added workflow to add bookmark from share intent

lib/pages/collections_list_page.dart

@@ -18,12 +18,23 @@ class CollectionsListPage extends StatefulWidget {
 
 class _CollectionsListPageState extends State<CollectionsListPage> {
   final collections = Storage.loadCollections();
+  bool addingNewBookmark = false;
 
   @override
   Widget build(BuildContext context) {
     final provider = context.watch<SharedLinkProvider>();
+    addingNewBookmark = provider.currentMapsLinkMetadata != null;
     return Scaffold(
-      appBar: AppBar(),
+      appBar: AppBar(
+        title: addingNewBookmark ? Text('Choose Collection') : null,
+        actions: [
+          if (addingNewBookmark)
+            TextButton(
+              onPressed: () => provider.removeCurrentMapsLink(),
+              child: Text('Cancel'),
+            ),
+        ],
+      ),
       floatingActionButton: FloatingActionButton(
         onPressed: onAddButtonPressed,
         child: Icon(Icons.add),
@@ -32,9 +43,9 @@ class _CollectionsListPageState extends State<CollectionsListPage> {
         itemBuilder: itemBuilder,
         itemCount: collections.length,
       ),
-      bottomSheet: provider.currentMapsLinkMetadata == null
-          ? null
-          : BottomSheet(onClosing: () {}, builder: bottomSheetBuilder),
+      // bottomSheet: provider.currentMapsLinkMetadata == null
+      //     ? null
+      //     : BottomSheet(onClosing: () {}, builder: bottomSheetBuilder),
     );
   }
 
@@ -51,29 +62,34 @@ class _CollectionsListPageState extends State<CollectionsListPage> {
     );
   }
 
-  void onAddButtonPressed() => showDialog(
-    context: context,
-    builder: (context) =>
-        CreateBookmarkCollectionDialog(onSavePressed: onCollectionSaved),
-  );
+  void onAddButtonPressed() =>
+      showDialog(
+        context: context,
+        builder: (context) =>
+            CreateBookmarkCollectionDialog(onSavePressed: onCollectionSaved),
+      ).whenComplete(() {
+        if (addingNewBookmark) navigateToCollection(collections.last.id);
+      });
 
   void onCollectionSaved(String name) {
     collections.add(Collection(name: name));
-    setState(() {});
     Storage.saveCollections(collections);
+    setState(() {});
   }
 
   Widget itemBuilder(BuildContext context, int index) {
     final collection = collections.elementAt(index);
     return ListTile(
       title: Text(collection.name),
-      onTap: () {
-        BookmarksProvider.selectedCollectionId = collection.id;
-        Navigator.pushNamed(context, CollectionPage.routeName);
-      },
+      onTap: () => navigateToCollection(collection.id),
     );
   }
 
+  void navigateToCollection(int collectionId) {
+    BookmarksProvider.selectedCollectionId = collectionId;
+    Navigator.pushNamed(context, CollectionPage.routeName);
+  }
+
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();