How to make my notifications appear on lock screen

[Android Central Question]

I have a huawei p20. When applying an installed theme my notifications does not appear on my lock screen. Is it really like that?

 

[nlm]

Not sure what you mean by installed theme. If this is an emulator it will display over your lockscreen. For example this is how 3rd party Always On Displays work. It's just an app that displays information over your lockscreen.

Otherwise make sure lock screen notifications are turned on. Settings>Notifications>Lock screen notifications