How to create a directory in Android?

Question

Everything is in the question. Here is my code :

    private void createDirectory(File currentDirectory) {
  File f = null;
  try {

   f = new File(current         


        

Answer 1

First, please use the File constructor that takes a File for your directory and a String for your desired subdirectory.

Beyond that, most likely you are attempting to create a directory where you are not allowed, either because:

• currentDirectory does not exist, or
• currentDirectory points to a place on the on-board flash storage where you are not allowed to write, or
• currentDirectory points to a place on the external storage and you lack the WRITE_EXTERNAL_STORAGE permission