Erweiterungen

lib/content_views/tour_list_page.dart

@@ -98,19 +98,22 @@ class _TourListPageState extends State<TourListPage> {
               const SizedBox(width: 10),
               SizedBox(
                 width: 100,
-                child: ElevatedButton(
-                    style: ButtonStyle(
-                      shape: MaterialStateProperty.all<RoundedRectangleBorder>(
-                        RoundedRectangleBorder(
-                          borderRadius: BorderRadius.circular(8.0),
-                          side: const BorderSide(color: Colors.grey),
+                child: Visibility(
+                  visible: widget.job.tours[0].pos != null,
+                  child: ElevatedButton(
+                      style: ButtonStyle(
+                        shape: MaterialStateProperty.all<RoundedRectangleBorder>(
+                          RoundedRectangleBorder(
+                            borderRadius: BorderRadius.circular(8.0),
+                            side: const BorderSide(color: Colors.grey),
+                          ),
                         ),
+                        backgroundColor: MaterialStateProperty.all<Color>(Colors.lightGreen),
+                        foregroundColor: MaterialStateProperty.all<Color>(Colors.black),
                       ),
-                      backgroundColor: MaterialStateProperty.all<Color>(Colors.lightGreen),
-                      foregroundColor: MaterialStateProperty.all<Color>(Colors.black),
-                    ),
-                    onPressed: () => { showMapPopup(context, widget.job.tours[0], widget.job.tours)},
-                    child: const Text("Karte")))
+                      onPressed: () => { showMapPopup(context, widget.job.tours[0], widget.job.tours)},
+                      child: const Text("Karte")),
+                ))
             ],
           ),
           Expanded(