如何在后台和Kill中自定义打开/关闭推送通知

Question

我需要开发自定义的关闭/打开推送通知。值"on"或"off"我从SharedPreferences获得。

在Foreground中，关闭选项运行良好，因为它可以在onMessageReceived中设置。

但是如何为"杀死"one_answers"背景"模式做这些选项呢？

对于发送推送通知，我使用Postman。

我在FMC中的代码：

class MyFirebaseMessagingService : FirebaseMessagingService() {
private val CURRENT_PUSH = "currentPush"
private var sPref: SharedPreferences? = null
override fun onMessageReceived(remoteMessage: RemoteMessage?) {
super.onMessageReceived(remoteMessage)
if(loadCurrentPushNotification()) {
if (remoteMessage!!.data != null) sendNotification(remoteMessage)
}
}
private fun sendNotification(remoteMessage: RemoteMessage) {
val data = remoteMessage.data
val title = data["title"]
val content = data["content"]
val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
val NOTIFICATION_CHANNEL_ID = "1234"
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
@SuppressLint("WrongConstant") val notificationChannel = NotificationChannel(NOTIFICATION_CHANNEL_ID,
"SA Notification",
NotificationManager.IMPORTANCE_MAX)
notificationChannel.description = "SA channel notification"
notificationChannel.enableLights(true)
notificationChannel.lightColor = Color.RED
notificationChannel.vibrationPattern = longArrayOf(0, 1000, 500, 1000)
notificationChannel.enableVibration(true)
notificationManager.createNotificationChannel(notificationChannel)
}

val notificationBuilder = NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
notificationBuilder.setAutoCancel(true)
.setDefaults(Notification.DEFAULT_ALL)
.setWhen(System.currentTimeMillis())
.setSmallIcon(R.drawable.sa_launcher)
.setContentTitle(title)
.setContentText(content)
.setContentInfo("Breaking")
notificationManager.notify(1, notificationBuilder.build())
}
private fun loadCurrentPushNotification(): Boolean { //to read the status push notification from SharedPreferences
sPref = getSharedPreferences("pushesOnOff", Context.MODE_PRIVATE)
return sPref!!.getBoolean(CURRENT_PUSH, true)
}
}

Answer 1

我怀疑您的推送通知负载/内容包含类似的notification密钥

notification : { 'title':'This is title' }

如果这是真的，那么当您的应用程序被终止时，您将不会收到onMessageReceived回调，因此您的检查将不起作用。为了防止这种情况，请从您的有效负载中删除notification，只发送data，它应该可以在android端工作，不会有任何更改。

你可以在这里了解这种行为。