Screen sharing waits 30 seconds for the car to come back, and the address card shows once per car again

A wireless reconnect takes longer than 3 seconds, which had the driver asked to share the screen
again mid-drive. Cars that wait for a tap on their icon no longer get the address card every drive.

gearslip/src/main/java/app/seb3thehacker/gearslip/audio/CarAudio.kt

@@ -88,8 +88,12 @@ object CarAudio {
         main.postDelayed(releaseWhenGone, CAR_GONE_MS)
     }
 
-    /** How long after the car leaves the capture waits for it to come back: a cable that slips. */
-    private const val CAR_GONE_MS = 3_000L
+    /**
+     * How long after the car leaves the capture waits for it to come back: a cable that slips, or a
+     * wireless link that drops and reconnects, which can take well over 3 seconds. Stopping sooner
+     * would have Android ask the driver to share the screen again in the middle of a drive.
+     */
+    private const val CAR_GONE_MS = 30_000L
 
     /**
      * The car wants sound. Safe to call as often as the session likes: the consent dialog appears

gearslip/src/main/java/app/seb3thehacker/gearslip/car/CarBluetooth.kt

@@ -106,14 +106,14 @@ object CarBluetooth {
     }
 
     /**
-     * Once per car: it waits on the phone, and the car screen says so once. [again] asks a car
-     * that was asked before, for one that keeps its screen until it knows the phone.
+     * Once per car: it waits on the phone, and the car screen says so once. A car that keeps its
+     * screen isn't asked again on every drive: plenty of cars just wait for a tap on their icon.
      */
     @SuppressLint("MissingPermission")
-    private fun askForAddress(device: BluetoothDevice, carAddress: String, again: Boolean = false) {
+    private fun askForAddress(device: BluetoothDevice, carAddress: String) {
         val context = appContext ?: return
         val asked = AppSettings.getString(context, KEY_ADDRESS_ASKED, "").split(",").filter { it.isNotEmpty() }
-        if (hash(carAddress) in asked && !again) return
+        if (hash(carAddress) in asked) return
         AppSettings.putString(context, KEY_ADDRESS_ASKED, (asked + hash(carAddress)).distinct().joinToString(","))
         val name = runCatching { device.alias ?: device.name }.getOrNull()?.takeIf { it.isNotBlank() }
             ?: context.getString(R.string.bt_address_your_car)
@@ -187,7 +187,7 @@ object CarBluetooth {
         val device = device() ?: return false
         return when {
             device.bondState == BluetoothDevice.BOND_BONDED -> {
-                askForAddress(device, c.service.carAddress, again = true)
+                askForAddress(device, c.service.carAddress)
                 announce("the car is keeping its screen")
                 true
             }