Callbacks are called on the thread that created the MediaPlayer.
For Sonic, this is the executor. For ExoPlayer, this is the main thread.
When calling executor.submit, every thread waiting for the runnable to
complete gets blocked.
Because the callback is called in the thread that created the player,
we can simply remove the call to executor.submit and still be sure
that a background thread is used.
Apple says this [1] about the `<itunes:duration>` tag:
If you specify a single number as a value (without colons), Apple
Podcasts displays the value as seconds.
This commit makes it also handle this single-number format.
Closes: #3024
[1]: https://help.apple.com/itc/podcasts_connect/#/itcb54353390
Also made sure that register/unregister are called in onStart/onStop
instead of onResume/onPause (prevents possible MultiWindow problems
where updates are not received because activity is not fucused).
should never happen in the code path, e.g.,
return the current FeedItem in ItemFragment UI.
Mark underlying method as @Nullable, and let observer's existing
onError() to handle null case
Rx observer : underlying sources marked as @Nullable
ItemFragment.load : .loadInBackground
MediaplayerActivity.checkFavorite : DBReader.getFeedItem
ItemDescriptionFragment.onViewCreated : DBReader.getFeedItem
ItemlistFragment.loadItems : .loadData
to be on the safe side, for cases that the consuming observers checks null
unnecessarily.
Rx observer : underlying sources marked as NonNull
OnlineFeedViewActivity.startFeedDownload : Downloader.getResult
AllEpisodesFragment.loadItems : AllEpisodesFragment.loadData
PlaybackHistoryFragment.loadItems : DBReader.getPlaybackHistory
QueueFragment.loadItems : DBReader.getQueue
SearchFragment.search : .performSearch
to be on the safe side, for cases that the consuming observers
already assumes the result is not null.
Rx observer : underlying sources marked as NonNull
OnlineFeedViewActivity.listener member : DBReader.getFeedList
StatisticsActivity.loadStatistics : DBReader.getStatistics
CustomMRControllerDialog.updateViews : CustomMRControllerDialog.fetchArt
CompletedDownloadsFragment.loadItems : DBReader.getDownloadedItems
DownloadLogFragment.loadItems : DBReader.getDownloadedItems
ItemDescriptionFragment.onViewCreated : .loadData, Timeline.processShownotes
SubscriptionFragment.loadSubscriptions : DBReader.getNavDrawerData
SubscriptionFragment.onContextItemSelected (x2) : DBWriter.markFeedSeen, DBWriter.markFeedRead
PreferenceController.export : ExportWorker.output member
