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Uploading Visual Studio Projects on Google Drive Virus

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The majority of apps that require shared storage access can follow the best practices for sharing media files and sharing not-media files. However, some apps have a core utilise case that requires wide admission of files on a device, only cannot do so efficiently using the privacy-friendly storage best practices. Android provides a special app access chosen All files access for these situations.

For example, an anti-virus app's primary use case might require regular scanning of many files across dissimilar directories. If this scanning requires repeated user interactions to select directories using the system file picker, it may provide a poor user experience. Other use cases—such equally file managing director apps, fill-in and restore apps, and certificate management apps—may require similar considerations.

Asking All files admission

An app can request All files access from the user by doing the following:

  1. Declare the MANAGE_EXTERNAL_STORAGE permission in the manifest.
  2. Use the ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION intent action to directly users to a system settings page where they can enable the following option for your app: Allow access to manage all files.

To decide whether your app has been granted the MANAGE_EXTERNAL_STORAGE permission, phone call Environment.isExternalStorageManager().

Operations that MANAGE_EXTERNAL_STORAGE allows

The MANAGE_EXTERNAL_STORAGE permission grants the following:

  • Read and write access to all files within shared storage.

  • Access to the contents of the MediaStore.Files table.

  • Access to the root directory of both the USB on-the-become (OTG) drive and the SD menu.

  • Write access to all internal storage directories⁠, except for /Android/information/, /sdcard/Android, and near subdirectories of /sdcard/Android. This write access includes direct file path admission.

    Apps that are granted this permission notwithstanding cannot access the app-specific directories that vest to other apps because these directories appear as subdirectories of Android/data/ on a storage volume.

When an app has the MANAGE_EXTERNAL_STORAGE permission, it can access these additional files and directories using either the MediaStore API or direct file paths. When you apply the Storage Access Framework, even so, yous tin can merely access a file or directory if you could practice so without having the MANAGE_EXTERNAL_STORAGE permission.

Invoke another app's storage management activity

On Android 12 (API level 31) and college, apps that have both the MANAGE_EXTERNAL_STORAGE permission and the QUERY_ALL_PACKAGES permission—such as file management apps—tin can use the getManageSpaceActivityIntent() to transport users to another app's custom space direction activeness.

The getManageSpaceActivityIntent() method takes in a package proper noun and a asking lawmaking, and it returns i of the following:

  • A PendingIntent, if the app with the specified parcel name has divers a custom "manage space" action. The file management app that chosen the getManageSpaceActivityIntent() method tin can then invoke the returned intent to send users to the custom activeness.
  • null, if the app with the specified package name doesn't define a "manage space" action.

Enable MANAGE_EXTERNAL_STORAGE for testing

To explore how the MANAGE_EXTERNAL_STORAGE permission affects your app, you can enable the permission for testing purposes. To do so, run the following control on the machine that'south connected to your examination device:

adb shell appops ready --uid          PACKAGE_NAME          MANAGE_EXTERNAL_STORAGE allow

Google Play observe

This section provides a notice for developers who publish apps on Google Play.

To limit broad admission to shared storage, the Google Play store has updated its policy to evaluate apps that target Android 11 (API level xxx) or higher and asking "All files access" through the MANAGE_EXTERNAL_STORAGE permission. This policy takes consequence in May 2021.

When your app targets Android 11 or higher, and information technology declares the MANAGE_EXTERNAL_STORAGE permission, Android Studio shows the lint warning that appears in figure 1. This warning reminds you that "the Google Play store has a policy that limits usage of" the permission.

Figure 1. Lint warning in Android Studio that reminds you about the Google Play policy regarding the MANAGE_EXTERNAL_STORAGE permission.

Yous should asking the MANAGE_EXTERNAL_STORAGE permission only when your app cannot effectively make use of the more than privacy-friendly APIs, such as Storage Access Framework or the Media Store API. Additionally, the app's usage of the permission must autumn within permitted uses, and must exist directly tied to the cadre functionality of the app. If your app includes a use case that'due south similar to the following examples, information technology's likely to be immune to request the MANAGE_EXTERNAL_STORAGE permission:

  • File managers
  • Backup and restore apps
  • Anti-virus apps
  • Document management apps
  • On-device file search
  • Disk and file encryption
  • Device-to-device data migration

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Source: https://developer.android.com/training/data-storage/manage-all-files

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