Merge remote-tracking branch 'refs/remotes/origin/prep-v-1.2.0' into prep-v0.2.0

lib/screens/home.dart

@@ -71,19 +71,35 @@ class _HomeScreenState extends State<HomeScreen> {
           title: Row(
             mainAxisAlignment: MainAxisAlignment.start,
             children: [
-              DropdownButton<TimelineType>(
-                  value: currentType,
-                  items: types
-                      .map((e) => DropdownMenuItem<TimelineType>(
-                            value: e,
-                            child: Text(e.toLabel()),
-                          ))
-                      .toList(),
-                  onChanged: (value) {
-                    setState(() {
-                      currentType = value!;
-                    });
-                  }),
+              if (currentType == TimelineType.group)
+                PopupMenuButton<TimelineType>(
+                    initialValue: currentType,
+                    // Callback that sets the selected popup menu item.
+                    onSelected: (value) {
+                      setState(() {
+                        currentType = value;
+                      });
+                    },
+                    itemBuilder: (BuildContext context) => types
+                        .map((e) => PopupMenuItem<TimelineType>(
+                              value: e,
+                              child: Text(e.toLabel()),
+                            ))
+                        .toList()),
+              if (currentType != TimelineType.group)
+                DropdownButton<TimelineType>(
+                    value: currentType,
+                    items: types
+                        .map((e) => DropdownMenuItem<TimelineType>(
+                              value: e,
+                              child: Text(e.toLabel()),
+                            ))
+                        .toList(),
+                    onChanged: (value) {
+                      setState(() {
+                        currentType = value!;
+                      });
+                    }),
               const HorizontalPadding(
                 width: 5.0,
               ),