RxInterface.notifyChildren

@@ -18,4 +18,23 @@ abstract class RxInterface<T> {
   /// Calls [callback] with current value, when the value changes.
   /// Calls [callback] with current value, when the value changes.
   StreamSubscription<T> listen(void Function(T event) onData,
   StreamSubscription<T> listen(void Function(T event) onData,
       {Function? onError, void Function()? onDone, bool? cancelOnError});
       {Function? onError, void Function()? onDone, bool? cancelOnError});
+
+  /// Avoids an unsafe usage of the `proxy`
+  static T notifyChildren<T>(RxNotifier observer, ValueGetter<T> builder) {
+    final _observer = RxInterface.proxy;
+    RxInterface.proxy = observer;
+    final result = builder();
+    if (!observer.canUpdate) {
+      throw """
+      [Get] the improper use of a GetX has been detected. 
+      You should only use GetX or Obx for the specific widget that will be updated.
+      If you are seeing this error, you probably did not insert any observable variables into GetX/Obx 
+      or insert them outside the scope that GetX considers suitable for an update 
+      (example: GetX => HeavyWidget => variableObservable).
+      If you need to update a parent widget and a child widget, wrap each one in an Obx/GetX.
+      """;
+    }
+    RxInterface.proxy = _observer;
+    return result;
+  }
 }
 }