android系统获取系统相关信息（如Android设备的唯一ID等）（源码）

package android.seek.service.appdevice.util;

import android.content.Context;

import android.content.SharedPreferences;

import android.content.SharedPreferences.Editor;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.net.NetworkInfo.State;

import android.net.wifi.WifiInfo;

import android.net.wifi.WifiManager;

import android.os.Build;

import android.provider.Settings.Secure;

import android.telephony.TelephonyManager;

import android.text.TextUtils;

import java.lang.reflect.Method;

import java.util.Random;

public class PhoneInfo

{

public static final String IMEI = "imei";

public static final String IMSI = "imsi";

public static final String MACADDRESS = "mac_address";

private static String a()

{

StringBuffer localStringBuffer1 = new StringBuffer();

long l1 = System.currentTimeMillis();

String str = Long.toString(l1);

localStringBuffer1.append(str.substring(-5 + str.length()));

StringBuffer localStringBuffer2 = new StringBuffer();

localStringBuffer2.append(Build.MODEL.replaceAll(" ", ""));

while (localStringBuffer2.length() < 6)

localStringBuffer2.append('0');

localStringBuffer1.append(localStringBuffer2.substring(0, 6));

Random localRandom = new Random(l1);

for (long l2 = 0L; l2 < 4096L; l2 = localRandom.nextLong());

localStringBuffer1.append(Long.toHexString(l2).substring(0, 4));

return localStringBuffer1.toString();

}

public static boolean checkNetWork(Context paramContext)

{

ConnectivityManager localConnectivityManager = (ConnectivityManager)paramContext.getSystemService("connectivity");

if (localConnectivityManager == null);

NetworkInfo[] arrayOfNetworkInfo;

do

{

return false;

arrayOfNetworkInfo = localConnectivityManager.getAllNetworkInfo();

}

while (arrayOfNetworkInfo == null);

int i = arrayOfNetworkInfo.length;

int j = 0;

if (j < i)

{

NetworkInfo localNetworkInfo = arrayOfNetworkInfo[j];

if (localNetworkInfo != null)

{

NetworkInfo.State localState = localNetworkInfo.getState();

if ((localState == null) || ((localState != NetworkInfo.State.CONNECTED) && (localState != NetworkInfo.State.CONNECTING)));

}

}

for (boolean bool = true; ; bool = false)

{

return bool;

j++;

break;

}

}

public static String getAndroidId(Context paramContext)

{

return Settings.Secure.getString(paramContext.getContentResolver(), "android_id");

}

public static String getImei(Context paramContext)

{

SharedPreferences localSharedPreferences = paramContext.getSharedPreferences("imei", 0);

String str1 = localSharedPreferences.getString("imei", null);

if ((str1 == null) || (str1.length() == 0))

{

String str2 = ((TelephonyManager)paramContext.getSystemService("phone")).getDeviceId();

if ((str2 == null) || (str2.length() == 0))

str2 = a();

for (str1 = str2.replaceAll(" ", "").trim(); str1.length() < 15; str1 = "0" + str1);

SharedPreferences.Editor localEditor = localSharedPreferences.edit();

localEditor.putString("imei", str1);

localEditor.commit();

}

return str1.trim();

}

public static String getImsi(Context paramContext)

{

SharedPreferences localSharedPreferences = paramContext.getSharedPreferences("imei", 0);

String str1 = localSharedPreferences.getString("imsi", null);

if ((str1 == null) || (str1.length() == 0))

{

String str2 = ((TelephonyManager)paramContext.getSystemService("phone")).getSubscriberId();

if ((str2 == null) || (str2.length() == 0))

str2 = a();

for (str1 = str2.replaceAll(" ", "").trim(); str1.length() < 15; str1 = "0" + str1);

SharedPreferences.Editor localEditor = localSharedPreferences.edit();

localEditor.putString("imsi", str1);

localEditor.commit();

}

return str1;

}

public static String getLocalMacAddress(Context paramContext)

{

String str = ((WifiManager)paramContext.getSystemService("wifi")).getConnectionInfo().getMacAddress();

if ((str == null) || ("".equals(str)))

return paramContext.getSharedPreferences("mac_address", 0).getString("mac_address", "");

SharedPreferences.Editor localEditor = paramContext.getSharedPreferences("mac_address", 0).edit();

localEditor.putString("mac_address", str);

localEditor.commit();

return str;

}

public static String getOriginalImei(Context paramContext)

{

String str = ((TelephonyManager)paramContext.getSystemService("phone")).getDeviceId();

if (str != null)

str = str.trim();

return str;

}

public static String getOriginalImsi(Context paramContext)

{

String str = ((TelephonyManager)paramContext.getSystemService("phone")).getSubscriberId();

if (str != null)

str = str.trim();

return str;

}

public static String getSerialNum()

{

try

{

Class localClass = Class.forName("android.os.SystemProperties");

String str = (String)localClass.getMethod("get", new Class[] { String.class, String.class }).invoke(localClass, new Object[] { "ro.serialno", "unknown" });

return str;

}

catch (Exception localException)

{

}

return null;

}

public static boolean hasWap(Context paramContext)

{

for (NetworkInfo localNetworkInfo : ((ConnectivityManager)paramContext.getSystemService("connectivity")).getAllNetworkInfo())

if (localNetworkInfo != null)

{

NetworkInfo.State localState = localNetworkInfo.getState();

if ((NetworkInfo.State.CONNECTED == localState) && (localNetworkInfo.getType() == 0))

{

String str = localNetworkInfo.getExtraInfo();

if (TextUtils.isEmpty(str))

return false;

return str.toUpperCase().indexOf("WAP") != -1;

}

}

return false;

}

}