Wrap it with the widget you want to visible in case the keyboard pops out.

keyboard_aware_widget.dart

import 'package:flutter/material.dart';

class KeyboardAwareWidget extends StatelessWidget {
  const KeyboardAwareWidget({
    Key? key,
    this.padding = 16,
    required this.child,
  }) : super(key: key);
  final double padding;
  final Widget child;
  @override
  Widget build(BuildContext context) {
    final keyboardVisibility = MediaQuery.of(context).viewInsets.bottom;

    return Padding(
      padding: EdgeInsets.only(
        top: padding,
        left: padding,
        right: padding,
        bottom: keyboardVisibility > 0 ? keyboardVisibility + padding : padding,
      ),
      child: child,
    );
  }
}