android獲取手機cpu并判斷是單核還是多核

/**?
* 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獲取cpu和內存信息、網址的代碼，/** 獲取用戶硬件信息 */

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/** 獲取用戶硬件信息 */ public?static?String getMobileInfo() {? ????//StringBuffer sb = new StringBuffer();? ????JSONObject mbInfo =?new?JSONObject();? ???????? ????//通過反射獲取用戶硬件信息? ????try?{? ???? ????????Field[] fields = Build.class.getDeclaredFields();? ????????for?(Field field : fields) {? ????????????// 暴力反射,獲取私有信息? ????????????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;? }? ???? ???? ???? /** ?* 獲取設備內存大小值 ?* @return 內存大小,單位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;? }? ???? /** ?* 獲取android CPU類型 ?*? ?* @return String CPU類型 ?*/ 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;? }? ???? /** ?* 獲取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;? }? ???? /** ?* 獲取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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