android - Flutter:如何将 RefreshIndicator 与 SliverAppBar 一起使用

Question

我正在尝试将 RefreshIndicator 添加到 CustomScrollView。有可能吗？这是代码示例:

CustomScrollView(
  slivers: <Widget>[
    SliverAppBar(
      title: Text('POSTAPP'),
      centerTitle: true,
      floating: true,
      pinned: false,
    ),
    SliverList(
        delegate: SliverChildBuilderDelegate(
          _createPostItem,
          childCount: postRepo.posts.length,
      ),
    ),
  ],
);

Answer 1

只有这样:

RefreshIndicator(child: CustomScrollView(
        slivers: <Widget>[
          SliverAppBar(
            title: Text('POSTAPP'),
            centerTitle: true,
            floating: true,
            pinned: false,
          ),
          SliverList(
              delegate: SliverChildBuilderDelegate(_createPostItem,
                  childCount: postRepo.posts.length))
        ],
      ), onRefresh: () => Future.value(true));

SliverList 不可滚动，因此您不能将其包装在 RefreshIndicator 中