Java tutorial
//package com.java2s; //License from project: Apache License import java.io.File; import java.io.FilenameFilter; import android.os.Environment; public class Main { private static final FilenameFilter narFilter = new FilenameFilter() { public boolean accept(File dir, String filename) { if (filename.endsWith(".nar") || filename.endsWith(".zip")) return true; return false; } }; public static String[] listNarDir() { File narDir = new File(Environment.getExternalStorageDirectory(), "nar"); if (narDir.exists() == false || narDir.isDirectory() == false) return null; String[] ret = narDir.list(narFilter); return ret; } }