Visibilty VS Offstage이란!

🦥 Visibility vs Offstage

Visibility는 물리적 공간을 차지하면서 show/hide만 하지만

Offstage는 물리적 공간까지도 show/hide 해준다 (강추)

참고::

https://stackoverflow.com/questions/44489804/show-hide-widgets-in-flutter-programmatically

Try the Offstage widget

if attribute offstage:true the not occupy the physical space and invisible,

if attribute offstage:false it will occupy the physical space and visible

Offstage(
   offstage: true,
   child: Text("Visible"),
),

Opacity, which can stop its child from being painted.

Offstage, which can stop its child from being laid out or painted.

TickerMode, which can stop its child from being animated.

ExcludeSemantics, which can hide the child from accessibility tools.

IgnorePointer, which can disable touch interactions with the child.

Visibility 참고 자료

https://api.flutter.dev/flutter/widgets/Visibility-class.html

Offstage 참고 자료

https://api.flutter.dev/flutter/widgets/Offstage-class.html