Adding Android Auto support for an already existing MAUI application

Question

We are integrating some media player functionalities for Android Auto/Cars support with MAUI mobile application.

I am able to play some sample media with .Net MAUI for the Android platform, But when I am giving support for Android AUTO/Cars, I am unable to see anything on the Android DHU(Android AUTO console). I did all the necessary configurations on the manifest file related to metadata with com.google.android.gms.car.application.

Could anyone help here with any samples for getting started with .Net MAUI with a media player for Android AUTO support?

Thanks in Advance.

Answer 1

You can find some information in MAUI GitHub discussion. Run https://www.youtube.com/watch?v=nNkVxegb2oU. Take a look at .NET MAUI for cars: Android Auto Tutorial. Good luck.

Answer 2

If your goal is to enable Android Auto or Android Automotive support in a .NET MAUI app that already includes media or diagnostic functions, keep in mind that the Auto platform does not render your regular MAUI UI — it only accepts predefined car templates through the AndroidX Car App Library.

Here’s a working direction based on what we’ve implemented successfully:

1. Add the CarAppService

   
      <service
   
          android:name=".CarAppService"
   
          android:exported="true">
   
          <intent-filter>
   
              <action android:name="androidx.car.app.CarAppService" />
   
          </intent-filter>
   
          <meta-data
   
              android:name="androidx.car.app"
   
              android:resource="@xml/automotive_app_desc" />
   
      </service>
   
   

Create a Session class that defines which template to show (for example, ListTemplate or NavigationTemplate).

Without this, nothing will appear in the Android DHU (Desktop Head Unit).

Set the correct permissions & SDK level:

Target SDK 33+, and include the androidx.car.app:app-automotive dependency.

Testing tip:

Use the DHU or the Android Automotive emulator with developer options enabled.

Ensure the app is installed with the same signing key.

We’ve also documented a working example of integrating Android Auto with vehicle diagnostic and ECU-related apps here:

👉 Android Auto Integration Example for Car Diagnostic Tools (Motologik.com)

That guide includes tested manifest examples, template setup, and common visibility fixes for MAUI + Auto apps.