Java tutorial
//package com.java2s; import android.os.Environment; public class Main { public static String getExtPath() { String path = ""; if (hasSDCard()) { path = Environment.getExternalStorageDirectory().getPath(); } return path; } public static boolean hasSDCard() { boolean b = false; if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) { b = true; } return b; } }