小编Jay*_*ani的帖子

我正在尝试制作一个在移动设备和桌面设备上运行良好的响应式页面。我在 NestedScrollView 中使用 SliverAppBar。问题是 NestedScrollView 中完全忽略了对容器的 maxwidth 约束。此行为也与 CustomScrollView 相同。

如何限制 NestedScrollView 主体小部件中容器的大小。

下面是代码：

import "dart:math";
import "package:flutter/material.dart";

class ResponsiveSliver extends StatefulWidget {
  static const routeName = 'responsive-sliver';

  @override
  _ResponsiveSliverState createState() => _ResponsiveSliverState();
}

class _ResponsiveSliverState extends State<ResponsiveSliver> with SingleTickerProviderStateMixin {
  
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: NestedScrollView(
        floatHeaderSlivers: true,
        headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) {
          return <Widget>[
            SliverAppBar(
              title: Text(
                "Responsive Sliver",
              ),
              centerTitle: true,
              pinned: true,
              floating: true,
            ),
          ];
        },
        body: ConstrainedBox(
          constraints: BoxConstraints(maxWidth: 200), …