Added dispose check on RefreshFutureBuilder

lib/components/refresh_future_builder.dart

@@ -14,6 +14,7 @@ class RefreshFutureBuilder<T> extends StatefulWidget {
 class _RefreshFutureBuilderState<T> extends State<RefreshFutureBuilder<T>> {
   late RefreshFutureBuilderSnapshot<T> snapshot;
   Future<T> Function()? futureCreator;
+  bool _disposed = false;
 
   @override
   void initState() {
@@ -61,11 +62,17 @@ class _RefreshFutureBuilderState<T> extends State<RefreshFutureBuilder<T>> {
     });
     try {
       final data = await futureCreator!();
+      if (_disposed) {
+        return;
+      }
       setState(() {
         snapshot = RefreshFutureBuilderSnapshot.withData(data);
       });
     }
     catch (e, st) {
+      if (_disposed) {
+        return;
+      }
       setState(() {
         if (snapshot.state == RefreshFutureBuilderState.waiting) {
           snapshot = RefreshFutureBuilderSnapshot.withError(e, st);
@@ -77,6 +84,12 @@ class _RefreshFutureBuilderState<T> extends State<RefreshFutureBuilder<T>> {
     }
   }
 
+  @override
+  void dispose() {
+    _disposed = true;
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return widget.builder(