vinyl

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Description:

vinyl

Batteries included audio util package
About #
I needed a quick way to scaffold applications that needed audio in flutter,
and I needed them to work on all platforms without any additional setup.
Without this library, I would have to write all player logic, controller classes and do the state management manually.
This library allows you to hit the ground running. Just do the initial device-specific setup, and you are good to go.
QuickStart #
Step 1. include the lib in pubspec.yml
vinyl:
git:
url: https://github.com/RA341/vinyl
ref: [latest commit reference]

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Step 2. Setup according to the specific platforms
Step 3. Initialize Vinyl
Future<void> main() async {
....
await vinyl.init(AudioConfig(...)) // if you need background player support
// or
await vinyl.init() // if you don't
....
runapp()
}
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Step 4. You are good to go
Just call vinyl.player to get access player methods and metadata.
Please Note #
Who this library isn't for
If you need more customization with the audio player, this may not be the library.
While I tried to have most features accessible, you do lose the granularity that comes with doing the setup code yourself.
If you feel something is lacking, feel free to open an issue
Getting started #
Setup platforms for background audio #
All instructions are taken from Audio service
Android
These instructions assume that your project follows the Flutter 1.12 project template or later. If
your project was created prior to 1.12 and uses the old project structure, you can update your
project to follow the new project template.

Make the following changes to your project's AndroidManifest.xml file:


<manifest xmlns:tools="http://schemas.android.com/tools" ...><!-- ADD THESE TWO PERMISSIONS -->
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />

<application ...>
...

<!-- EDIT THE android:name ATTRIBUTE IN YOUR EXISTING "ACTIVITY" ELEMENT -->
<activity android:name="com.ryanheise.audioservice.AudioServiceActivity" ...>...</activity>

<!-- ADD THIS "SERVICE" element -->
<service android:name="com.ryanheise.audioservice.AudioService"
android:foregroundServiceType="mediaPlayback" android:exported="true" tools:ignore="Instantiatable">
<intent-filter>
<action android:name="android.media.browse.MediaBrowserService" />
</intent-filter>
</service>

<!-- ADD THIS "RECEIVER" element -->
<receiver android:name="com.ryanheise.audioservice.MediaButtonReceiver" android:exported="true"
tools:ignore="Instantiatable">
<intent-filter>
<action android:name="android.intent.action.MEDIA_BUTTON" />
</intent-filter>
</receiver></application></manifest>
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Note: when targeting Android 12 or above, you must set android:exported on each component that has
an intent filter (the main activity, the service and the receiver). If the manifest merging process
causes "Instantiable" lint warnings, use tools:ignore="Instantiable" (as above) to suppress them.
If you use any custom icons in notification, create the file android/app/src/main/res/raw/keep.xml
to prevent them from being stripped during the build process:
<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
tools:keep="@drawable/*" />
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By default plugin's default icons are not stripped by R8. If you don't use them, you may selectively
strip them. For example, the rules below will keep all your icons and discard all the plugin's:
<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
tools:keep="@drawable/*"
tools:discard="@drawable/audio_service_*"
/>
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For more information about shrinking see Android documentation.
Custom Android activity
If your app needs to use its own custom activity, make sure you update your AndroidManifest.xml file
to reference your activity's class name instead of AudioServiceActivity. For example, if your
activity class is named MainActivity, then use:
<activity android:name=".MainActivity" ...>
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Depending on whether you activity is a regular Activity or a FragmentActivity, you must also include
some code to link to audio_service's shared FlutterEngine. The easiest way to accomplish this is to
inherit that code from one of audio_service's provided base classes.
Integration as an Activity:
import com.ryanheise.audioservice.AudioServiceActivity;

class MainActivity extends AudioServiceActivity {
// ...
}
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Integration as a FragmentActivity:
import com.ryanheise.audioservice.AudioServiceFragmentActivity;

class MainActivity extends AudioServiceFragmentActivity {
// ...
}
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You can also write your own activity class from scratch, and override the provideFlutterEngine,
getCachedEngineId and shouldDestroyEngineWithHost methods yourself. For inspiration, see the source
code of the provided AudioServiceActivity and AudioServiceFragmentActivity classes.
IOS
Insert this in your Info.plist file:
<key>UIBackgroundModes</key>
<array>
<string>audio</string>
</array>
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The example project may be consulted for context.
Note that the audio background mode permits an app to run in the background only for the purpose of playing audio. The OS may kill your process if it sits idly without playing audio, for example, by using a timer to sleep for a few seconds. If your app needs to pause for a few seconds between audio tracks, consider playing a silent audio track to create that effect rather than using an idle timer.
MacOS
Insert this in your Info.plist file:


The example project may be consulted for context.
Note that the audio background mode permits an app to run in the background only for the purpose of playing audio. The OS may kill your process if it sits idly without playing audio, for example, by using a timer to sleep for a few seconds. If your app needs to pause for a few seconds between audio tracks, consider playing a silent audio track to create that effect rather than using an idle timer.
Web
No Additional setup required
Windows
Not supported
Linux
Initialize Vinyl #
AudioServiceConfig is required for background audio read more about here
Note
'vinyl' is a helper variable for your convenience.
Callable from anywhere, will always return the initialized instance of Vinyl
Vinyl itself is a singleton and will always have only single instance
Internally it is initialized like so
vinyl = Vinyl.i;
if you need to use background player
final config = AudioServiceConfig(....);
vinyl.init(audioConfig:config);
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Without background
vinyl.init();
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Usage #
All media methods are accessed using the player controller
vinyl.player
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vinyl.player.play()
vinyl.player.pause()
vinyl.player.loadMedia()
.....
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More Information can be found in example
Credits #
This library is a helpful wrapper around the excellent work done by authors of mediakit and audioservice.
Please consider supporting them if you can
Mediakit
audio_service
Inspired by the blog written by sugrach
https://suragch.medium.com/background-audio-in-flutter-with-audio-service-and-just-audio-3cce17b4a7d
Contributing #
Anyone is welcome is contribute, as usual fork the repo make your changes and open a pull request.

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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