James James - 1 year ago 72
Android Question

How can I create a new directory on the SD card programmatically?

I want to create a new directory inside the SD card programmatically and I want to delete that directory also. How can I do this?

Answer Source

To create a directory you can use the following code:

File dir = new File("path/to/your/directory");
  if(dir.mkdir()) {
     System.out.println("Directory created");
  } else {
     System.out.println("Directory is not created");
}catch(Exception e){

To delete an empty directory, you can use this code:

boolean success = (new File("your/directory/name")).delete();
if (!success) {
   System.out.println("Deletion failed!");

To delete a non-empty directory, you can use this code:

public static boolean deleteDir(File dir) {
    if (dir.isDirectory()) {
        String[] children = dir.list();
        for (int i=0; i<children.length; i++) {
            boolean success = deleteDir(new File(dir, children[i]));
            if (!success) {
                return false;

    return dir.delete();

Maybe you also need this permission:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

This answer is also a good resource:

How to create directory automatically on SD card

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