如何阻止FCM通知不断显示和发出声音

Question

我正试图使用ESP-8266和Mobiz的"；Firebase-ESP8266"；图书馆当应用程序处于后台或被终止时，我会定期收到包含指定消息的FCM通知。但问题是，每当有新的通知出现时，它就会弹出/显示在屏幕上，每次都会发出声音，这很烦人。

我希望一旦收到第一个通知，那么在用户取消之前，即将到来的通知不应该显示在屏幕上或发出任何声音。我只希望它们替换通知托盘中的现有通知。

我已经可以替换通知托盘中的现有通知，但通知仍然会弹出屏幕并发出声音。有什么解决办法吗？

这是我的manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.tokenapp">
<uses-permission android:name="android.permission.INTERNET"
/>
<application
android:name=".App"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.TokenApp">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".MyFirebaseMessagingService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
<meta-data
android:name="firebase_messaging_auto_init_enabled"
android:value="false"/>
<meta-data
android:name="firebase_analytics_collection_enabled"
android:value="false"/>
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="@drawable/ic_baseline_api_24"/>
<meta-data
android:name="com.google.firebase.messaging.default_notification_color"
android:resource="@color/green"/>
<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="@string/channelid"/>
<meta-data
android:name="com.google.firebase.messaging.default_notification_tag"
android:value="MyTAG"/>

</application>
</manifest>

MyFirebaseMessagingService.java类

package com.example.tokenapp;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.Service;
import android.graphics.Color;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.core.app.NotificationCompat;
import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;
import static com.example.tokenapp.App.CHANNEL_ID;
public class MyFirebaseMessagingService extends FirebaseMessagingService {

public static final String TAG = "MyTAG";
@Override
public void onMessageReceived(@NonNull  RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
Log.d(TAG,"onMessageReceiveCalled");
Log.d(TAG,"onMessageReceived:MessageReceived From: "+remoteMessage.getFrom());
if(remoteMessage.getNotification()!=null){
String title = remoteMessage.getNotification().getTitle();
String body = remoteMessage.getNotification().getBody();
long[] v={500,1000};
Notification notification = new NotificationCompat.Builder(this,CHANNEL_ID)
.setSmallIcon(R.drawable.ic_baseline_api_24)
.setContentTitle(title)
.setContentText(body)
.setColor(Color.GREEN).setOnlyAlertOnce(true).setStyle(new NotificationCompat.BigTextStyle().bigText("")).setVibrate(v).setAutoCancel(true)
.build();
NotificationManager manager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
manager.notify(1002,notification);
}
if(remoteMessage.getData().size()>0){
Log.d(TAG,"onMessageReceived :Data:"+remoteMessage.getData().toString());
}
}
@Override
public void onDeletedMessages() {
super.onDeletedMessages();
Log.d(TAG,"onMessageReceiveCalled");
}
@Override
public void onNewToken(@NonNull  String s) {
super.onNewToken(s);
Log.d(TAG,"onMessageReceiveCalled");
}
}

App.java类

package com.example.tokenapp;

import android.app.Application;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.os.Build;
public class App extends Application {
public static final String CHANNEL_ID = "channel_id";
@Override
public void onCreate() {
super.onCreate();
if(Build.VERSION.SDK_INT >=Build.VERSION_CODES.O){
NotificationChannel channel = new NotificationChannel(CHANNEL_ID,"Channel", NotificationManager.IMPORTANCE_LOW);
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
manager.createNotificationChannel(channel);
}
}
}

这是我的Arduino代码

#if defined(ESP32)
#include <WiFi.h>
#include <FirebaseESP32.h>
#elif defined(ESP8266)
#include <ESP8266WiFi.h>
#include <FirebaseESP8266.h>
#endif
const int analogInPin =A0;
int moistureValue = 0;
//Provide the token generation process info.
#include "addons/TokenHelper.h"
//Provide the RTDB payload printing info and other helper functions.
#include "addons/RTDBHelper.h"
/* 1. Define the WiFi credentials */
#define WIFI_SSID ""
#define WIFI_PASSWORD ""
#define API_KEY "API_KEY"
#define DATABASE_URL "tokenapp-ba3e5-default-rtdb.firebaseio.com" 
#define FIREBASE_FCM_SERVER_KEY ""
#define FIREBASE_FCM_DEVICE_TOKEN_1 " "
//#define FIREBASE_FCM_DEVICE_TOKEN_2 "ANOTHER_RECIPIENT_DEVICE_TOKEN"
#define USER_EMAIL "USER_EMAIL"
#define USER_PASSWORD "USER_PASSWORD"
FirebaseData fbdo;
//int counterHigh =0, counterLow =0;
void sendLowMessage();
void sendHighMessage();
FirebaseAuth auth;
FirebaseConfig config;
unsigned long sendDataPrevMillis = 0;
void setup()
{
Serial.begin(115200);
Serial.println();
Serial.println();
pinMode(D1,OUTPUT);
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
Serial.print("Connecting to Wi-Fi");
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
delay(300);
}
Serial.println();
Serial.print("Connected with IP: ");
Serial.println(WiFi.localIP());
Serial.println();
Serial.printf("Firebase Client v%snn", FIREBASE_CLIENT_VERSION);

Firebase.begin(DATABASE_URL, "");
Firebase.reconnectWiFi(true);
fbdo.fcm.begin(FIREBASE_FCM_SERVER_KEY);
fbdo.fcm.addDeviceToken(FIREBASE_FCM_DEVICE_TOKEN_1);
// fbdo.fcm.addDeviceToken(FIREBASE_FCM_DEVICE_TOKEN_2);
fbdo.fcm.setPriority("low");
fbdo.fcm.setTimeToLive(1000);
if (!Firebase.beginStream(fbdo, "/PUMP_STATUS"))
Serial.printf("stream begin error, %snn", fbdo.errorReason().c_str());
fbdo.setBSSLBufferSize(512, 2048);
}
void loop()
{
moistureValue= analogRead(analogInPin);
Serial.println("Moisture Reading = ");
Serial.print(moistureValue);
if (Firebase.ready() && (millis() - sendDataPrevMillis > 5000 || sendDataPrevMillis == 0))
{
sendDataPrevMillis = millis();

Firebase.setIntAsync(fbdo, "/MOISTURE_READ", moistureValue);


}
if(moistureValue<300 )
{

sendLowMessage(); 



}
if(moistureValue>550 )
{

sendHighMessage();

}

if (Firebase.ready())
{
if (!Firebase.readStream(fbdo))
Serial.printf("sream read error, %snn", fbdo.errorReason().c_str());
if (fbdo.streamTimeout())
Serial.println("stream timeout, resuming...n");
if (fbdo.streamAvailable())
{

if(fbdo.stringData()== "ON"){
digitalWrite(D1,HIGH);
}
else{
digitalWrite(D1,LOW);
}
}
}  
}  


void sendHighMessage()
{
fbdo.fcm.setCollapseKey("MyKey");
fbdo.fcm.addCustomNotifyMessage("tag","MoistureNotification");

fbdo.fcm.setNotifyMessage("Heya User", "The value of moisture in the soil is " + String(moistureValue) + "n Please Switch ON the water pump");
//fbdo.fcm.setDataMessage("{"myData":" + String(moistureValue) + "}");
//Firebase.broadcastMessage(fbdo)
//Firebase.sendTopic(fbdo)
Serial.printf("Send message... %sn", Firebase.sendMessage(fbdo, 0) ? "ok" : fbdo.errorReason().c_str());

if (fbdo.httpCode() == FIREBASE_ERROR_HTTP_CODE_OK)
Serial.println(fbdo.fcm.getSendResult());

Serial.println();

}
void sendLowMessage()
{
fbdo.fcm.setCollapseKey("MyKey");
fbdo.fcm.addCustomNotifyMessage("tag","MoistureNotification");
fbdo.fcm.setNotifyMessage("Heya User", "The value of moisture in the soil is " + String(moistureValue) + "n Please Switch OFF the water pump");
//fbdo.fcm.setDataMessage("{"myData":" + String(moistureValue) + "}");
//Firebase.broadcastMessage(fbdo)
//Firebase.sendTopic(fbdo)
Serial.printf("Send message... %sn", Firebase.sendMessage(fbdo, 0) ? "ok" : fbdo.errorReason().c_str());
if (fbdo.httpCode() == FIREBASE_ERROR_HTTP_CODE_OK)
Serial.println(fbdo.fcm.getSendResult());

Serial.println();
}

在我的MainActivity.java类中，我只是检索我的设备令牌，仅此而已。

Answer 1

请尝试此

PendingIntent pendingIntent = PendingIntent.getActivity(ctx, notificationNumber, intent,PendingIntent.FLAG_UPDATE_CURRENT);

请尝试从下面的链接实现这种方式可能会帮助你

https://stackoverflow.com/a/68487811/4042384