Request permissions

If your app needs access to restricted data or actions—for example, location—the standard rules of Android permissions apply. To request a permission, you can use the CarContext.requestPermissions() method.

The benefit of using CarContext.requestPermissions(), as opposed to using standard Android APIs, is that you needn't launch your own Activity to create the permissions dialog. Moreover, you can use the same code on both Android Auto and Android Automotive OS, instead of creating platform-dependent flows.

Style the permissions dialog on Android Auto

On Android Auto, the permissions dialog for the user appears on the phone. By default, there's no background to the dialog.

To set a custom background:

  1. To declare a car app theme in your AndroidManifest.xml file and set the carPermissionActivityLayout attribute for your car app theme:

    <meta-data
   android:name="androidx.car.app.theme"
   android:resource="@style/<var>MyCarAppTheme</var> />

  2. To set the carPermissionActivityLayout attribute for your car app theme:

    <resources>
 <style name="<var>MyCarAppTheme</var>">
   <item name="carPermissionActivityLayout">@layout/<var>my_custom_background</var></item>
 </style>
</resources>
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Connection API