feat: add post frame call back

Author: ziqq

example/pubspec.lock

@@ -49,7 +49,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.1.0"
+    version: "1.1.1"
   fake_async:
     dependency: transitive
     description:

lib/src/custom_refresh_indicator.dart

@@ -206,7 +206,10 @@ class CustomRefreshIndicatorState extends State<CustomRefreshIndicator>
 
     if (_canStart) setIndicatorState(IndicatorState.dragging);
 
-    controller.setAxisDirection(notification.metrics.axisDirection);
+    WidgetsBinding.instance!.addPostFrameCallback((_) {
+      controller.setAxisDirection(notification.metrics.axisDirection);
+    });
+
     return false;
   }