Question

我们如何在SliverList中实现分隔符/分隔符。 ListView.separated是在列表中创建分隔符的便捷方法，但我看不到任何有关SliverList的文档或示例

Answer 1

简单方法，

使用SliverFillRemaining

return CustomScrollView(
    slivers: <Widget>[
      SliverFillRemaining(
        child: ListView.separated(
            itemCount:value.length,
            //shrinkWrap: true,
            physics: NeverScrollableScrollPhysics(),
            //padding: EdgeInsets.all(0),
            separatorBuilder: (BuildContext context, int index){
              return Divider();
            },
            itemBuilder: (BuildContext context, int index) {
              //widget return
            })
      ),

使用SliverList

 SliverList(
            delegate: SliverChildBuilderDelegate(
                  (BuildContext context, int index) {
                return Column(
                  children: <Widget>[
                    SizedBox(height: 5),
                    //your main widget is here
                    SizedBox(height: 5),
                    Divider(height: 1)
                  ],
                );

              },
              childCount: model.length,
            ),
          )

Answer 2

类似于ListView.separated

  import 'dart:math' as math;

  List<String> values = List();
  for (int i = 1; i <= 50; i++) {
    values.add(i.toString());
  }

  return CustomScrollView(
    semanticChildCount: values.length,
    slivers: <Widget>[
      SliverList(
        delegate: SliverChildBuilderDelegate(
          (BuildContext context, int index) {
            final int itemIndex = index ~/ 2;
            if (index.isEven) {
              return Padding(
                  child: Text(values[itemIndex]),
                  padding: EdgeInsets.all(16));
            }
            return Divider(height: 0, color: Colors.grey);
          },
          semanticIndexCallback: (Widget widget, int localIndex) {
            if (localIndex.isEven) {
              return localIndex ~/ 2;
            }
            return null;
          },
          childCount: math.max(0, values.length * 2 - 1),
        ),
      ),
    ],
  );

Answer 3

尽管这个问题非常古老，但我会为将来的读者添加答案。您只需用Container包装小部件，然后为容器提供底部边框。这是一个示例：

Container(
    decoration: BoxDecoration(
        border: Border(
            bottom: BorderSide(color: Colors.grey.shade300, width: 0.5))),
    child: YourWidget(),
  ),

Answer 4

您可以使用Divider()小部件。

Here you can find the documentation.

SliverList抖动中的分隔符/分隔符

4 个答案: