Android中获取唯一的ID的几种方法

package net.pocketmagic.android.androididsample; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import android.app.Activity; import android.bluetooth.BluetoothAdapter; import android.content.Context; import android.net.wifi.WifiManager; import android.os.Build; import android.os.Bundle; import android.provider.Settings.Secure; import android.telephony.TelephonyManager; import android.widget.TextView; /* * Android Device ID * * (C)2011 Radu Motisan * http://www.pocketmagic.net * radu.motisan@gmail.com */ public class AndroidIDSample extends Activity { /** Called when the activity is first created. */ TextView m_tv; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); m_tv = new TextView(this); setContentView(m_tv); //1 compute IMEI TelephonyManager TelephonyMgr = (TelephonyManager)getSystemService(TELEPHONY_SERVICE); String m_szImei = TelephonyMgr.getDeviceId(); // Requires READ_PHONE_STATE //2 compute DEVICE ID String m_szDevIDShort = "35" + //we make this look like a valid IMEI Build.BOARD.length()%10+ Build.BRAND.length()%10 + Build.CPU_ABI.length()%10 + Build.DEVICE.length()%10 + Build.DISPLAY.length()%10 + Build.HOST.length()%10 + Build.ID.length()%10 + Build.MANUFACTURER.length()%10 + Build.MODEL.length()%10 + Build.PRODUCT.length()%10 + Build.TAGS.length()%10 + Build.TYPE.length()%10 + Build.USER.length()%10 ; //13 digits //3 android ID - unreliable String m_szAndroidID = Secure.getString(getContentResolver(), Secure.ANDROID_ID); //4 wifi manager, read MAC address - requires android.permission.ACCESS_WIFI_STATE or comes as null WifiManager wm = (WifiManager)getSystemService(Context.WIFI_SERVICE); String m_szWLANMAC = wm.getConnectionInfo().getMacAddress(); //5 Bluetooth MAC address android.permission.BLUETOOTH required BluetoothAdapter m_BluetoothAdapter = null; // Local Bluetooth adapter m_BluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); String m_szBTMAC = m_BluetoothAdapter.getAddress(); //6 SUM THE IDs String m_szLongID = m_szImei + m_szDevIDShort + m_szAndroidID+ m_szWLANMAC + m_szBTMAC; MessageDigest m = null; try { m = MessageDigest.getInstance("MD5"); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } m.update(m_szLongID.getBytes(),0,m_szLongID.length()); byte p_md5Data[] = m.digest(); String m_szUniqueID = new String(); for (int i=0;i<p_md5Data.length;i++) { int b = (0xFF & p_md5Data[i]); // if it is a single digit, make sure it have 0 in front (proper padding) if (b <= 0xF) m_szUniqueID+="0"; // add number to string m_szUniqueID+=Integer.toHexString(b); } m_szUniqueID = m_szUniqueID.toUpperCase(); m_tv.setText("Android Unique Device ID\n\n\n\n"+ "IMEI:> "+m_szImei+ "\nDeviceID:> "+m_szDevIDShort+ "\nAndroidID:> "+m_szAndroidID+ "\nWLANMAC:> "+m_szWLANMAC+ "\nBTMAC:> "+m_szBTMAC+ "\n\nUNIQUE ID:>"+m_szUniqueID + "\n\n\n(C) 2011 - PocketMagic.net"); } }