Android获取CPU信息(CPU名字和主频)

文章参照自：http://www.2cto.com/kf/201206/134236.html

在Android中，我们可以通过读取一些系统文件来获得手机的cpu信息(CPU名字和CPU主频)。

具体请参照实例1.

实例1

package edu.cdut.robin;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class CPUTool
{
    private final static String kCpuInfoMaxFreqFilePath = "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq";

    public 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();
            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;
    }

    private final static String kCpuInfoMinFreqFilePath = "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq";

    /* 获取CPU最小频率（单位KHZ） */
    public static int getMinCpuFreq()
    {
        int result = 0;
        FileReader fr = null;
        BufferedReader br = null;
        try
        {
            fr = new FileReader(kCpuInfoMinFreqFilePath);
            br = new BufferedReader(fr);
            String text = br.readLine();
            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;
    }

    private final static String kCpuInfoCurFreqFilePath = "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq";

    /* 实时获取CPU当前频率（单位KHZ） */
    public static int getCurCpuFreq()
    {
        int result = 0;
        FileReader fr = null;
        BufferedReader br = null;
        try
        {
            fr = new FileReader(kCpuInfoCurFreqFilePath);
            br = new BufferedReader(fr);
            String text = br.readLine();
            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;
    }

    /* 获取CPU名字 */
    public static String getCpuName()
    {
        FileReader fr = null;
        BufferedReader br = null;
        try
        {
            fr = new FileReader("/proc/cpuinfo");
            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 (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 null;
    }
}

结束