如何在Flutter中对齐SliverGrid中的文本和图像？

SliverGrid.count(
  crossAxisCount: 2,
  children: [
    // 在这里放置文本和图像
  ],
)

SliverGrid.count(
  crossAxisCount: 2,
  children: [
    Align(
      alignment: Alignment.center,
      child: Text('文本'),
    ),
    Align(
      alignment: Alignment.center,
      child: Image.network('图片链接'),
    ),
  ],
)

SliverGrid.count(
  crossAxisCount: 2,
  children: [
    Align(
      alignment: Alignment.center,
      child: Text('文本'),
    ),
    Align(
      alignment: Alignment.center,
      child: AspectRatio(
        aspectRatio: 1,
        child: Image.network('图片链接'),
      ),
    ),
  ],
)