Music Player: create a simple Flutter music player app

This is a Flutter project used during a series of articles on I should go to sleep.

License

You can read the code, download it, learn from it and run it on you machine with the purpose of learning. But you are not allowed to modify and/or use it in any project, commercial or non-commercial.

If you would like to re-use the code for one of your projects, any kind of projects, you can contact me, and we can discuss the specific use.

Articles

Part 1: create the project and add basic buttons

In the first part we create the Flutter project and play some music from the Internet by using the package just_audio.

Part 2: Improve repository and add a playlist

In the second part we improve the repository and we add a playlist to the app.

Part 3: Migrate to Flutter 2, sound null safety, and select a license

The third part is all about upgrading Flutter and migrate to sound null safety. We also select a license for the project.

Part 4: Add Provider and move hardcoded data

The fourth part adds providers and refactors some of the code.

Part 5: Add a local playlist

The fifth part adds another playlist and fixes a big usability problem.

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Comments

The following code in Player_buttons is not working `return _playPauseButton(playerState);` and this is the error that I'm currently getting with the code:`The argument type 'PlayerState?' can't be assigned to the parameter type 'PlayerState'.`
The following code in Player_buttons is not working return _playPauseButton(playerState); and this is the error that I'm currently getting with the code:The argument type 'PlayerState?' can't be assigned to the parameter type 'PlayerState'.

Code segment:

StreamBuilder<PlayerState>( stream: _audioPlayer.playerStateStream, builder: (_, snapshot) { final playerState = snapshot.data; return _playPauseButton(playerState); //null operator checker }, ),

Originally posted by @travisdang36 in https://github.com/mvolpato/the-player/issues/4#issuecomment-1181288019
opened by travisdang36 0
The argument type 'Stream' can't be assigned to the parameter type 'Stream?

The following code stream: audioPlayer.sequenceStateStream, in PlayerButtons doesn't work. I am getting this error: The argument type 'Stream<SequenceState?>' can't be assigned to the parameter type 'Stream<SequenceState>?'

StreamBuilder<SequenceState>( stream: audioPlayer.sequenceStateStream, builder: (_, __) { return _previousButton(); }, ), StreamBuilder<SequenceState>( stream: audioPlayer.sequenceStateStream, builder: (_, __) { return _nextButton(); }, ),

opened by Helyanti 1