Java tutorial
//package com.java2s; //License from project: Apache License import android.os.Environment; import java.io.File; public class Main { public static String getAppPath() { String dir = getSDcardDir() + "leanchat/"; return checkAndMkdirs(dir); } public static String getSDcardDir() { return Environment.getExternalStorageDirectory().getPath() + "/"; } public static String checkAndMkdirs(String dir) { File file = new File(dir); if (file.exists() == false) { file.mkdirs(); } return dir; } }