【发布时间】：2021-06-07 06:26:22
【问题描述】：
我已经在 Flutter 中构建了我的应用，并且我已经实现了 LocalNotifications 和 FCM 消息传递。
这是我的代码：
final FirebaseMessaging firebaseMessaging = FirebaseMessaging();
final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
FlutterLocalNotificationsPlugin();
@override
void initState() {
super.initState();
registerNotification();
configLocalNotification();
}
void registerNotification() {
firebaseMessaging.requestNotificationPermissions();
firebaseMessaging.configure(onMessage: (Map<String, dynamic> message) {
print('onMessage: $message');
return ;
}, onResume: (Map<String, dynamic> message) {
print('onResume: $message');
return Navigator.push(
context,
MaterialPageRoute(
builder: (context) => NotificationsScreen()));
},
onLaunch: (Map<String, dynamic> message) {
print('onLaunch: $message');
return;
});
firebaseMessaging.getToken().then((token) {
print('token: $token');
FirebaseFirestore.instance
.collection('Consultant')
.doc(firebaseUser.uid)
.update({'deviceToken': token});
}).catchError((err) {
//Fluttertoast.showToast(msg: err.message.toString());
});
}
Future selectNotification(String payload) async {
if (payload != null) {
debugPrint('notification payload: $payload');
}
await Navigator.push(
context,
MaterialPageRoute<void>(builder: (context) => NotificationsScreen(payload: payload,)),
);
}
void showNotification(message) async {
var androidPlatformChannelSpecifics = new AndroidNotificationDetails(
Platform.isAndroid
? 'it.wytex.vibeland_pro_app'
: 'it.wytex.vibeland_pro_app',
'Vibeland Pro',
'Vibeland Pro',
playSound: true,
enableVibration: true,
importance: Importance.max,
priority: Priority.high,
);
var iOSPlatformChannelSpecifics = new IOSNotificationDetails();
var platformChannelSpecifics = new NotificationDetails(
android: androidPlatformChannelSpecifics, iOS: iOSPlatformChannelSpecifics);
print(message);
print(message['body'].toString());
print(json.encode(message));
await flutterLocalNotificationsPlugin.show(0, message['title'].toString(),
message['body'].toString(), platformChannelSpecifics,
payload: json.encode(message));
await flutterLocalNotificationsPlugin.show(
1, '???? Hai ricevuto un messaggio ???? ', 'Controlla subito le Tue notifiche ????????', platformChannelSpecifics,
payload: 'item x',
);
}
void configLocalNotification() {
var initializationSettingsAndroid =
new AndroidInitializationSettings('@mipmap/ic_launcher');
var initializationSettingsIOS = new IOSInitializationSettings(
requestAlertPermission: true,
requestBadgePermission: true,
requestSoundPermission: true,
);
var initializationSettings = new InitializationSettings(
android: initializationSettingsAndroid, iOS: initializationSettingsIOS);
flutterLocalNotificationsPlugin.initialize(initializationSettings);
}
我在 firebase 中构建了一个函数来推送一些新集合作为通知。
const functions = require("firebase-functions");
const admin = require("firebase-admin");
admin.initializeApp(functions.config().firebase);
const fcm = admin.messaging();
exports.sendNotification = functions.firestore
.document("Notifications/{id}")
.onCreate((snapshot) => {
const name = snapshot.get("name");
const subject = snapshot.get("subject");
const token = snapshot.get("token");
const payload = {
notification: {
title: "" + name,
body: "" + subject,
sound: "default",
click_action: "FLUTTER_NOTIFICATION_CLICK",
},
};
return fcm.sendToDevice(token, payload);
});
firebase_messaging: ^7.0.3 和 flutter_local_notifications: ^4.0.1 的版本
目前由于与依赖项发生冲突，我没有升级。
通过这种方式，当应用程序打开时我会收到两个通知，我会正确收到本地通知，当应用程序处于前台和后台时，我会根据添加到我的 firestore 中的新集合获得 Firebasemessaging。
现在问题来了，当我关闭应用程序或几分钟后开始睡眠时应用程序......
我收不到任何通知
要重新开始接收通知，我需要再次运行该应用并唤醒该应用。 这是我的应用程序的问题，因为我的应用程序通知非常重要，用户需要随时获取它们。
【问题讨论】：
标签： firebase flutter google-cloud-firestore firebase-cloud-messaging