如何在Android中使用SetGroup()在组中显示通知

Question

我尝试使用" 0"通知ID和唯一的通知ID。也使用以下使用SetGroup((。它仍然每次都会生成新的通知。我想合并通知主体并将标题设置为常见。

class MyFirebaseMessagingService : FirebaseMessagingService() {
override fun onMessageReceived(remoteMessage: RemoteMessage?) {
    super.onMessageReceived(remoteMessage)
    remoteMessage?.let {
        sendNotification(it.data["alert"])
    }
}
private fun sendNotification(messageBody: String?) {
    val channelId = "${this.packageName}-${this.getString(R.string.app_name)}"
    val defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
    val builder = NotificationCompat.Builder(this, channelId).apply {
        setDefaults(Notification.DEFAULT_ALL)
        setSmallIcon(if (Build.VERSION.SDK_INT >= 21) R.mipmap.ic_launcher else R.mipmap.ic_launcher_round)
        setContentTitle(getString(R.string.app_name))
        setContentText(messageBody)
        setDefaults(NotificationCompat.DEFAULT_SOUND or NotificationCompat.DEFAULT_VIBRATE or NotificationCompat.DEFAULT_LIGHTS)
        setStyle(NotificationCompat.BigTextStyle().bigText(messageBody))
        priority = NotificationCompat.PRIORITY_DEFAULT
        setAutoCancel(true)
        setSound(defaultSoundUri)
        setGroup(getString(R.string.app_name))
        setGroupSummary(true)
    }
    val manager = getSystemService(NOTIFICATION_SERVICE) as? NotificationManager
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        val channel = NotificationChannel(channelId, getString(R.string.default_channel_name), NotificationManager.IMPORTANCE_HIGH)
        manager?.createNotificationChannel(channel)
    }
    val intent = Intent(this, DashboardFlowActivity::class.java)
    intent.putExtra(DashboardFlowActivity.ISFROMNOTIFICATION, true)
    intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
    val pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT)
    builder.setContentIntent(pendingIntent)
    //manager?.cancelAll()
    manager?.notify(this.getString(R.string.app_name), getID(), builder.build())
}
}
private val c = AtomicInteger(0)
private fun getID(): Int {
   return c.incrementAndGet()
}

我在这里做错了什么？另外，我已经完成了这个答案。setGroup((在通知中不起作用

Answer 1

最后，我使用https://stackoverflow.com/a/41114135/6021469为这个问题提供了解决方案

class MyFirebaseMessagingService : FirebaseMessagingService() {
override fun onMessageReceived(remoteMessage: RemoteMessage?) {
    super.onMessageReceived(remoteMessage)
    remoteMessage?.let {
        sendNotification(it.data["alert"])
    }
}
private fun sendNotification(messageBody: String?) {
    val channelId = "${this.packageName}-${this.getString(R.string.app_name)}"
    val defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
    val builder = NotificationCompat.Builder(this, channelId).apply {
        setDefaults(Notification.DEFAULT_ALL)
        setSmallIcon(if (Build.VERSION.SDK_INT >= 21) R.mipmap.ic_launcher else R.mipmap.ic_launcher_round)
        setContentTitle(getString(R.string.app_name))
        setShowWhen(true)
        setContentText(messageBody)
        setDefaults(NotificationCompat.DEFAULT_SOUND or NotificationCompat.DEFAULT_VIBRATE or NotificationCompat.DEFAULT_LIGHTS)
        setStyle(NotificationCompat.BigTextStyle().bigText(messageBody))
        priority = NotificationCompat.PRIORITY_DEFAULT
        setAutoCancel(true)
        setShowWhen(true)
        setSound(defaultSoundUri)
        setGroup(getString(R.string.app_name))
    }
    val builderSummary = NotificationCompat.Builder(this, channelId).apply {
        setDefaults(Notification.DEFAULT_ALL)
        setSmallIcon(if (Build.VERSION.SDK_INT >= 21) R.mipmap.ic_launcher else R.mipmap.ic_launcher_round)
        setContentTitle(getString(R.string.app_name))
        setShowWhen(true)
        setContentText(messageBody)
        setDefaults(NotificationCompat.DEFAULT_SOUND or NotificationCompat.DEFAULT_VIBRATE or NotificationCompat.DEFAULT_LIGHTS)
        setStyle(NotificationCompat.BigTextStyle().bigText(messageBody))
        priority = NotificationCompat.PRIORITY_DEFAULT
        setAutoCancel(true)
        setShowWhen(true)
        setSound(defaultSoundUri)
        setGroup(getString(R.string.app_name))
        setGroupSummary(true)
    }
    val manager = getSystemService(NOTIFICATION_SERVICE) as? NotificationManager
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        val channel = NotificationChannel(channelId, getString(R.string.default_channel_name), NotificationManager.IMPORTANCE_HIGH)
        manager?.createNotificationChannel(channel)
    }
    val intent = Intent(this, DashboardFlowActivity::class.java)
    intent.putExtra(DashboardFlowActivity.ISFROMNOTIFICATION, true)
    intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
    val pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT)
    builder.setContentIntent(pendingIntent)

    manager?.notify(this.getString(R.string.app_name), getID(), builder.build())
    manager?.notify(this.getString(R.string.app_name), 0, builderSummary.build())
  }
}
private val c = AtomicInteger(0)
private fun getID(): Int {
   return c.incrementAndGet()
}