Java tutorial
//package com.java2s; import java.io.File; import android.os.StatFs; public class Main { public static boolean isAvailableExternalMemory(File paramFile) { StatFs localStatFs = new StatFs(paramFile.getPath()); return (int) (localStatFs.getBlockSize() * localStatFs.getAvailableBlocks() / 1048576L) > 15; } }