[Redesign] Genre View loads extremely slow/long when a lot of tracks in it and displays artist text instead

[lukaslindnermusic]

using Online Mode.

I have quite some albums with the genre "Soundtrack".
When I am clicking on the genre, it says 0 Tracks 0 Albums and shows the following message (which appears to be intended for the artist view) for about 10-15s, until the view updates and the albums are shown:

Then, as soon as the albums get shown, it shows the (i guess correct) count of albums (in this case 597), but it shows 0 Tracks for quite some time until it updates (in this case to 13033).
I guess that it shows 0 until it is done counting in the background, and I understand that this might take some time in case of large amounts of albums/tracks.

Suggestion: For both the initial loading of the albums as well as the delayed calculation of the track count, indicate the loading. for the view itself, it could be a simple spinning wheel instead of the empty "artist view", and for the track count, instead of showing 0 Tracks let it say "Calculating..." or "Counting..." or something.

(I unfortunately still got no time to get familiar with Dart and the Finamp code, otherwise I would try to work on it myself.
Maybe in the next few months :P )

To improve the loading speed, couldn't it be possible to do it similar as with the albums list view, only loading the first x entries and then appending rows in the background?

[lukaslindnermusic]

@Chaphasilor I also did not see a GenreScreen in the codebase... is it possible that the ArtistScreen is used for the GenreScreen and just loaded with different data instead?

There are requests like Ability to see Artists in the Genre tab, not just albums for an aggregated genre page, which would mean that there has to be a dedicated GenreScreen and a recoding of the fetch-logic anyway, so maybe it is possible to fix this issue (possibly as well as #1027 and #1028) while working on the new Genre Screen?

Do you think it is possible to improve the loading times for this?

[Chaphasilor]

Yes, the screen is shared by artists and genres, for historic reasons.
Separate screens are definitely desired, but performance improvements would probably require using pagination instead of loading all albums at once...

[lukaslindnermusic]

Fixed in redesign beta 0.9.18 😊