@zacksleo
Using "add reaction" on the initial comment would increase priority while +1 comments are rather pointless and cause lots of people to get notified for no reason.
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From what I've seen, you need to add some code to the android manifest to get your app registered as Android auto compatible with music or messages. What you can do is try to make a sample app that simply sends messages and add the corresponding Info to your manifest and see if it registers. If so, a plugin can be made and bam, instant support. I'm still researching how to make the UIs

@ThinkDigitalRepair Did you get anywhere with this?

No, I switched to other things :/

From my experience with CarPlay, it requires the implementation of specific CarPlay framework classes. The app needs to have custom entitlements and it also require the app to be approved by Apple but this is not complicated to manage and has no relation with flutter itself. Note that only certain apps are eligible for CP.

IMO, the complexity comes from the fact that CarPlay interfaces have very strict HMI guidelines and apple has enforced this in the API design. CarPlay uses a different Window to present the interface so, although it is possible this requires a deep discussion.

@khalithartmann Most of the CarPlay support requires custom classes from CarPlayKit. Furthermore, the touch areas / ui design has very specific guidelines enforced by each class. IT would be easier to develop this natively.