Here you can find the source of sdCardIsWork()
public static boolean sdCardIsWork()
//package com.java2s; /*//from w w w .j av a 2 s .c o m * Copyright (C) 2014 The AppCan Open Source Project. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * */ import android.os.Environment; public class Main { public static boolean sdCardIsWork() { if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { return true; } return false; } }