Android获取cpu和内存信息、网址的代码

 

android获取手机cpu并判断是单核还是多核

/** 
* Gets the number of cores available in this device, across all processors. 
* Requires: Ability to peruse the filesystem at "/sys/devices/system/cpu" 
* @return The number of cores, or 1 if failed to get result 
*/ 
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()); 
//Return the number of cores (virtual CPU devices) 
return files.length; 
} catch(Exception e) { 
//Default to return 1 core 
return 1; 
} 
}

 

Android获取cpu和内存信息、网址的代码，/** 获取用户硬件信息 */

 

 

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/** 获取用户硬件信息 */ public static String getMobileInfo() {      //StringBuffer sb = new StringBuffer();      JSONObject mbInfo = new JSONObject();               //通过反射获取用户硬件信息      try {               Field[] fields = Build.class.getDeclaredFields();          for (Field field : fields) {              // 暴力反射,获取私有信息              field.setAccessible(true);              String name = field.getName();              String value = field.get(null).toString();              //sb.append(name + "=" + value);              //sb.append("n");              mbInfo.put(name, value);          }      } catch (Exception e) {          e.printStackTrace();      }               //return sb.toString();      return mbInfo.toString();  }            static public String getCpuString(){      if(Build.CPU_ABI.equalsIgnoreCase("x86")){          return "Intel";      }               String strInfo = "";      try     {          byte[] bs = new byte[1024];          RandomAccessFile reader = new RandomAccessFile("/proc/cpuinfo","r");          reader.read(bs);          String ret = new String(bs);          int index = ret.indexOf(0);          if(index != -1) {              strInfo = ret.substring(0, index);          } else {              strInfo = ret;          }      }      catch (IOException ex){          ex.printStackTrace();      }               return strInfo;  }       static public String getCpuType(){      String strInfo = getCpuString();      String strType = null;               if (strInfo.contains("ARMv5")) {          strType = "armv5";      } else if (strInfo.contains("ARMv6")) {          strType = "armv6";      } else if (strInfo.contains("ARMv7")) {          strType = "armv7";      } else if (strInfo.contains("Intel")){          strType = "x86";      }else{          strType = "unknown";          return strType;      }               if (strInfo.contains("neon")) {          strType += "_neon";      }else if (strInfo.contains("vfpv3")) {          strType += "_vfpv3";      }else if (strInfo.contains(" vfp")) {          strType += "_vfp";      }else{          strType += "_none";      }               return strType;  }                 /**  * @hide  * @return  */ public static CPUInfo getCPUInfo() {      String strInfo = null;      try     {          byte[] bs = new byte[1024];          RandomAccessFile reader = new RandomAccessFile("/proc/cpuinfo","r");          reader.read(bs);          String ret = new String(bs);          int index = ret.indexOf(0);          if(index != -1) {              strInfo = ret.substring(0, index);          } else {              strInfo = ret;          }      }      catch (IOException ex)      {          strInfo = "";          ex.printStackTrace();      }               CPUInfo info = parseCPUInfo(strInfo);      info.mCPUMaxFreq = getMaxCpuFreq();                       return info;  }            private final static String kCpuInfoMaxFreqFilePath ="/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq";  private static int getMaxCpuFreq() {      int result = 0;      FileReader fr = null;      BufferedReader br = null;      try {          fr = new FileReader(kCpuInfoMaxFreqFilePath);          br = new BufferedReader(fr);          String text = br.readLine();          if (text != null) {              result = Integer.parseInt(text.trim());          }      } catch (FileNotFoundException e) {          e.printStackTrace();      } catch (IOException e) {          e.printStackTrace();      } finally {          if (fr != null)              try {                  fr.close();              } catch (IOException e) {                  // TODO Auto-generated catch block                  e.printStackTrace();              }          if (br != null)              try {                  br.close();              } catch (IOException e) {                  // TODO Auto-generated catch block                  e.printStackTrace();              }      }           return result;  }           public static class CPUInfo{      public CPUInfo(){                   }               public static final int CPU_TYPE_UNKNOWN            =   0x00000000;      public static final int CPU_TYPE_ARMV5TE            =   0x00000001;      public static final int CPU_TYPE_ARMV6              =   0x00000010;      public static final int CPU_TYPE_ARMV7              =   0x00000100;               public static final int CPU_FEATURE_UNKNOWS         =   0x00000000;      public static final int CPU_FEATURE_VFP             =   0x00000001;      public static final int CPU_FEATURE_VFPV3           =   0x00000010;      public static final int CPU_FEATURE_NEON            =   0x00000100;               public int mCPUType;      public int mCPUCount;      public int mCPUFeature;           public double mBogoMips;      public long mCPUMaxFreq;  }       /**  *   * @param cpuInfo  * @return  * @hide  */ private static CPUInfo parseCPUInfo(String cpuInfo) {      if (cpuInfo == null || "".equals(cpuInfo)) {          return null;      }           CPUInfo ci = new CPUInfo();      ci.mCPUType = CPUInfo.CPU_TYPE_UNKNOWN;      ci.mCPUFeature = CPUInfo.CPU_FEATURE_UNKNOWS;      ci.mCPUCount = 1;      ci.mBogoMips = 0;           if (cpuInfo.contains("ARMv5")) {          ci.mCPUType = CPUInfo.CPU_TYPE_ARMV5TE;      } else if (cpuInfo.contains("ARMv6")) {          ci.mCPUType = CPUInfo.CPU_TYPE_ARMV6;      } else if (cpuInfo.contains("ARMv7")) {          ci.mCPUType = CPUInfo.CPU_TYPE_ARMV7;      }           if (cpuInfo.contains("neon")) {          ci.mCPUFeature |= CPUInfo.CPU_FEATURE_NEON;      }           if (cpuInfo.contains("vfpv3")) {          ci.mCPUFeature |= CPUInfo.CPU_FEATURE_VFPV3;      }           if (cpuInfo.contains(" vfp")) {          ci.mCPUFeature |= CPUInfo.CPU_FEATURE_VFP;      }           String[] items = cpuInfo.split("n");           for (String item : items) {          if (item.contains("CPU variant")) {              int index = item.indexOf(": ");              if (index >= 0) {                  String value = item.substring(index + 2);                  try {                      ci.mCPUCount = Integer.decode(value);                      ci.mCPUCount = ci.mCPUCount == 0 ? 1 : ci.mCPUCount;                  } catch (NumberFormatException e) {                      ci.mCPUCount = 1;                  }              }          } else if (item.contains("BogoMIPS")) {              int index = item.indexOf(": ");              if (index >= 0) {                  String value = item.substring(index + 2);              }          }      }               return ci;  }                 /**  * 获取设备内存大小值  * @return 内存大小,单位MB  */ public static long getTotalMemory() {       String str1 = "/proc/meminfo";      String str2;              String[] arrayOfString;      long initial_memory = 0;      try {          FileReader localFileReader = new FileReader(str1);          BufferedReader localBufferedReader = newBufferedReader(localFileReader, 8192);          str2 = localBufferedReader.readLine();          if (str2 != null) {              arrayOfString = str2.split("s+");              initial_memory = Integer.valueOf(arrayOfString[1]).intValue()/1024;          }          localBufferedReader.close();          return initial_memory;      }       catch (IOException e)       {                 return -1;      }  }            /**  * @hide  * @return  */ public CPUInfo getCPUInfo() {      String strInfo = null;      try     {          byte[] bs = new byte[1024];          RandomAccessFile reader = new RandomAccessFile("/proc/cpuinfo","r");          reader.read(bs);          String ret = new String(bs);          int index = ret.indexOf(0);          if(index != -1) {              strInfo = ret.substring(0, index);          } else {              strInfo = ret;          }      }      catch (IOException ex)      {          strInfo = "";          ex.printStackTrace();      }               CPUInfo info = parseCPUInfo(strInfo);      info.mCPUMaxFreq = getMaxCpuFreq();                       return info;  }       /**  * 获取android CPU类型  *   * @return String CPU类型  */ public static String getCpuModel(){      String cpu_model = "";           CPUInfo in = getCPUInfo();                     if ((in.mCPUType & CPUInfo.CPU_TYPE_ARMV5TE) == CPUInfo.CPU_TYPE_ARMV5TE)          cpu_model="armv5";      else if ((in.mCPUType & CPUInfo.CPU_TYPE_ARMV6) == CPUInfo.CPU_TYPE_ARMV6)          cpu_model="armv6";      else if ((in.mCPUType & CPUInfo.CPU_TYPE_ARMV7) == CPUInfo.CPU_TYPE_ARMV7)          cpu_model="armv7";      else         cpu_model="unknown";      return cpu_model;  }       /**  * 获取android CPU特性  *   * @return String CPU特性  */ public static String getCpuFeature(){      String cpu_feature = "";                   CPUInfo in = getCPUInfo();                       if ((in.mCPUFeature & CPUInfo.CPU_FEATURE_NEON ) == CPUInfo.CPU_FEATURE_NEON)          cpu_feature="neon";      else if ((in.mCPUFeature & CPUInfo.CPU_FEATURE_VFP ) == CPUInfo.CPU_FEATURE_VFP)          cpu_feature="vfp";      else if ((in.mCPUFeature & CPUInfo.CPU_FEATURE_VFPV3 ) == CPUInfo.CPU_FEATURE_VFPV3)          cpu_feature="vfpv3";      else         cpu_feature="unknown";       return cpu_feature;  }       /**  * 获取ip地址  *   * @param mContext  Context  * @return ip地址字符串  */ public static String getIpAddress(Context mContext) {      String ipAddress = null;      try {          for (Enumeration<NetworkInterface> en = NetworkInterface                  .getNetworkInterfaces(); en.hasMoreElements();) {              NetworkInterface intf = en.nextElement();              for (Enumeration<InetAddress> enumIpAddr = intf                      .getInetAddresses(); enumIpAddr.hasMoreElements();) {                  InetAddress inetAddress = enumIpAddr.nextElement();                  if (!inetAddress.isLoopbackAddress()) {                      ipAddress = inetAddress.getHostAddress().toString();                   }              }          }      } catch (SocketException ex) {          return null;      }      if (DEBUG) {          Log.d(TAG, "ip address:" + ipAddress);      }      return ipAddress;  }