Java tutorial
//package com.java2s; /* * Copyright (C) 2014 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.content.Context; import android.content.SharedPreferences; import android.preference.PreferenceManager; public class Main { private static final String FM_IS_FIRST_TIME_PLAY = "fm_is_first_time_play"; /** * check it is the first time to use Fm */ public static boolean isFirstTimePlayFm(Context context) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); boolean isFirstTime = prefs.getBoolean(FM_IS_FIRST_TIME_PLAY, true); return isFirstTime; } }