Write data to a file on Android via MediaStore API

gistfile1.kt

private fun saveFileToMediaStorage(bmp: Bitmap) {
    val resolver = applicationContext.contentResolver
    val contentValues = ContentValues().apply {
        put(MediaStore.MediaColumns.DISPLAY_NAME, "photo.bmp")
        put(MediaStore.MediaColumns.MIME_TYPE, "image/bmp")
        put(MediaStore.MediaColumns.RELATIVE_PATH, "Pictures/")
    }

    val uri = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)

    uri?.let {
        resolver.openOutputStream(uri).use {
            bmp.compress(Bitmap.CompressFormat.JPEG, quality, it)
        }
    }
}