audio_output_device_check

Flutter plugin to detect current audio output device and listen for output changes.

Supported Platforms

• Android: supported
• iOS: supported
• macOS: supported
• Windows: supported (snapshot + name detection)
• Linux: supported (snapshot + name detection via pactl when available)

Installation

Add dependency in your app pubspec.yaml:

dependencies:
  audio_output_device_check: ^0.2.0

Usage

import 'package:audio_output_device_check/audio_output_device_check.dart';

final plugin = AudioOutputDeviceCheck(
  autoRequestBluetoothPermission: true,
);

final current = await plugin.currentDevice();
print('Current output: ${current.type.name} - ${current.name}');

plugin.deviceStream.listen((device) {
  print('Audio output changed: ${device.type.name} - ${device.name}');
});

Android Bluetooth Permission API

Plugin provides optional Android BLUETOOTH_CONNECT permission helpers:

final status = await plugin.getBluetoothConnectPermissionStatus();
final requested = await plugin.requestBluetoothConnectPermission();

Behavior:

• On Android: permission is requested automatically at most once per plugin instance when deviceStream or currentDevice() is used.
• Set autoRequestBluetoothPermission: false to disable automatic requests.
• On non-Android platforms: permission APIs return BluetoothPermissionStatus.notApplicable.
• On permission/API failures: plugin returns safe fallback device info instead of throwing.

Device Type Values

AudioDeviceInfo.type uses the AudioDeviceType enum:

• AudioDeviceType.bluetooth
• AudioDeviceType.wired
• AudioDeviceType.speaker
• AudioDeviceType.unknown

Migrating from 0.1.x

// Before
plugin.audioDeviceStreamWithPermission().listen(...);
if (device.type == 'bluetooth') {}

// 0.2.0
plugin.deviceStream.listen(...);
if (device.type == AudioDeviceType.bluetooth) {}

BluetoothPermissionStatus.permanentlyDenied and BluetoothPermissionStatus.restricted were removed because they could not be reported consistently across supported platforms.

Notes

• Linux device name detection uses pactl command output. If unavailable, fallback value is returned.
• Stream emits current snapshot on listen; additional real-time update behavior depends on platform capabilities.