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 = new BufferedReader(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; }

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