How can I use deep linking in FCM? The main goal is for the user to click on the notification from FCM a specific page and have it open in the application.
I can't find the way/place where I can insert the link (onelink, dynamic link and etc.). Currently, the app opens the last active window after clicking on notification.
There are 2 types of messages in FCM: notification message and data message. You can't use deeplinking with notification messages because it doesn't call a handler in your app that you can react to.
Instead, send a data message, and in onMessageReceived, generate your own notification. Take a look at the documentation for implementing onMessageReceived.
The documentation links to a file which shows an example of creating a notification, where they define the following method:
private void sendNotification(String messageBody) {
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.ic_stat_ic_notification)
.setContentTitle(getString(R.string.fcm_message))
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
"Channel human readable title",
NotificationManager.IMPORTANCE_DEFAULT);
notificationManager.createNotificationChannel(channel);
}
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
You'll notice the example creates a pendingIntent. You'll need to modify that to call .setComponentName(DestinationActivity.class) if you want to create an Explicit deep link. There's more documentation about that in Create a deep link for a destination.