How to hide the top title bar?

How to hide the top of the bar in full screen mode ?

Thank you for participating in the Samsung Developer Forum. I saw that this was a bug in Tab 5 is that what you are using?

Sorry but this is not the correct forum for end product questions or concerns it is for DeX development. Because end user questions disrupt developer discussion this thread will be removed at some point but I’ll leave it open for a short time in case others have suggestions.

Ron
Samsung Developer Program

I‘m sorry I’m a developer.I tried the code in the dex development guide,but it failed to be true immersive because the header bar is not hiden.And my device is Tab S6

Thanks for the clarification, I’ll let your question stay in hopes that someone else has an answer.

Ron
Samsung Developer Program