Java tutorial
//package com.java2s; //License from project: Open Source License import android.os.Environment; import android.os.StatFs; public class Main { private static final int MB = 1024 * 1024; private static int MIN_SIZE_MB = 10; public static boolean isAvaiableSpace() { int size = (int) getFreeSpaceOnSd() / MB; return size > MIN_SIZE_MB; } public static long getFreeSpaceOnSd() { StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath()); //double sdFreeMB = ((double)stat.getAvailableBlocks() * (double) stat.getBlockSize()) / MB; return stat.getAvailableBlocks() * stat.getBlockSize(); } }