how to push all content up when open keyboard

Question

Is it possible to push all content up when open keyboard? (not only textField area, whole page push up)

   showModalBottomSheet(
       context: context,
       builder: (BuildContext context) {
            return BottomSheet();
       },
   isScrollControlled: true);

BottomSheet class

class BottomSheet extends StatefulWidget {
  @override
  _BottomSheetState createState() => _BottomSheetState();
}

class _BottomSheetState extends State<BottomSheet> {

  @override
  Widget build(BuildContext context) {
    return
      SingleChildScrollView(
        padding: EdgeInsets.only(
            bottom: MediaQuery.of(context).viewInsets.bottom),
            child: Container(
                child: Column(
                  children: <Widget>[...

I want to like this push-up,

But Current output is,

Answer 1

Simply putting reverse=true inside the SingleChildScrollView will suffice.

Widget build(BuildContext context) {
  return Scaffold(
    body: SafeArea(
      child: SingleChildScrollView(
        reverse: true,
        child: Container(
          ........
          ........ 

Answer 2

You can simply give the widget a bottom position of MediaQuery.of(context).viewInsets.bottom if you are using a stack.

In your case, set margin : to MediaQuery.of(context).viewInsets.bottom instead of padding.