Creating an Audio Player in Flutter

In this tutorial, we’ll be creating an audio player in Flutter using the audioplayers plugin. We’ll be covering the following topics:

Setting up the Flutter project
Installing audioplayers & dependencies
Building the audio player UI
Adding audio files to the Flutter project
Playing audio files in Flutter
Pausing audio files in Flutter
Accessing the device's microphone in Flutter
Recording audio files in Flutter
Running the Flutter audio player

flutter audio player

Setting up the Flutter Project

Before we get started, let’s first create a new Flutter project in Android Studio. We’ll be using the default project settings and the Flutter SDK.

Installing audioplayers & Dependencies

Once the Flutter project is created, we can now install the audioplayers plugin. This plugin allows us to play, pause, and record audio files in our Flutter app.

To install the audioplayers plugin, we’ll need to add the following line to our pubspec.yaml file:

dependencies:
  audioplayers: ^0.15.1

We’ll also need to add the following dependencies to our pubspec.yaml file:

dependencies:
  audioplayers: ^0.15.1
  path_provider: ^1.6.11
  permission_handler: ^5.0.2+1

Building the Audio Player UI

Now that we have the audioplayers plugin installed, let’s start building the audio player UI. We’ll be using a Scaffold widget to create the basic UI structure.

Scaffold(
  appBar: AppBar(
    title: Text('Audio Player'),
  ),
  body: Container(),
);

Adding Audio Files to the Flutter Project

Next, we need to add audio files to our Flutter project. We can do this by creating a new folder in the project root directory and adding audio files to it.

Playing Audio Files in Flutter

Now that we have our audio files in the Flutter project, we can start playing them. To do this, we’ll need to use the audioplayers plugin.

First, we need to create an AudioPlayer object:

AudioPlayer audioPlayer = AudioPlayer();

Now, we can use the play() method to play an audio file:

audioPlayer.play('audio_file.mp3');

Pausing Audio Files in Flutter

We can also pause an audio file by using the pause() method:

audioPlayer.pause();

Accessing Device's Microphone in Flutter

In addition to playing and pausing audio files, we can also access the device’s microphone. To do this, we’ll need to use the permission_handler plugin.

First, we need to add the following line to our pubspec.yaml file:

dependencies:
  permission_handler: ^5.0.2+1

Then, we can use the requestPermissions() method to request access to the device’s microphone:

PermissionHandler().requestPermissions([PermissionGroup.microphone]);

Recording Audio Files in Flutter

Once we have access to the device’s microphone, we can start recording audio files. To do this, we’ll need to use the audioplayers plugin.

First, we need to create an AudioRecorder object:

AudioRecorder audioRecorder = AudioRecorder();

Now, we can use the start() method to start recording an audio file:

audioRecorder.start();

Running the Flutter Audio Player

Finally, we can run our Flutter audio player. To do this, we’ll need to press the “Run” button in Android Studio.

Once the app is running, we should be able to play, pause, and record audio files.

Conclusion

In this tutorial, we’ve learned how to create an audio player in Flutter using the audioplayers plugin. We’ve covered the following topics:

Setting up the Flutter project
Installing audioplayers & dependencies
Building the audio player UI
Adding audio files to the Flutter project
Playing audio files in Flutter
Pausing audio files in Flutter
Accessing the device's microphone in Flutter
Recording audio files in Flutter
Running the Flutter audio player

We hope this tutorial has been helpful and that you’ve learned something new. Thanks for reading!