//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
// "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq" 存储最大频率的文件的路径
- public static long getCpuFrequence() {
- ProcessBuilder cmd;
- try {
- String[] args = { "/system/bin/cat",
- "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq" };
- cmd = new ProcessBuilder(args);
- Process process = cmd.start();
- BufferedReader reader = new BufferedReader(new InputStreamReader(
- process.getInputStream()));
- String line = reader.readLine();
- return StringUtils.parseLongSafe(line, 10, 0);
- } catch (IOException ex) {
- ex.printStackTrace();
- }
- return 0;
- }
// 获取CPU最小频率(单位KHZ):
- public static String getMinCpuFreq() {
- String result = "";
- ProcessBuilder cmd;
- try {
- String[] args = { "/system/bin/cat",
- "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq" };
- cmd = new ProcessBuilder(args);
- Process process = cmd.start();
- InputStream in = process.getInputStream();
- byte[] re = new byte[24];
- while (in.read(re) != -1) {
- result = result + new String(re);
- }
- in.close();
- } catch (IOException ex) {
- ex.printStackTrace();
- result = "N/A";
- }
- return result.trim();
- }
// 实时获取CPU当前频率(单位KHZ):
- public static String getCurCpuFreq() {
- String result = "N/A";
- try {
- FileReader fr = new FileReader(
- "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
- BufferedReader br = new BufferedReader(fr);
- String text = br.readLine();
- result = text.trim();
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- }
- return result;
- }
/ 获取CPU名字:
- public static String getCpuName() {
- try {
- FileReader fr = new FileReader("/proc/cpuinfo");
- BufferedReader br = new BufferedReader(fr);
- String text = br.readLine();
- String[] array = text.split(":\\s+", 2);
- for (int i = 0; i < array.length; i++) {
- }
- return array[1];
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- }
- return null;
- }
内存:/proc/meminfo:
- public void getTotalMemory() {
- String str1 = "/proc/meminfo";
- String str2="";
- try {
- FileReader fr = new FileReader(str1);
- BufferedReader localBufferedReader = new BufferedReader(fr, 8192);
- while ((str2 = localBufferedReader.readLine()) != null) {
- Log.i(TAG, "---" + str2);
- }
- } catch (IOException e) {
- }
- }
Rom大小 www.2cto.com:
- public long[] getRomMemroy() {
- long[] romInfo = new long[2];
- //Total rom memory
- romInfo[0] = getTotalInternalMemorySize();
- //Available rom memory
- File path = Environment.getDataDirectory();
- StatFs stat = new StatFs(path.getPath());
- long blockSize = stat.getBlockSize();
- long availableBlocks = stat.getAvailableBlocks();
- romInfo[1] = blockSize * availableBlocks;
- getVersion();
- return romInfo;
- }
- public long getTotalInternalMemorySize() {
- File path = Environment.getDataDirectory();
- StatFs stat = new StatFs(path.getPath());
- long blockSize = stat.getBlockSize();
- long totalBlocks = stat.getBlockCount();
- return totalBlocks * blockSize;
- }
sdCard大小:
- public long[] getSDCardMemory() {
- long[] sdCardInfo=new long[2];
- String state = Environment.getExternalStorageState();
- if (Environment.MEDIA_MOUNTED.equals(state)) {
- File sdcardDir = Environment.getExternalStorageDirectory();
- StatFs sf = new StatFs(sdcardDir.getPath());
- long bSize = sf.getBlockSize();
- long bCount = sf.getBlockCount();
- long availBlocks = sf.getAvailableBlocks();
- sdCardInfo[0] = bSize * bCount;//总大小
- sdCardInfo[1] = bSize * availBlocks;//可用大小
- }
- return sdCardInfo;
- }
系统的版本信息:
- public String[] getVersion(){
- String[] version={"null","null","null","null"};
- String str1 = "/proc/version";
- String str2;
- String[] arrayOfString;
- try {
- FileReader localFileReader = new FileReader(str1);
- BufferedReader localBufferedReader = new BufferedReader(
- localFileReader, 8192);
- str2 = localBufferedReader.readLine();
- arrayOfString = str2.split("\\s+");
- version[0]=arrayOfString[2];//KernelVersion
- localBufferedReader.close();
- } catch (IOException e) {
- }
- version[1] = Build.VERSION.RELEASE;// firmware version
- version[2]=Build.MODEL;//model
- version[3]=Build.DISPLAY;//system version
- return version;
- }
mac地址和开机时间
- public String[] getOtherInfo(){
- String[] other={"null","null"};
- WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
- WifiInfo wifiInfo = wifiManager.getConnectionInfo();
- if(wifiInfo.getMacAddress()!=null){
- other[0]=wifiInfo.getMacAddress();
- } else {
- other[0] = "Fail";
- }
- other[1] = getTimes();
- return other;
- }
- private String getTimes() {
- long ut = SystemClock.elapsedRealtime() / 1000;
- if (ut == 0) {
- ut = 1;
- }
- int m = (int) ((ut / 60) % 60);
- int h = (int) ((ut / 3600));
- return h + " " + mContext.getString(R.string.info_times_hour) + m + " "
- + mContext.getString(R.string.info_times_minute);
- }
- private static void updateCpuStat() {
- ProcessBuilder cmd;
- long oldMypidStat = first ? 0 : mypidStat;
- long oldTotal = first ? 0 : total;
- try {
- StringBuilder builder = new StringBuilder();
- int pid = android.os.Process.myPid();
- String[] args = { "/system/bin/cat", "/proc/" + pid + "/stat" };
- cmd = new ProcessBuilder(args);
- Process process = cmd.start();
- InputStream in = process.getInputStream();
- byte[] re = new byte[1024];
- int len;
- while ((len = in.read(re)) != -1) {
- builder.append(new String(re, 0, len));
- }
- // Log.i(TAG, builder.toString());
- in.close();
- String[] stats = builder.toString().split(" +", -1);
- if (stats.length >= 17) {
- long utime = StringUtils.parseLongSafe(stats[13], 10);
- long stime = StringUtils.parseLongSafe(stats[14], 10);
- long cutime = StringUtils.parseLongSafe(stats[15], 10);
- long cstime = StringUtils.parseLongSafe(stats[16], 10);
- // Log.i(TAG, String.format(
- // "utime:%d, stime:%d, cutime:%d, cstime:%d", utime,
- // stime, cutime, cstime));
- mypidStat = utime + stime + cutime + cstime;
- }
- } catch (IOException ex) {
- ex.printStackTrace();
- }
- try {
- String[] args = { "/system/bin/cat", "/proc/stat" };
- cmd = new ProcessBuilder(args);
- Process process = cmd.start();
- BufferedReader reader = new BufferedReader(new InputStreamReader(
- process.getInputStream()));
- String line = null;
- while ((line = reader.readLine()) != null) {
- Matcher matcher = pattern.matcher(line);
- if (matcher.matches()) {
- String[] stats = line.split(" +", -1);
- long tmpTotal = 0;
- for (int i = 1; i < stats.length; i++) {
- tmpTotal += StringUtils.parseLongSafe(stats[i], 10);
- }
- total = tmpTotal;
- }
- break;
- }
- if (first) {
- first = false;
- } else {
- Log.i(TAG, String.format("vsir cpu usage: %2.1f%%",
- (double) (mypidStat - oldMypidStat)
- / (total - oldTotal) * 100));
- }
- reader.close();
- } catch (IOException ex) {
- ex.printStackTrace();
- }
- }