mkdir() works while inside internal flash storage, but not SD card?

Question

I am currently building a file management app that allows the user to browse the file system of their device. The user starts off in the root directory / of the

Answer 1

path.mkdir() fails also when the directory already exists. You can add a check first:

if (!path.exists()) {
   boolean success = path.mkdir();
   Log.d(TAG, path.getAbsolutePath() + FOLDER_CREATION_SUCCESS + success);
   path.delete();
} else {
   Log.d(TAG, path.getAbsolutePath() + "already exists");
}