Android获取cpu和内存信息、网址的代码

时间:2021-09-17 11:43:56

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; 
}