Custom FCM notifications stopped showing up on Android

Question

Hi custom FCM notifications have stopped showing up on Android. they used to work before but after I updated all the gradle libraries notifications have stopped showing up on the deivce.

The code is executed with breakpoints and no errors are shown but notifications are not shown.

I am clueless on how to investigate this.

any pointers would be very very useful.

This is the code that should show custom notifications with a two layouts for small and large notifications sizes.

    private fun showCustomPushNotification(message: RemoteMessage, chargerId: String) {
        val notificationLayout = RemoteViews(
            packageName,
            R.layout.pgin_requires_approval_notification_small
        )
        val notificationLayoutExpanded = RemoteViews(
            packageName,
            R.layout.pgin_requires_approval_notification_large
        )

        val title = message.data[MSG_TITLE]
        val subTitle = message.data[MSG_SUB_TITLE]

        notificationLayout.setTextViewText(R.id.tvTitle, title)
        notificationLayout.setTextViewText(R.id.tvSubTitle, subTitle)

        notificationLayoutExpanded.setTextViewText(R.id.tvTitle, title)
        notificationLayoutExpanded.setTextViewText(R.id.tvSubTitle, subTitle)

        val intent = Intent(this, MainActivity::class.java).apply {
            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
        }

        val pendingIntent: PendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE)

        val customNotification = NotificationCompat.Builder(
            this,
            CarInfoProcessingService.APPROVE_EACH_PGIN_NOTIFICATION_CHANNEL_ID
        )
            .setSmallIcon(R.mipmap.ic_launcher)
            .setStyle(NotificationCompat.DecoratedCustomViewStyle())
            .setCustomContentView(notificationLayout)
            .setCustomBigContentView(notificationLayoutExpanded)
            .setContentIntent(pendingIntent)
            .setAutoCancel(true)
            .setPriority(NotificationCompat.PRIORITY_MAX)
            .build()

        val approveIntent = Intent(this, CustomNotificationListener::class.java)
        approveIntent.putExtra("onClickListener", "approve")
        approveIntent.putExtra("chargerId", chargerId)
        val pendingApproveIntent = PendingIntent.getBroadcast(
            this,
            0,
            approveIntent,
            PendingIntent.FLAG_IMMUTABLE
        )
        notificationLayoutExpanded.setOnClickPendingIntent(R.id.btnApprove, pendingApproveIntent)

        val denyIntent = Intent(this, CustomNotificationListener::class.java)
        denyIntent.putExtra("onClickListener", "deny")
        denyIntent.putExtra("chargerId", chargerId)
        val pendingDenyIntent = PendingIntent.getBroadcast(
            this,
            1,
            denyIntent,
            PendingIntent.FLAG_IMMUTABLE
        )

        notificationLayoutExpanded.setOnClickPendingIntent(R.id.btnDeny, pendingDenyIntent)

        val notificationManager =
            getSystemService(NOTIFICATION_SERVICE) as NotificationManager
        notificationManager.notify(CustomNotificationListener.WHAT_NOTIFICATION_ID, customNotification)
}

Only change that I can think of is updating libraries in gradle but as it does not show any error I am clueless.

Thanks for your help in advance. R

score 0 · Answer 1 · answered Oct 25 '22 at 15:58

You say before update it was working. So after update i think you need to check versions for your code :
Define your pending intent like below :

val pendingIntent: PendingIntent? = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
            PendingIntent.getActivity(applicationContext, 0, intent, PendingIntent.FLAG_IMMUTABLE)
        } else {
            PendingIntent.getActivity(applicationContext, 0, intent, PendingIntent.FLAG_ONE_SHOT)
        }

You might wanna set priority for your notification, Build.VERSION_CODES.O and above will ignore that but older devices uses this:

customNotification.priority = NotificationCompat.PRIORITY_MAX

And for Build.VERSION_CODES.O and above notification channel is needed:

       if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            customNotification.setChannelId(Constants.NOTIFICATION_CHANNEL)     

            val channel =
                NotificationChannel(
                    Constants.NOTIFICATION_CHANNEL,
                    Constants.NOTIFICATION_NAME,
                    NotificationManager.IMPORTANCE_HIGH
                )

            notificationManager.createNotificationChannel(channel)
        }

For the constans i used they are just strings:

    const val NOTIFICATION_NAME = "YourApp"
    const val NOTIFICATION_CHANNEL = "YourApp_channel_01"

Just change your code regarding to this and it will work. If you can not manage to do that please let me know.

Custom FCM notifications stopped showing up on Android

1 Answers1