Assuming you have the media/file uri based on MediaStore.MediaColumns._ID.
On KITKAT / API 19 and above.
val file = DocumentFile.fromSingleUri(context, uri)if (file != null) { Timber.d("uri=$uri, filename=${file.name}, mimeType=${file.type}")}No KitKat Restrictions
class MediaFile private constructor(context: Context, uri: Uri) { lateinit var displayName: String lateinit var mimeType: String companion object { fun fromUri(context: Context, uri: Uri): MediaFile? { return try { MediaFile(context, uri) } catch (e: FileNotFoundException) { null } } } init { val contentResolver = context.contentResolver val projection = arrayOf( MediaStore.MediaColumns.DISPLAY_NAME, MediaStore.MediaColumns.MIME_TYPE ) contentResolver.query(uri, projection, null, null, null).use { cursor -> if (cursor == null) throw FileNotFoundException(uri.toString()) if (cursor.moveToFirst()) { val displayNameIndex = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DISPLAY_NAME) val mimeTypeIndex = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.MIME_TYPE) displayName = cursor.getString(displayNameIndex) mimeType = cursor.getString(mimeTypeIndex) } } }}val file = DocumentFile.fromSingleUri(context, uri)if (file != null) { Timber.d("uri=$uri, filename=${file.displayName}, mimeType=${file.mimeType}")}else { Timber.d("File not found: $uri")}