Java tutorial
//package com.java2s; import android.content.Context; import android.telephony.TelephonyManager; import android.text.TextUtils; public class Main { public static String getIMEI(Context context) { TelephonyManager mTelephonyMgr = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); String imei = mTelephonyMgr.getDeviceId(); if (TextUtils.isEmpty(imei) || imei.equals("000000000000000")) { imei = "0"; } return imei; } }