PROSAGA码农传奇-flutter-列中的定位小部件导致卡溢出

列中的定位小部件导致卡溢出

作者: 你瞎啊！撞我心了
发布时间: 2024-12-07 07:49:23 (2月前)
转自：

<div class =“post-text”itemprop =“text”>
  <P>
    你需要定义 - 
     <code>
      right: 1.0, left: 1.0,
    </code>
     也与底部一起
     <code>
      Positioned
    </code>
    。小部件。
  </p>
   <pre>
    <code>
         @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        children: <Widget>[
          Stack(
            children: <Widget>[
              Container(
                  height: MediaQuery.of(context).size.height,
                  child: Image.network("https://placeimg.com/640/480/any",
                      fit: BoxFit.cover)),
              Positioned(
                bottom: 1.0,
                right: 1.0,
                left: 1.0,
                child: Card(
                  shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.circular(15.0)),
                  child: Padding(
                    padding: const EdgeInsets.all(8.0),
                    child: Text(
                      "A description would be going here, this is just placeholder text.",
                      style: TextStyle(fontSize: 30),
                    ),
                  ),
                ),
              )
            ],
          ),
        ],
      ),
    );
  }

</code>
  </pre>
  <P>
    输出：
  </p>
  <P>
    <a href="https://i.stack.imgur.com/igwiu.png" rel="nofollow noreferrer">
      <img src =“https://i.stack.imgur.com/igwiu.png”alt =“在此处输入图片说明”/>
    </A>
  </p>
</DIV>