feat: add forceReloadIndexes

Author: colonal

lib/lazy_load_indexed_stack.dart

@@ -1,5 +1,3 @@
-library lazy_load_indexed_stack;
-
 import 'package:flutter/widgets.dart';
 
 /// An extended IndexedStack that builds the required widget only when it is needed, and returns the pre-built widget when it is needed again.
@@ -10,6 +8,9 @@ class LazyLoadIndexedStack extends StatefulWidget {
   /// The indexes of children that should be preloaded.
   final List<int> preloadIndexes;
 
+  /// The indexes of children that should be forcibly reloaded.
+  final List<int> forceReloadIndexes;
+
   /// Same as alignment attribute of original IndexedStack.
   final AlignmentGeometry alignment;
 
@@ -33,6 +34,7 @@ class LazyLoadIndexedStack extends StatefulWidget {
     super.key,
     Widget? unloadWidget,
     this.preloadIndexes = const [],
+    this.forceReloadIndexes = const [],
     this.alignment = AlignmentDirectional.topStart,
     this.sizing = StackFit.loose,
     this.textDirection,
@@ -65,6 +67,8 @@ class LazyLoadIndexedStackState extends State<LazyLoadIndexedStack> {
       _children = _initialChildren();
     }
 
+    _children = _updateChildrenForReload();
+
     _children[widget.index] = widget.children[widget.index];
   }
 
@@ -92,4 +96,17 @@ class LazyLoadIndexedStackState extends State<LazyLoadIndexedStack> {
       }
     }).toList();
   }
+
+  List<Widget> _updateChildrenForReload() {
+    return widget.children.asMap().entries.map((entry) {
+      final index = entry.key;
+      final childWidget = entry.value;
+
+      if (index != widget.index && widget.forceReloadIndexes.contains(index)) {
+        return widget.unloadWidget;
+      } else {
+        return childWidget;
+      }
+    }).toList();
+  }
 }