android---获取设备相关信息

public class DevManager
{
private static final String TAG = "CpuManager";
Context mContext;

public DevManager()
{

}

public DevManager(Context context)
{
mContext = context;
}

// 获取CPU最大频率（单位KHZ）
// "/system/bin/cat" 命令行
// "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq" 存储最大频率的文件的路径
public static String getMaxCpuFreq()
{
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();
}

// 获取CPU最小频率（单位KHZ）
public static String getMinCpuFreq()
{
String result = "";
ProcessBuilder cmd;
try
{
String[] args = { "/system/bin/cat", "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_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();
}

// 实时获取CPU当前频率（单位KHZ）
public static String getCurCpuFreq()
{
String result = "N/A";
try
{
FileReader fr = new FileReader("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
BufferedReader br = new BufferedReader(fr);
String text = br.readLine();
result = text.trim();
} catch (FileNotFoundException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
}
return result;
}

// 获取CPU名字
public 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 (FileNotFoundException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
}
return null;
}

// 内存
public void getTotalMemory()
{
String str1 = "/proc/meminfo";
String str2 = "";
try
{
FileReader fr = new FileReader(str1);
BufferedReader localBufferedReader = new BufferedReader(fr, 8192);
while ((str2 = localBufferedReader.readLine()) != null)
{
Log.i(TAG, "---" + str2);
}
} catch (IOException e)
{
}
}

// rom大小
public long[] getRomMemroy()
{
long[] romInfo = new long[2];
// Total rom memory
romInfo[0] = getTotalInternalMemorySize();

// Available rom memory
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
romInfo[1] = blockSize * availableBlocks;
getVersion();
return romInfo;
}

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

// sd卡大小
public long[] getSDCardMemory()
{
long[] sdCardInfo = new long[2];
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state))
{
File sdcardDir = Environment.getExternalStorageDirectory();
StatFs sf = new StatFs(sdcardDir.getPath());
long bSize = sf.getBlockSize();
long bCount = sf.getBlockCount();
long availBlocks = sf.getAvailableBlocks();

sdCardInfo[0] = bSize * bCount;// 总大小
sdCardInfo[1] = bSize * availBlocks;// 可用大小
}
return sdCardInfo;
}

// 电池容量
private BroadcastReceiver batteryReceiver = new BroadcastReceiver()
{

@Override
public void onReceive(Context context, Intent intent)
{
int level = intent.getIntExtra("level", 0);
// level加%就是当前电量了
}
};

//    registerReceiver(batteryReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));

// 系统版本信息
public String[] getVersion()
{
String[] version = { "null", "null", "null", "null" };
String str1 = "/proc/version";
String str2;
String[] arrayOfString;
try
{
FileReader localFileReader = new FileReader(str1);
BufferedReader localBufferedReader = new BufferedReader(localFileReader, 8192);
str2 = localBufferedReader.readLine();
arrayOfString = str2.split("\\s+");
version[0] = arrayOfString[2];// KernelVersion
localBufferedReader.close();
} catch (IOException e)
{
}
version[1] = Build.VERSION.RELEASE;// firmware version
version[2] = Build.MODEL;// model
version[3] = Build.DISPLAY;// system version
return version;
}

// mac地址和开机时间
public String[] getOtherInfo()
{
String[] other = { "null", "null" };
WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
if (wifiInfo.getMacAddress() != null)
{
other[0] = wifiInfo.getMacAddress();
}
else
{
other[0] = "Fail";
}
other[1] = getTimes();
return other;
}

private String getTimes()
{
long ut = SystemClock.elapsedRealtime() / 1000;
if (ut == 0)
{
ut = 1;
}
int m = (int) ((ut / 60) % 60);
int h = (int) ((ut / 3600));
//        return h + " " + mContext.getString(R.string.info_times_hour) + m + " " + mContext.getString(R.string.info_times_minute);
return h + " " + "时" + m + " " + "分";
}
}