Android how to check earphone plugged in or not

Pls check following code to check earphone status

need to register broadcast receiver in activity

private BroadcastReceiver earPhoneStateReceiver = new BroadcastReceiver() {

  @Override
  public void onReceive(Context context, Intent intent) {
   if (intent.getAction().equals(Intent.ACTION_HEADSET_PLUG)) {

    int state = intent.getIntExtra("state", -1);
    switch (state) {
    case 0:
     
     Log.d(TAG, "Headset is unplugged");
     break;
    case 1:
     
     Log.d(TAG, "Headset is plugged");
     break;
    default:
     
     Log.d(TAG, "I have no idea what the headset state is");
    }
   }
  }
 };

in On create of activity need to register above receiver

 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.detail);


  // register receiver for ear phone
  IntentFilter receiverFilter = new IntentFilter(
    Intent.ACTION_HEADSET_PLUG);

  registerReceiver(earPhoneStateReceiver, receiverFilter);
  // end register receiver for ear phone

}