Android-specific storage locations and MediaStore integration.
External files directory
external_files_dir/1 returns the app's scoped directory on external
storage (getExternalFilesDir). This is visible to the user via a file
manager or USB, but scoped to the app — no WRITE_EXTERNAL_STORAGE
permission required. Returns nil if external storage is unavailable.
Common type atoms: :documents, :pictures, :movies, :music,
:downloads, :dcim. Maps to Environment.DIRECTORY_* constants.
MediaStore
save_to_media_store/3 inserts a file into the Android media library
so it appears in the Gallery, Music, or Files app. It is asynchronous —
the result arrives via handle_info:
handle_info({:storage, :saved_to_library, path}, socket)
handle_info({:storage, :error, :save_to_library, reason}, socket)type is :image, :video, or :audio. On API 29+ no permission is
needed for files the app created. On API 28 and below,
WRITE_EXTERNAL_STORAGE is required — add it via:
mix mob.enable media_storeSummary
Functions
Return the app's scoped external storage directory for type.
Save a file to the MediaStore so it appears in the system Gallery, Music, or Files app.
Functions
Return the app's scoped external storage directory for type.
Returns nil if external storage is not available on this device.
@spec save_to_media_store(Mob.Socket.t(), String.t(), atom()) :: Mob.Socket.t()
Save a file to the MediaStore so it appears in the system Gallery, Music, or Files app.
type is :image, :video, or :audio. Defaults to :auto, which
infers the type from the file extension.