[Flutter] scroll keyboard hide

flutter 스크롤시 keyboard 숨기기!

 

Scaffold(
	...
	body: GestureDetector(
        behavior: HitTestBehavior.opaque,
        onPanDown: (_) {
          FocusScope.of(context).requestFocus(FocusNode());
        },
        child: SingleChildScrollView(
        ...