Reduced memory footprint of FeedUpdateInfo objects. Those objects might stay around for a while and accumulate (up to BUFFER_COUNT_BEFORE_INSERT = 20 at the moment), so in order not to fill up the memory it's better to keep as little data as possible.
Previously ChannelInfo data was stored, causing ReadyChannelTabLinkHandler objects to be also stored uselessly (and those channel tabs contain prefetched JSON data which used ~700KB of memory).
imageListToDbUrl should be used if the URL is going to be saved to the database, to avoid saving nothing in case at the moment of saving the user preference is to not show images.
The previous "main" tab is now just a normal tab returned in getTabs().
Various part of the code that used to handle channels as ListInfo now either take the first (playable, i.e. with streams) tab (e.g. the ChannelTabPlayQueue), or take all of them combined (e.g. the feed).
Removed some non-translatable strings and just hardcoded them in the code, like it's being done for other string separators. This also deduplicates some code by using Localization.
Used some Kotlin feature to reduce code.
YouTube, for example, has a dedicated feed which was built to be used
like this. It comes with some caveats though, like lacking enough
information about the items and returning a limited amount of them.
Nonetheless, a nice option for users that like speedy updates but don't
mind this issue.
- Introduce Groupie for easier lists implementations
- Use some of the new components of the Android Architecture libraries
- Add a bunch of icons for groups, using vectors, which still is
compatible with older APIs through the compatibility layer