feat(ui_firestore): Added empty builder in FirestoreListView (#9916)

* Added empty builder in FirestoreListView #8614 fixed * fixed format
firebase · Nov 14, 2022 · 4a079d1 · 4a079d1
1 parent 343e6ed
commit 4a079d1
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/packages/firebase_ui_firestore/lib/src/query_builder.dart b/packages/firebase_ui_firestore/lib/src/query_builder.dart
@@ -362,6 +362,9 @@ typedef FirestoreErrorBuilder = Widget Function(
   StackTrace stackTrace,
 );
 
+/// A type representing the function passed to [FirestoreListView] for its `emptyBuilder`.
+typedef FirestoreEmptyBuilder = Widget Function(BuildContext context);
+
 /// {@template firebase_ui.firestorelistview}
 /// A [ListView.builder] that obtains its items from a Firestore query.
 ///
@@ -422,6 +425,7 @@ class FirestoreListView<Document> extends FirestoreQueryBuilder<Document> {
     int pageSize = 10,
     FirestoreLoadingBuilder? loadingBuilder,
     FirestoreErrorBuilder? errorBuilder,
+    FirestoreEmptyBuilder? emptyBuilder,
     Axis scrollDirection = Axis.vertical,
     bool reverse = false,
     ScrollController? controller,
@@ -459,6 +463,10 @@ class FirestoreListView<Document> extends FirestoreQueryBuilder<Document> {
               );
             }
 
+            if (snapshot.docs.isEmpty && emptyBuilder != null) {
+              return emptyBuilder(context);
+            }
+
             return ListView.builder(
               itemCount: snapshot.docs.length,
               itemBuilder: (context, index) {