Java tutorial
//package com.java2s; /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ import android.os.Environment; public class Main { public static boolean isExternalMemoryWritable() { String externalStorageState = Environment.getExternalStorageState(); return externalStorageState.equals(Environment.MEDIA_MOUNTED); } }