A wireless drive keeps Gearslip in the foreground

From the moment the car's Bluetooth channel opens until the drive ends, a quiet
notification keeps Gearslip in the foreground, so Android lets it join the car's
Wi-Fi with the phone locked.

gearslip/src/main/AndroidManifest.xml

@@ -19,6 +19,8 @@
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_LOCATION" />
+    <!-- Keeps a wireless start going with the phone locked; see WirelessKeepAlive. -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE" />
 
     <!--
         Wireless Android Auto: Bluetooth reaches the paired car's Android Auto service, which
@@ -204,6 +206,11 @@
             android:exported="false"
             android:foregroundServiceType="location" />
 
+        <service
+            android:name=".wireless.WirelessKeepAlive"
+            android:exported="false"
+            android:foregroundServiceType="connectedDevice" />
+
         <!--
           Holds the capture session that carries a media app's audio to the car. It also claims
           the microphone, so voice replies can hear the driver with the phone locked.