Question

我尝试在银条列表（CustomScrollview-SliverList）内制作水平可滚动列表。

这是我的代码：

import 'package:flutter/material.dart';
class DetailScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
   return Scaffold(
    body: CustomScrollView(
        slivers: <Widget>[
        DetailAppBar(),
        SliverPadding(
          padding: EdgeInsets.all(16.0),
          sliver: SliverList(
            delegate: SliverChildListDelegate(
              [
                Card(child: Text('data'),),
                Card(child: Text('data'),),
                Card(child: Text('data'),),
                Card(child: Text('data'),),

                // Scrollable horizontal widget here
              ],
            ),
          ),
        ),
      ],
    ),
    bottomNavigationBar: NavigationButton());


 }

}

您能给我例子或解决方案吗？我真的需要一些帮助。

Answer 1

在ListView内使用SliverToBoxAdapter。

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: CustomScrollView(
        slivers: <Widget>[
          SliverPadding(
            padding: EdgeInsets.all(16.0),
            sliver: SliverList(
              delegate: SliverChildListDelegate(
                [
                  Card(
                    child: Text('data'),
                  ),
                  Card(
                    child: Text('data'),
                  ),
                  Card(
                    child: Text('data'),
                  ),
                  Card(
                    child: Text('data'),
                  ),
                ],
              ),
            ),
          ),
          SliverToBoxAdapter(
            child: Container(
              height: 100.0,
              child: ListView.builder(
                scrollDirection: Axis.horizontal,
                itemCount: 10,
                itemBuilder: (context, index) {
                  return Container(
                    width: 100.0,
                    child: Card(
                      child: Text('data'),
                    ),
                  );
                },
              ),
            ),
          ),
        ],
      ),
    );
  }

Answer 2

其他解决方案对我不起作用，因为当我使用ListView

时会出错

这是我写的叫做HorizontalSliverList的一类，它做的很好，很容易

这是您需要复制的课程：

class HorizontalSliverList extends StatelessWidget {
  final List<Widget> children;
  final EdgeInsets listPadding;
  final Widget divider;

  const HorizontalSliverList({
    Key key,
    @required this.children,
    this.listPadding = const EdgeInsets.all(8),
    this.divider,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return SliverToBoxAdapter(
      child: SingleChildScrollView(
        scrollDirection: Axis.horizontal,
        child: Padding(
          padding: listPadding,
          child: Row(children: [
            for (var i = 0; i < children.length; i++) ...[
              children[i],
              if (i != children.length - 1) addDivider(),
            ],
          ]),
        ),
      ),
    );
  }

  Widget addDivider() => divider ?? Padding(padding: const EdgeInsets.symmetric(horizontal: 8));
}

Flutter-Sliver列表内的Sliver Layout水平滚动

2 个答案: