferedReader.readLine();
11. arrayOfString = str2.split("\\s+");
12. version[0]=arrayOfString[2];//KernelVersion
13. localBufferedReader.close();
14. } catch (IOException e) {
15. }
16. version[1] = Build.VERSION.RELEASE;// firmware version
17. version[2]=Build.MODEL;//model
18. version[3]=Build.DISPLAY;//system version
19. return version;
20. }
mac地址和开机时间
1. public String[] getOtherInfo(){
2. String[] other={"null","null"};
3. WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
4. WifiInfo wifiInfo = wifiManager.getConnectionInfo();
5. if(wifiInfo.getMacAddress()!=null){
6. other[0]=wifiInfo.getMacAddress();
7. } else {
8. other[0] = "Fail";
9. }
10. other[1] = getTimes();
11. return other;
12.
13. private String getTimes() {
14. long ut = SystemClock.elapsedRealtime() / 1000;
15. if (ut == 0) {
16. ut = 1;
17. }
18. int m = (int) ((ut / 60) % 60);
19. int h = (int) ((ut / 3600));
20. return h + " " + mContext.getString(R.string.info_times_hour) + m + " "
21. + mContext.getString(R.string.info_times_minute);
22. }
---------------------------------------------------
1. private static void updateCpuStat() {
2. ProcessBuilder cmd;
3. long oldMypidStat = first ? 0 : mypidStat;
4. long oldTotal = first ? 0 : total;
5.
6. try {
7. StringBuilder builder = new StringBuilder();
8. int pid = android.os.Process.myPid();
9. String[] args = { "/system/bin/cat", "/proc/" + pid + "/stat" };
10. cmd = new ProcessBuilder(args);
11.
12. Process process = cmd.start();
13. InputStream in = process.getInputStream();
14. byte[] re = new byte[1024];
15. int len;
16. while ((len = in.read(re)) != -1) {
17. builder.append(new String(re, 0, len));
18. }
19. // Log.i(TAG, builder.toString());
20. in.close();
21.
22. String[] stats = builder.toString().split(" +", -1);
23. if (stats.length >= 17) {
24. long utime = StringUtils.parseLongSafe(stats[13], 10);
25. long stime = StringUtils.parseLongSafe(stats[14], 10);
26. long cutime = StringUtils.parseLongSafe(stats[15], 10);
27. long cstime = StringUtils.parseLongSafe(stats[16], 10);
28. // Log.i(TAG, String.format(
29. // "utime:%d, stime:%d, cutime:%d, cstime:%d", utime,
30. // stime, cutime, cstime));
31. mypidStat = utime + stime + cutime + cstime;
32. }
33. } catch (IOException ex) {
34. ex.printStackTrace();
35. }
36.
37. try {
38. String[] args = { "/system/bin/cat", "/proc/stat" };
39. cmd = new ProcessBuilder(args);
40.
41. Process process = cmd.start();
42. BufferedReader reader = new BufferedReader(new InputStreamReader(
43. process.getInputStream()));
44. String line = null;
45. while ((line = reader.readLine()) != null) {
46. Matcher matcher = pattern.matcher(line);
47. if (matcher.matches()) {
48. String[] stats = line.split(" +", -1);
49. long tmpTotal = 0;
50. for (int i = 1; i < stats.length; i++) {
51. tmpTotal += StringUtils.parseLongSafe(stats[i], 10);
52. }
53. total = tmpTotal;
54. }
55. break;
56. }
57. if (first) {
58. first = false;
59. } else {
60. Log.i(TAG, String.format("vsir cpu usage: %2.1f%%",
61. (double) (mypidStat - oldMypidStat)
62. / (total - oldTotal) * 100));
63. }
64. reader.close();
65. } catch (IOException ex) {
66. ex.printStackTrace();
67. }
68. }