H5_Flutter/lib/view/component/top_container.dart

import 'package:flutter/material.dart';
import 'package:keyboard_dismisser/keyboard_dismisser.dart';

import '../../utils/size_fit.dart';

class TopContainer extends StatelessWidget {
  Widget child;
  TopContainer({Key? key, required this.child}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    SizeFit.initialize(context);
    return KeyboardDismisser(
      gestures: const [GestureType.onTap, GestureType.onPanUpdateDownDirection],
      child: Container(
          alignment: Alignment.topCenter,
          child: ConstrainedBox(
              constraints: const BoxConstraints(maxWidth: 750.0),
              child: child)),
    );
  }
}