Change your notification preferences to better fit your personal preferences.
1.
From the Settings app, tap Notifications.
2.
From this screen there are several settings that allow you to manage your notifications. Here’s what each one does:
Notifications on lock screen - Select to Show all notifications, Hide silent conversations and notifications, or Do not show any notifications on your lock screen. You can also toggle on sensitive notifications and this will hide sensitive content when your device is locked.
Notifications cooldown - When toggled on, will minimize alerts and lower your device volume if you receive too many notifications in a short period of time.