[Flutter] local notification plugin FCM 알림 에러

 

에러코드:

E/MethodChannel#.com/flutter/local_notifications( 7674): Failed to handle method call
E/MethodChannel#.com/flutter/local_notifications( 7674): java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
E/MethodChannel#.com/flutter/local_notifications( 7674):  at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.setSmallIcon(FlutterLocalNotificationsPlugin.java:76)
E/MethodChannel#.com/flutter/local_notifications( 7674):  at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.createNotification(FlutterLocalNotificationsPlugin.java:88)

 

flutter app android error 

FlutterLocalNotificationsPlugin.setSmallIcon

 

안드로이드에서 FlutterLocalNotificationsPlugin을 통해 내부 알림을 보낼 때 나타나는 icon 설정이 잘못되어있기 때문에 이미지를 찾을 수 없어 알림이 안 나오는 에러!

 

따라서 icon 이미지만 지정해주면 해결된다:

 

FlutterLocalNotificationsPlugin().show(
  notification.hashCode,
  notification.title,
  notification.body,
  const NotificationDetails(
    android: AndroidNotificationDetails(
      'high_importance_channel',
      'High Importance Notifications',
      importance: Importance.max,
      playSound: true,
      enableVibration: true,
      icon: "mipmap/app_icon", //당신의 mipmap 폴더에 있는 보여주려는 아이콘 파일명 입력. 확장자 필요없음
    ),
    iOS: DarwinNotificationDetails(
      presentAlert: true,
      presentBadge: true,
      presentSound: true,
      presentBanner: true,
    ),
  ),
);