override fun onLoadChildren()

in common/src/main/java/com/example/android/uamp/media/MusicService.kt [315:349]

• 23 lines of code
• 4 McCabe index (conditional complexity)

    override fun onLoadChildren(
        parentMediaId: String,
        result: Result<List<MediaItem>>
    ) {

        /**
         * If the caller requests the recent root, return the most recently played song.
         */
        if (parentMediaId == UAMP_RECENT_ROOT) {
            result.sendResult(storage.loadRecentSong()?.let { song -> listOf(song) })
        } else {
            // If the media source is ready, the results will be set synchronously here.
            val resultsSent = mediaSource.whenReady { successfullyInitialized ->
                if (successfullyInitialized) {
                    val children = browseTree[parentMediaId]?.map { item ->
                        MediaItem(item.description, item.flag)
                    }
                    result.sendResult(children)
                } else {
                    mediaSession.sendSessionEvent(NETWORK_FAILURE, null)
                    result.sendResult(null)
                }
            }

            // If the results are not ready, the service must "detach" the results before
            // the method returns. After the source is ready, the lambda above will run,
            // and the caller will be notified that the results are ready.
            //
            // See [MediaItemFragmentViewModel.subscriptionCallback] for how this is passed to the
            // UI/displayed in the [RecyclerView].
            if (!resultsSent) {
                result.detach()
            }
        }
    }