Do not show notifications on lock screen - Android

By default, Android displays notifications for new mails, messages, ..., on your lock screen. However, for privacy reasons, you may not want anyone to see an overview of this information, even if a PIN is then requested to access the full events. You can configure the system to no longer display notifications on the lock screen. They will appear after you unlock the screen.
1-Touch the Settings icon.


2-Touch the Sounds & Notifications item.



3-Touch the item If the device is locked.