// Import package
import 'package:flutter_headset_detector/flutter_headset_detector.dart';

// Instantiate it
final headsetDetector = HeadsetDetector();
Map<HeadsetType, HeadsetState> headsetState = {
  HeadsetType.WIRED: HeadsetState.DISCONNECTED,
  HeadsetType.WIRELESS: HeadsetState.DISCONNECTED,
};

// if headset is plugged
headsetDetector.getCurrentState.then((_val){
  headsetState = _val;
  setState(() {
  });
});

// Detect the moment headset is plugged or unplugged with a Listener
headsetDetector.setListener((_val) {
  switch (_val) {
    case HeadsetChangedEvent.WIRED_CONNECTED:
      headsetState[HeadsetType.WIRED] = HeadsetState.CONNECTED;
      break;
    case HeadsetChangedEvent.WIRED_DISCONNECTED:
      headsetState[HeadsetType.WIRED] = HeadsetState.DISCONNECTED;
      break;
    case HeadsetChangedEvent.WIRELESS_CONNECTED:
      headsetState[HeadsetType.WIRELESS] = HeadsetState.CONNECTED;
      break;
    case HeadsetChangedEvent.WIRELESS_DISCONNECTED:
      headsetState[HeadsetType.WIRELESS] = HeadsetState.DISCONNECTED;
      break;
  }
  setState(() {
  });
});

// Remove the Listener
headsetDetector.removeListener();