Java tutorial
//package com.java2s; //License from project: Open Source License import android.os.Environment; import java.io.File; public class Main { public static boolean createDirectoryIfNecessary(String sdFolderName) { File dir = new File(Environment.getExternalStorageDirectory().getPath() + "/" + sdFolderName + "/"); return !dir.exists() && dir.mkdirs(); } }