Hide notification preview

[niababes]

Hello. Is it possible to hide message previews on notifications when you're using your phone just like in iPhones?

[summeRamirez]

Can you elaborate on what you meant by "hide message previews"?

[niababes]

Hello there. What I mean is that preview of the notification should also be hidden just like when screen is locked (refer to the pics attached. 1st pic is from iPhone where notification concent is hidden while second pic is from my Samsung, content is showing). I think messenger has that kind of feature now but how about other apps?