Java tutorial
//package com.java2s; import android.content.Context; import android.telephony.TelephonyManager; public class Main { public static String getDeviceId(Context context) { if (context != null) { try { TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); String device_id = tm.getDeviceId(); return device_id; } catch (Exception e) { } } return null; } }