olly 3981f9f1ae Re-download failed download in demo app
The demo app has two states for downloads, as per DownloadTracker.isDownloaded.
It's either "downloaded or downloading" (isDownloaded returns true, and the UI
shows a blue tick) or it's "not downloaded or failed (isDownloaded returns
false, and the UI does not show a blue tick).

toggleDownload is out of sync in that it treates "failed" as belonging to the
first state rather than the second. This means tapping on the grey tick in the
UI in this case appears to be a no-op (tapping it again will make something
happen).

This change aligns things by making toggleDownload re-download in the case a
previous download failed. In the future we could consider having three states,
so failed downloads could be disambiguated properly. Unclear whether it's a
good complexity/benefit trade-off for the demo app though!

#minor-release

PiperOrigin-RevId: 343464364
2020-11-20 17:09:46 +00:00
..

ExoPlayer main demo

This is the main ExoPlayer demo application. It uses ExoPlayer to play a number of test streams. It can be used as a starting point or reference project when developing other applications that make use of the ExoPlayer library.

Please see the demos README for instructions on how to build and run this demo.