How to hide text message preview while i an using the phone?

[Jackye Ng]

Hi, i am using Galaxy S5, andriod 5.0. Can anyone tell me how to hide the message content in the notification bar when i am using the phone? Let the notification bar just show "1 new message"? Thank you.

 

[B. Diddy]

Welcome to Android Central! Try HeadsOff.

 

[Jackye Ng]

Don't really helps. This is for Lock screen notification.

 

[B. Diddy]

Are you saying that app is only for lockscreen notifications, or that you want to hide the preview in your lockscreen notification?