The function that fixes the screen so that only the App that is running now can be used.
If you fix the screen, the running App is not stopped even though you press the Touch button by mistake.
Or, you can show the desired App only when you share your mobile phone with others.
How to fix the screen
1. Turn on the screen fixing function using the Settings > General > Fingerprint and security > Fix screen menu.
2. Select an App to use the screen fixing function.
3. Click the Recently used button to open the recent use history screen.
How to cancel screen fixing
To cancel screen fixing, press and hold the Previous button and Recently used button.
If the screen is fixed, you may not be able to receive a missing call, e-mail or App notification.
If you want to prevent others from canceling screen locking and using the phone, select the Settings > Fingerprint and security > Fix screen menu and set Move to the locking screen when canceling screen fixing. If the pertinent function is set, you have to input the knock code, pattern or PIN to cancel screen fixing.