getObbDirs

Returns absolute paths to application-specific directories on all external storage devices where the application's OBB files (if there are any) can be found. Note if the application does not have any OBB files, these directories may not exist.

This is like getFilesDir in that these files will be deleted when the application is uninstalled, however there are some important differences:

• External files are not always available: they will disappear if the user mounts the external storage on a computer or removes it.
• There is no security enforced with these files.

External storage devices returned here are considered a permanent part of the device, including both emulated external storage and physical media slots, such as SD cards in a battery compartment. The returned paths do not include transient devices, such as USB flash drives.

An application may store data on any or all of the returned devices. For example, an app may choose to store large files on the device with the most available space, as measured by StatFs.

Starting in KITKAT, no permissions are required to write to the returned paths; they're always accessible to the calling app. Before then, WRITE_EXTERNAL_STORAGE is required to write. Write access outside of these paths on secondary external storage devices is not available. To request external storage access in a backwards compatible way, consider using android:maxSdkVersion like this:

<uses-permission
    android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="18" />

The first path returned is the same as getObbDir. Returned paths may be null if a storage device is unavailable.

See also