Using temporary files.

Managing temporary records

Using path_provider

The App can get the temporary directory with the plugin path_provider and use it for startRecorder() parameter :

        var tempDir = await getTemporaryDirectory();
        String path = '${tempDir.path}/flutter_sound.aac';
        await myRecorder.startRecorder( toFile: path, codec: Codec.aacADTS );
        ...
        await myRecorder.stopRecorder();
        await myPlayer.startPlayer( fromURI: path, codec: Codec.aacADTS );

This does not work well on Flutter Web.

Using a temporary file name

If the App does not specify a full path to the startRecorder parameter, the startRecorder() argument is considered as a temporary file name.

        await myRecorder.startRecorder( toFile: 'foo.aac', codec: Codec.aacADTS ); // Without any slash '/'.
        ...
        await myRecorder.stopRecorder();
        await myPlayer.startPlayer( fromURI: 'foo.aac', codec: Codec.aacADTS );

stopRecorder() returns a Future to the URL of the temporary file created if the App needs it.

        await myRecorder.startRecorder( toFile: 'foo.aac', codec: Codec.aacADTS ); // Without any slash '/'.
        ...
        String url = await myRecorder.stopRecorder();
        await myPlayer.startPlayer( fromURI: url, codec: Codec.aacADTS );

All the temporary files created are automaticaly deleted when the App does a closeAudioSession().

This works on :

  • Android
  • iOS
  • Flutter Web
Tags: flutter_sound