[Blade player][v1.4.0.1] The app crashes when I tried to change the song after linking it with another

in utopian-io •  11 days ago

Project Information

Expected behavior

I expected that after linking a song to another, the song will stop playing. But this is not weirder than crashing the app by clicking on the next/previous button.

Actual behavior

The app crashes after I linked a song to another from the Artist folder and clicked on the previous/next track changer button of that song.

How to reproduce

1. Open the app and go to "Artists" folder.
2. Choose an artist and play a song from it.
3. Click on ⋮ (Three dots/ Vertical ellipsis) at the right side of the song.
4. Then click "Link to"
5. Select a song from your local library. (The song will be successfully added to your chosen song & The song will still be playing in your player).
6. Open the current playing song page by tapping on its name. (At the downside of your display).
7. At last Click on the next button and notice the bug.

  • App version: v1.4.0.1
  • Operating system: Android 6.0.1

Recording Of The Bug

bladebug

GitHub Account

https://github.com/sagorahmed

Logcat

04-05 00:16:02.421 26140 26140 E AndroidRuntime: FATAL EXCEPTION: main

04-05 00:16:02.421 26140 26140 E AndroidRuntime: Process: v.blade, PID: 26140

04-05 00:16:02.421 26140 26140 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'v.blade.library.sources.Source v.blade.library.SongSources$SongSource.getSource()' on a null object reference

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at v.blade.player.PlayerMediaPlayer.playSong(PlayerMediaPlayer.java:252)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at v.blade.player.PlayerService$2.onSkipToNext(PlayerService.java:157)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at android.support.v4.media.session.MediaSessionCompat$Callback$StubApi21.onSkipToNext(MediaSessionCompat.java:1284)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at android.support.v4.media.session.MediaSessionCompatApi21$CallbackProxy.onSkipToNext(MediaSessionCompatApi21.java:219)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at android.media.session.MediaSession$CallbackMessageHandler.handleMessage(MediaSession.java:1228)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at android.os.Handler.dispatchMessage(Handler.java:102)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:148)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at android.app.ActivityThread.main(ActivityThread.java:7325)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at java.lang.reflect.Method.invoke(Native Method)

04-05 00:16:02.421 26140 26140 E AndroidRuntime:    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
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Thanks for your contribution @sagorahmed

Once again, your steps were very clear and it was extremely easy to replicate, nice work. Overall I believe this issue will affect less users than the one previously mentioned, hence my view on severity, however this was great report and very easy to follow.

I didn't mention before but it's great to see that you're both reporting and including log-cats, this is great.

I can see from the comments that project owner has acknowledged and chosen a path forward surrounding this issue based on your report, good work.

Once again, thanks for your contribution and look forward to seeing more from you soon.


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[utopian-moderator]

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Thank you for your review, @tobias-g! Keep up the good work!

Hi @sagorahmed!

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