Java tutorial
//package com.java2s; import android.content.Context; import android.content.SharedPreferences; public class Main { public static final String PRFERENCE_NAME_SYT = "preference_syt"; private static final String REGISTRATION_ID = "registration_id"; public static String getRegistrationId(Context context) { SharedPreferences prefs = getSharedPreference(context); return prefs.getString(REGISTRATION_ID, ""); } public static SharedPreferences getSharedPreference(Context context) { return context.getSharedPreferences(PRFERENCE_NAME_SYT, Context.MODE_PRIVATE); } public static SharedPreferences getSharedPreference(String name, Context context) { return context.getSharedPreferences(name, Context.MODE_PRIVATE); } }