颤振容器高度与父高度相同 [英] Flutter Container height same as parent height

问题描述

我想用白色容器覆盖卡片，但是容器总是需要一个高度(否则它不会显示).我希望它和它的父堆栈一样大.我该如何进行这项工作?卡的高度会有所不同.我想我缺少了一些;)

I want to overlay a Card with a white container, but the container always needs a height (otherwise it's not displayed). I want it to be as big as its parent, the stack. How can I make this work? The height of the card varies. I guess I'm missing something ;)

return new Stack(
 children: <Widget>[
  new Card( ... ),
  new Container(color: Colors.white70),
 ]
);

推荐答案

您可以使用Positioned.fill强制堆栈子项填充Stack.

You can use a Positioned.fill to force a stack child to fill Stack.

Stack(
  children: [
    Card(),
    Positioned.fill(
      child: Container(color: Colors.red),
    )
  ]
);

这篇关于颤振容器高度与父高度相同的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！