From 4ade7c2c6e2db844c5c644addba1bbb150fa2ea3 Mon Sep 17 00:00:00 2001
From: Sonu Sharma <sonu.sharma045@gmail.com>
Date: Mon, 27 May 2024 21:45:09 +0530
Subject: [PATCH] Fix: search filter issue after its being empty
 Ref:-https://github.com/TheAlphamerc/filterlist/issues/49

---
 lib/src/filter_list_widget.dart | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/lib/src/filter_list_widget.dart b/lib/src/filter_list_widget.dart
index 02ffd05..cd4d09b 100644
--- a/lib/src/filter_list_widget.dart
+++ b/lib/src/filter_list_widget.dart
@@ -187,10 +187,28 @@ class FilterListWidget<T extends Object> extends StatelessWidget {
                   hideCloseIcon: hideCloseIcon,
                   headerCloseIcon: headerCloseIcon,
                   onSearch: (String value) {
+                    final stateList = FilterState.of<T>(context).items;
+
+                    // Reset filter list if search box is empty
                     if (value.isEmpty) {
                       FilterState.of<T>(context).items = listData;
                       return;
                     }
+                    // Reassign items to filter list when it is empty but local list has data
+                    else if (stateList != null &&
+                        stateList.isEmpty &&
+                        listData != null &&
+                        listData!.isNotEmpty) {
+                      final isFoundInLocalState =
+                          listData!.any((item) => onItemSearch(item, value));
+
+                      if (isFoundInLocalState) {
+                        FilterState.of<T>(context).items = listData!
+                            .where((item) => onItemSearch(item, value))
+                            .toList();
+                        return;
+                      }
+                    }
                     FilterState.of<T>(context)
                         .filter((item) => onItemSearch(item, value));
                   },