Create folder in Android

Question

import java io File        File folder   new File Environment getExternalStorageDirectory       TollCulator        boolean success   true      if   folder exists                Toast makeText MainActivity this   Directory Does Not Exist  Create It   Toast LENGTH SHORT  show            success   folder mkdir              if  success              Toast makeText MainActivity this   Directory Created   Toast LENGTH SHORT  show          else             Toast makeText MainActivity this   Failed - Error   Toast LENGTH SHORT  show            The above should create a folder in my SD card if it does not exist  if it does then don t do anything  Although the toast works based on the condition but it doesn t create a directory when it does not exist  Any idea how to resolve it   My Manifest looks like this    lt  xml version  1 0  encoding  utf-8   gt   lt manifest xmlns android  http   schemas android com apk res android      package  com test testing      android versionCode  1      android versionName  1 0   gt        lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt        lt uses-sdk         android minSdkVersion  6          android targetSdkVersion  17    gt        lt application         android allowBackup  true          android icon   drawable ic launcher          android label   string app name          android theme   style AppTheme   gt           lt activity             android name  com test testing MainActivity              android label   string app name   gt               lt intent-filter gt                   lt action android name  android intent action MAIN    gt                    lt category android name  android intent category LAUNCHER    gt               lt  intent-filter gt           lt  activity gt       lt  application gt    lt  manifest gt    Update  I updated my manifest as well as updated my code but it s still not creating the folder in my SD card  Keep in mind  I am using Eclipse and running the app directly to my phone  GNex VZW  instead of using an AVD

User · Answer

If you are trying to make more than just one folder on the root of the sdcard, ex. Environment.getExternalStorageDirectory() + "/Example/Ex App/"

then instead of folder.mkdir() you would use folder.mkdirs()

I've made this mistake in the past & I took forever to figure it out.

User · Answer

Add this permission in Manifest   lt uses-permission android name  android permission WRITE EXTERNAL STORAGE   gt   File folder   new File Environment getExternalStorageDirectory                                   File separator    TollCulator    boolean success   true  if   folder exists          success   folder mkdirs      if  success           Do something on success   else          Do something else on failure         when u run the application go too DDMS- File Explorer- mnt   folder- sdcard folder- toll-creation folder

[java] Create folder in Android

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