android获取硬件信息

1.获取CPU型号

private 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(FileNotFoundExecption e){
    e.printStackTrace();
  }catch (IOException e){
     e.printStackTrace();
  }
   return null;
}

2.获取CPU核心数

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;
    }
}

3.获取CPU最大频率

public static String getMinCpuFreq() {  
            String result = "";  
            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();  
                    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();  
    } 

4.RAM内存大小

private long getRamMemory(Context context){
        String str1 = "/proc/meminfo";// 系统内存信息文件
        String str2;
        String[] arrayOfString;
        long initial_memory = 0; 

        try
        {
            FileReader localFileReader = new FileReader(str1);
            BufferedReader localBufferedReader = new BufferedReader(
            localFileReader, 8192);
            str2 = localBufferedReader.readLine();// 读取meminfo第一行，系统总内存大小

            arrayOfString = str2.split("\\s+");
            for (String num : arrayOfString) {
                Log.i(str2, num + "\t");
            }

            initial_memory = Integer.valueOf(arrayOfString[1]).intValue() * 1024;// 获得系统总内存，单位是KB，乘以1024转换为Byte
            localBufferedReader.close();

        } catch (IOException e) {
        }
        //return Formatter.formatFileSize(context, initial_memory);// Byte转换为KB或者MB，内存大小规格化
        System.out.println("总运存--->>>"+initial_memory/(1024*1024));
        return initial_memory/(1024*1024);
    }

5.ROM大小

public long getTotalInternalMemorySize() {    
        File path = Environment.getDataDirectory();    
        StatFs stat = new StatFs(path.getPath());    
        long blockSize = stat.getBlockSize();    
        long totalBlocks = stat.getBlockCount();    
        return totalBlocks * blockSize;    
    }   

6.获取屏幕分辨率

private String getScreenResolution(){
    DisplayMetrics dm = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(dm);
   String strOpt = dm.widthPixels + " * " + dm.heightPixels;
   return strOpt;
}