[Flutter] Build scheduled during frame

scroll을 할때 animatedcontainer의 크기를 변경하려고 하는데 다음과 같은 에러가 발생한다.

Build scheduled during frame.

While the widget tree was being built, laid out, and painted, a new frame was scheduled to rebuild the widget tree.

해결 방법은 간단하다.

setState를 다음과 같이 수정해주면 된다.

WidgetsBinding.instance.addPostFrameCallback((_) {
  setState(() {});
});

 

[Reference]

https://github.com/gonuit/flutter-custom-refresh-indicator/issues/9