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

Question

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 1

To create a directory you can use the following code:

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

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