如何在页面底部添加一个 Widget 并使用 ListView 滚动?

How can I add a Widget that is at the bottom of the page and Scrollable with ListView?

我有一个构建多个卡片的 ListView,在它们下面,我想添加一个 Text 小部件,该小部件位于 ListView 下方但位于页面底部,这意味着您必须向下滚动到最后一张卡看吧。

   Widget _buildCardList() {
    return ListView.builder(
      itemBuilder: _buildFoodCards,
      itemCount: cardList.length,
    );
  }

   @override
  Widget build(BuildContext context) {
    return Container(
      // constraints: BoxConstraints.expand(),
      decoration: BoxDecoration(
        gradient: LinearGradient(
          begin: Alignment.topCenter,
          end: Alignment.bottomCenter,
          colors: [Color(0xff170422), Color(0xff9B22E6)],
          stops: [0.75, 1],
        ),
      ),
      child: Column(
        children: <Widget>[
          Expanded(child: _buildCardList()),
          Text(
            'TEXT THAT SHOULD BE SCROLLABLE UNDER THE LISTVIEW',
            style: TextStyle(color: Colors.white),
          )
        ],
      ),
    );
  }

我现在在 ListView 下有文本,但文本在页面上是静态的,不能随 ListView 滚动。

how it looks right now

只需进行一些更改即可使其正常工作:

  • shrinkWrap= true 设置为您的 ListView
  • physics = NeverScrollableScrollPhysics 设置为您的 ListView
  • SingleChildScrollView 添加为 Column 的 parent。
  • 删除 Expanded 小部件。

代码


  Widget _buildCardList() {
    return ListView.builder(
      shrinkWrap: true,
      physics: NeverScrollableScrollPhysics(),
      itemBuilder: _buildFoodCards,
      itemCount: cardList.length,
    );
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      // constraints: BoxConstraints.expand(),
      decoration: BoxDecoration(
        gradient: LinearGradient(
          begin: Alignment.topCenter,
          end: Alignment.bottomCenter,
          colors: [Color(0xff170422), Color(0xff9B22E6)],
          stops: [0.75, 1],
        ),
      ),
      child: SingleChildScrollView(
        child: Column(
          children: <Widget>[
            _buildCardList(),
            Text(
              'TEXT THAT SHOULD BE SCROLLABLE UNDER THE LISTVIEW',
              style: TextStyle(color: Colors.white),
            )
          ],
        ),
      ),
    );
  }

希望对您有所帮助:)