How to Overcome Directory Creation Issues in Android 10 and Above?

Unable to Create Directories in Android 10: Solutions and Workarounds

Introduction

In Android 10 and later versions, developers may encounter difficulties creating directories in external storage locations. This article explains the reason behind this issue and provides potential solutions and workarounds.

Issue Description

Android 10 and subsequent releases have restricted access to arbitrary locations on external storage. As a result, traditional methods of creating directories using File.mkdir() or Files.createDirectory() may fail with AccessDeniedException.

Cause

This restriction is due to Android's enhanced privacy measures, which aim to prevent apps from accessing sensitive user data without explicit user permission.

Solutions and Workarounds

Developers have several options to address this issue:

Opting into Legacy Storage Model

• Add android:requestLegacyExternalStorage="true" to the element in the manifest. This allows the app to continue using the legacy external storage permissions. However, this option is only available for Android 10 and 11.

Using Context-Based Directories

• Utilize methods like getExternalFilesDir() to access directories on external storage that the app has permission to write to. No additional permissions are required for this approach. However, data stored in these directories is deleted when the app is uninstalled.

Employing Storage Access Framework (SAF)

• Use SAF to request user permission to access and manage specific files and directories. This method provides greater control over file access but requires additional permissions and user interaction.

Media Storage

• If the content to be stored is media-related, consider using MediaStore to place it in standard media locations. This approach ensures proper organization and accessibility in the device's media library.

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