Even though we block the screen, you can still use navigation.
You can use Apple Maps for full navigation.
With other navigation you will hear the sound of the navigation, but you will not see the map in front of you.
As soon as you start driving and there are no instructions, the screen will turn black after the self-set sleep time of your phone, but well before you need a turn / turn, the screen will turn on and you will have visual navigation.
Immediately view the map? Then click on the on / off button once.
If you want to use a music app, such as Spotify, while driving, start it up before you start driving.
The Bluetooth connection that streams the music to your car will continue to work, but you cannot operate the app while driving.