From d724abf91595f58ed58f6c722ebe60acdb750c67 Mon Sep 17 00:00:00 2001
From: laiiihz <laiiihz@outlook.com>
Date: Fri, 5 Mar 2021 14:25:16 +0800
Subject: [PATCH] fix null check op

---
 lib/src/animated_rotate.dart | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/src/animated_rotate.dart b/lib/src/animated_rotate.dart
index ec51dab..d01e976 100644
--- a/lib/src/animated_rotate.dart
+++ b/lib/src/animated_rotate.dart
@@ -35,9 +35,9 @@ class _AnimatedRoateState extends AnimatedWidgetBaseState<AnimatedRotate> {
   }
 
   @override
-  void forEachTween(visitor) {
+  void forEachTween(TweenVisitor<dynamic> visitor) {
     _rotateTween = visitor(
-      _rotateTween!,
+      _rotateTween,
       widget.angle,
       (dynamic value) => Tween<double>(begin: value as double),
     ) as Tween<double>?;