+버튼 눌러도 알림이 뜨지 않습니다

[김다연]

D/EGL_emulation( 7828): app_time_stats: avg=737.61ms min=8.55ms max=15888.29ms count=22
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): Failed to handle method call
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.setSmallIcon(FlutterLocalNotificationsPlugin.java:326)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.createNotification(FlutterLocalNotificationsPlugin.java:233)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.showNotification(FlutterLocalNotificationsPlugin.java:1031)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.show(FlutterLocalNotificationsPlugin.java:1372)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.onMethodCall(FlutterLocalNotificationsPlugin.java:1241)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:262)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0$io-flutter-embedding-engine-dart-DartMessenger(DartMessenger.java:319)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at android.os.Handler.handleCallback(Handler.java:938)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at android.os.Handler.dispatchMessage(Handler.java:99)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at android.os.Looper.loopOnce(Looper.java:201)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at android.os.Looper.loop(Looper.java:288)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at android.app.ActivityThread.main(ActivityThread.java:7839)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at java.lang.reflect.Method.invoke(Native Method)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
E/MethodChannel#dexterous.com/flutter/local_notifications( 7828): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
E/flutter ( 7828): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: PlatformException(error, Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference, null, java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
E/flutter ( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.setSmallIcon(FlutterLocalNotificationsPlugin.java:326)
E/flutter ( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.createNotification(FlutterLocalNotificationsPlugin.java:233)
E/flutter ( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.showNotification(FlutterLocalNotificationsPlugin.java:1031)
E/flutter ( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.show(FlutterLocalNotificationsPlugin.java:1372)
E/flutter ( 7828): 	at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.onMethodCall(FlutterLocalNotificationsPlugin.java:1241)
E/flutter ( 7828): 	at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:262)
E/flutter ( 7828): 	at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295)
E/flutter ( 7828): 	at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0$io-flutter-embedding-engine-dart-DartMessenger(DartMessenger.java:319)
E/flutter ( 7828): 	at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12)
E/flutter ( 7828): 	at android.os.Handler.handleCallback(Handler.java:938)
E/flutter ( 7828): 	at android.os.Handler.dispatchMessage(Handler.java:99)
E/flutter ( 7828): 	at android.os.Looper.loopOnce(Looper.java:201)
E/flutter ( 7828): 	at android.os.Looper.loop(Looper.java:288)
E/flutter ( 7828): 	at android.app.ActivityThread.main(ActivityThread.java:7839)
E/flutter ( 7828): 	at java.lang.reflect.Method.invoke(Native Method)
E/flutter ( 7828): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
E/flutter ( 7828): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
E/flutter ( 7828): )
E/flutter ( 7828): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7)
E/flutter ( 7828): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:167:18)
E/flutter ( 7828): <asynchronous suspension>
E/flutter ( 7828): #2      FlutterLocalNotificationsPlugin.show (package:flutter_local_notifications/src/flutter_local_notifications_plugin.dart:215:7)
E/flutter ( 7828): <asynchronous suspension>
E/flutter ( 7828): 

현재 인스타강의를 듣고있는데요 floatingButton을 눌러도 notification이 위에 안뜨고 저런 오류문장이 뜹니다ㅜ
에뮬레이터 저장공간이 부족한가 싶어서 용량을 4096으로 늘려줘도 안되네요

코딩애플님이 쓰신 코드를 사용했습니다 참고로 덧붙입니다..!ㅠ

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  var tab = 0; //state에 tab의 현재상태 저장 '홈' 이렇게 한글로 저장해도 상관x
  var data = [];

  //선택한 이미지를 위젯에 보여주기
  var userImage;
  var userContent;

  saveData() async {
    var storage = await SharedPreferences.getInstance(); //저장공간 오픈

    var map = {'age': 20};
    storage.setString('map', jsonEncode(map));
    var result = storage.getString('map') ?? '없는데요';
    print(jsonDecode(result)['age']);
  }

  addMyData() {
    var myData = {
      'id': data.length, //유니크한 번호 부여가능
      'image': userImage,
      'likes': 5,
      'date': 'July 25',
      'content': userContent,
      'liked': false,
      'user': 'Dayeon',
    };
    setState(() {
      data.insert(0, myData);
    });
  }

  setUserContent(a) {
    setState(() {
      userContent = a;
    });
  }

  addData(a) {
    setState(() {
      data.add(a);
    });
  }

  getData() async {
    var result = await http
        .get(Uri.parse('https://codingapple1.github.io/app/data.json'));

    var result2 = jsonDecode(result.body);
    setState(() {
      data = result2;
    });
  }

  @override
  void initState() {
    super.initState();
    initNotification();
    saveData();
    getData();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      floatingActionButton: FloatingActionButton(
        child: Text('+'),
        onPressed: () {
          showNotification();
        },
      ),

[codingapple]

notification 파일에 오타가 있거나 그럴 수 있습니다

[김다연]

복사붙여넣기 해서 오류는 없을 것 같습니다

import 'package:flutter/material.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:timezone/data/latest_all.dart' as tz;
import 'package:timezone/timezone.dart' as tz;

final notifications = FlutterLocalNotificationsPlugin();

//1. 앱로드시 실행할 기본설정
initNotification(context) async {
//안드로이드용 아이콘파일 이름
  var androidSetting = AndroidInitializationSettings('app_icon');

//ios에서 앱 로드시 유저에게 권한요청하려면
  var iosSetting = IOSInitializationSettings(
    requestAlertPermission: true,
    requestBadgePermission: true,
    requestSoundPermission: true,
  );

  var initializationSettings =
      InitializationSettings(android: androidSetting, iOS: iosSetting);
  await notifications.initialize(initializationSettings,

//알림 누를때 함수실행하고 싶으면//onSelectNotification: 함수명추가
      onSelectNotification: (payload) {
    Navigator.push(
      context,
      MaterialPageRoute(
        builder: (context) => Text('새로운페이지'),
      ),
    );
  });
}

showNotification() async {
  var androidDetails = AndroidNotificationDetails(
    '유니크한 알림 채널 ID',
    '알림종류 설명',
    priority: Priority.high,
    importance: Importance.max,
    color: Color.fromARGB(255, 255, 0, 0),
  );

  var iosDetails = IOSNotificationDetails(
    presentAlert: true,
    presentBadge: true,
    presentSound: true,
  );

  // 알림 id, 제목, 내용 맘대로 채우기
  notifications.show(1, '제목1', '내용1',
      NotificationDetails(android: androidDetails, iOS: iosDetails));
}

showNotification2() async {
  tz.initializeTimeZones(); //얘 써야 시간관련 함수 끌수있음

  var androidDetails = const AndroidNotificationDetails(
    '유니크한 알림 ID',
    '알림종류 설명',
    priority: Priority.high,
    importance: Importance.max,
    color: Color.fromARGB(255, 255, 0, 0),
  );
  var iosDetails = const IOSNotificationDetails(
    presentAlert: true,
    presentBadge: true,
    presentSound: true,
  );
  notifications.zonedSchedule(2, '제목2', '내용2', makeDate(8, 30, 0),
      NotificationDetails(android: androidDetails, iOS: iosDetails),
      androidAllowWhileIdle: true,
      uiLocalNotificationDateInterpretation:
          UILocalNotificationDateInterpretation.absoluteTime,
      matchDateTimeComponents: DateTimeComponents.time);
}

makeDate(hour, min, sec) {
  var now = tz.TZDateTime.now(tz.local);
  var when =
      tz.TZDateTime(tz.local, now.year, now.month, now.day, hour, min, sec);
  if (when.isBefore(now)) {
    return when.add(Duration(days: 1));
  } else {
    return when;
  }
}

[codingapple]

app_icon 파일도 이름맞게 잘넣어뒀나요

[글쓴이]

글