Vis ventestatus i botnark når GPS ikkje er tilgjengeleg

Når tilfluktsromdata er lasta men GPS-posisjon manglar, viser
botnaka no «Ventar på GPS…» i staden for å vera tom. Posisjonsfiks
erstattar ventestatusen automatisk når han kjem.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/src/main/java/no/naiv/tilfluktsrom/MainActivity.kt

@@ -298,7 +298,11 @@ class MainActivity : AppCompatActivity(), SensorEventListener {
                                     Toast.makeText(this@MainActivity, R.string.error_shelter_not_found, Toast.LENGTH_SHORT).show()
                                 }
                             }
-                            currentLocation?.let { updateNearestShelters(it) }
+                            if (currentLocation != null) {
+                                updateNearestShelters(currentLocation!!)
+                            } else {
+                                showWaitingForLocation()
+                            }
                         }
                     } catch (e: CancellationException) {
                         throw e
@@ -724,6 +728,15 @@ class MainActivity : AppCompatActivity(), SensorEventListener {
         binding.loadingOverlay.visibility = View.GONE
     }
 
+    /**
+     * Show a waiting state in the bottom sheet when shelters are loaded
+     * but no GPS fix is available yet.
+     */
+    private fun showWaitingForLocation() {
+        binding.selectedShelterAddress.text = getString(R.string.status_no_location)
+        binding.selectedShelterDetails.text = getString(R.string.status_shelters_loaded, allShelters.size)
+    }
+
     /** Persist last GPS fix so the widget can use it even when the app isn't running. */
     private fun saveLastLocation(location: Location) {
         getSharedPreferences("widget_prefs", Context.MODE_PRIVATE).edit()