Xamarin推送通知

Question

在后台接收和打开该应用程序的通知会增加发送的数据数。

此外，该通知未显示何时杀死该应用程序或何时在前景中。

以下是我的代码，源代码来自Gerald versluis https：> https://github.com/github.com/jfversluis/jfversluis/xffcmpushnotipationsmplempamp

using System;
using Xamarin.Forms;
using Plugin.FirebasePushNotification;
using Xamarin.Forms.Xaml;

namespace FCMTest
{
    public partial class App : Application
    {
        public App()
        {
            InitializeComponent();

            MainPage = new MainPage();

            CrossFirebasePushNotification.Current.Subscribe("all");
            CrossFirebasePushNotification.Current.OnTokenRefresh += Current_OnTokenRefresh;
            CrossFirebasePushNotification.Current.OnNotificationReceived += Current_OnNotificationReceived;
            CrossFirebasePushNotification.Current.OnNotificationOpened += Current_OnNotificationOpened;
           //CrossFirebasePushNotification.Current.OnNotificationAction += Current_OnNotificationAction;
        }

        private void Current_OnTokenRefresh(object source, FirebasePushNotificationTokenEventArgs e)
        {
            System.Diagnostics.Debug.WriteLine($"Token from function OnTokenRefresh: {e.Token}");
        }

        private void Current_OnNotificationReceived(object source, FirebasePushNotificationDataEventArgs d)
        {
            System.Diagnostics.Debug.WriteLine("Received");
            foreach (var data in d.Data)
            {
                System.Diagnostics.Debug.WriteLine($"{data.Key} : {data.Value}");
            }
        }

        /*private void Current_OnNotificationAction(object source, FirebasePushNotificationResponseEventArgs d)
        {
            System.Diagnostics.Debug.WriteLine("Opened");
            foreach (var data in d.Data)
            {
                System.Diagnostics.Debug.WriteLine($"{data.Key} : {data.Value}");
            }
        }*/

        private void Current_OnNotificationOpened(object source, FirebasePushNotificationResponseEventArgs d)
        {
            System.Diagnostics.Debug.WriteLine("Opened");
            foreach (var data in d.Data)
            {
                System.Diagnostics.Debug.WriteLine($"{data.Key} : {data.Value}");
            }
        }
        
        protected override void OnStart()
        {
        }

        protected override void OnSleep()
        {
        }

        protected override void OnResume()
        {
        }
    }
}

using FirebaseAdmin;
using FirebaseAdmin.Messaging;
using Google.Apis.Auth.OAuth2;
using System;
using System.Collections.Generic;


namespace FCMDispatcher
{
    class Program
    {
        static void Main(string[] args)
        {
            FirebaseApp.Create(new AppOptions()
            {
                Credential = GoogleCredential.FromFile("fcm-test-98fe5-firebase-adminsdk-oknwc-c290af4ff0.json")
            });

            // This registration token comes from the client FCM SDKs.
            var registrationToken = "d8yECxIhJXQ:APA91bFGXSrnUVcP07TlN4HpvfstWwEdPQaj4wr6Z3Q-7JqcJJjrFy9LkWdlfzcCNDrZeVy55IDTWxvp5Gfyv8318uRRmIPo6Gp2IQnyUDSHqGLdTF8RMmlwyaECTKWDnmhClMLV8In9";

            // See documentation on defining a message payload.
            var message = new Message()
            {
                Data = new Dictionary<string, string>()
                {
                    {"myData", "One more try to say Succeded!"},
                    
                },
                Token = registrationToken,
                //Topic = "all",   
                Notification = new Notification()
                {
                    Title = "Test from code",
                    Body = "Here is your test!"
                }
            };

            // Send a message to the device corresponding to the provided
            // registration token.
            string response = FirebaseMessaging.DefaultInstance.SendAsync(message).Result;
            // Response is a message ID string.
            Console.WriteLine("Successfully sent message: " + response);
        }
    }
}

Answer 1

尝试在数据有效载荷中添加高或最大的优先级。

Data = new Dictionary<string, string>()
{
    {"myData", "One more try to say Succeded!"},
    {"priority", "high"},                   
},

这种复杂条件必须匹配以显示您的通知：
https://github.com/crossgeeks/ FireBasePushNotificationPlugin/blob/d86266a9f45687b418f5f1e69c34868681d1ff6e27/plugin.firebasepushnotification/defaultpushnotificationhandificationhandler.android.android.android.cs＃l151＃l151